九州大学大学院理学府地球惑星科学専攻 流体圏・宇宙圏科学講座

メンバー

湯元 清文

ゆもと きよふみ

教授

理学研究院 地球惑星科学部門

流体圏・宇宙圏科学

Publication List

  • I. International Journals (255)
    • First author's(47)
      1. 1. Yumoto, K., and T. Saito (1980); Hydromagnetic waves driven by velocity shear instability
        in the magnetospheric boundary layer, Planet. Space_Sci., 28, 789-798.
      2. Yumoto, K. (1981); Parametric instability of hydromagnetic waves with oblique propagation,
        J._Plasma_Phys., 26, 497-507.
      3. Yumoto, K., and T. Saito (1982); Parametric excitation of Alfven wave by magnetosonic
        wave with oblique propagation, Planet._Space_Sci., 30, 199-207.
      4. Yumoto, K., and T. Saito (1982); Nonlinear resonance theory of Pc 3 magnetic pulsation,
        J._Geophys._Res., 87, 5159-5168.
      5. Yumoto, K., T. Saito, and T. Sakurai, (1983); Local time asymmetry in the characteristics of
        Pc 5 magnetic pulsations, Planet._Space_Sci., 31, 459-471.
      6. Yumoto, K., and T. Saito (1983); Relation of compressional HM waves at GOES 2 to
        low-latitude Pc 3 magnetic pulsations, J._Geophys._Res., 88, 10041-10052.
      7. Yumoto, K. (1983); Reply on Uberoi's comments, J._Geophys._Res., 88, 4960.
      8. Yumoto, K., T. Saito, B.T. Tsurutani, E.J. Smith, and S.-I. Akasofu (1984); Relationship
        between the IMF magnitude and Pc 3 magnetic pulsations in the magnetosphere,
        J._Geophys._Res., 89, 9731-9740.
      9. Yumoto, K. (1984); Long-period magnetic pulsations generated in the magnetospheric
        boundary layer, Planet._Space_Sci., 32, 1205-1218.
      10. Yumoto, K. (1985); Low-frequency upstream waves as a probable source of low-latitude Pc
        3-4 magnetic pulsations, Planet._Space_Sci., 33, 239-249.
      11. Yumoto, K., T. Saito, S.-I. Akasofu, B.T. Tsurutani, and E.J. Smith (1985); Propagation
        mechanism of daytime Pc 3-4 pulsations observed at synchronous orbit and multiple
        ground-based stations, J._Geophys. Res., 90, 6439-6450.
      12. Yumoto, K. (1985); Characteristics of localized resonance coupling oscillations of the slow
        magnetosonic wave in non-uniform plasma, Planet._Space_Sci., 33, 1029-1036.
      13. Yumoto, K., T. Saito, and Y. Tanaka (1985); Low-latitude Pc 3 magnetic pulsations
        observed at conjugate stations (L 1.5), J._Geophys._Res., 90, 12201-12207.
      14. Yumoto, K.(1986); Generation and propagation mechanisms of low-latitude magnetic
        pulsations --- A review, J._Geophys., 60, 79-105.
      15. Yumoto, K. (1986); Generation mechanisms of Pc 3 magnetic pulsations at equatorial and
        low latitudes, Planet._Space_Sci., 34, 1329-1334.
      16. Yumoto, K., T. Saito, and T. Nakagawa (1986); Hydromagnetic waves near O+ (or
        H2O+) ion cyclotron frequency observed by Sakigake at the closest approach to comet
        Halley, Geophys._Res._Lett., 13, 825-828.
      17. Yumoto, K. (1987); Characteristics of daytime bay and Pi 2 magnetic variations: A case
        study, Planet._Space_Sci., 35, 799-806.
      18. Yumoto, K., A. Wolfe, T. Terasawa, E.L. Kamen, and L.J. Lanzerotti (1987); Dependence
        of Pc 3 magnetic energy spectra at South Pole on upstream solar wind parameters,
        J._Geophys._Res., 92, 12437-12442.
      19. Yumoto, K., T. Saito, and T. Nakagawa (1987); Hydromagnetic waves associated with
        comet water group ions: Sakigake observation, Astron._Astrophys., 187, 117-120.
      20. Yumoto, K. (1988); External and internal sources of low-frequency MHD waves in the
        magnetosphere --- A review, J._Geomag._Geoelectr., 40, 293-311.
      21. Yumoto, K., T. Saito, Y. Tanaka, K.J.W. Lynn, F.W. Menk, and B.J. Fraser (1988);
        Polarization and amplitude characteristics of Pc 3 pulsations in conjugate area around L =
        1.3-2.1, J._Geophys._Res., 93, 7386-7397.
      22. Yumoto,K., and W. Miyake (1988); Reply to L.J. Lanzerotti and A. Wolfe,
        J. Geomag. Geoelectr., 40, 1411-1412.
      23. Yumoto, K., K. Takahashi, T. Saito, F.W. Menk, B.J. Fraser, T.A. Potemra, and L.J.
        Zanetti (1989); Some aspects of the relation between Pi 1-2 magnetic pulsations observed at
        L =1.3-2.1 on the ground and substorm-associated magnetic field variations in the near-earth
        magnetotail observed by AMPTE/CCE, J._Geophys._Res., 94, 3611-3618.
      24. Yumoto, K., K. Takahashi, T. Ogawa, and T. Watanabe (1989); Ionospheric HF-Doppler
        and geomagnetic oscillations in association with ssc and si in February 1986,
        J._Geomag._Geoelectr., 41, 871-878.
      25. Yumoto, K., K. Takahashi, T. Sakurai, P.R. Sutcliffe, S. Kokubun, T. Saito, H. Luhr, M.
        Kuwashima, and N. Sato (1990); Multiple ground-based and satellite observations of global
        Pi 2 magnetic pulsations, J._Geophys._Res., 95, 15175-15184.
      26. Yumoto, K. (1990); Evidence of magnetic cavity Pi 2 waves, J._Geomag. Geoelectr., 42,
        1281-1290.
      27. Yumoto, K., Y. Tanaka, T. Oguti, K. Shiokawa, Y. Yoshimura, A. Isono, B.J. Fraser,
        F.W. Menk, and 210o MM Magnetic Observation Group (1992); Globally coordinated
        magnetic observations along 210o magnetic meridian during STEP period: 1. Preliminary
        Results of low-latitude Pc 3's, J._Geomag._Geoelectr., 44, 261-276.
      28. Yumoto, K., B.A. Pilipenko, E.H. Fedorov, H.A. Kurneva (1993); Mechanism of
        damping of geomagnetic pulsations at low latitudes, Geomagnetism_&_Aeronomy,
        33, No.5, 34-41.
      29. Yumoto, K., K. Shiokawa, Y. Tanaka, and T. Oguti (1994); Characteristics of magnetic
        variations caused by low-latitude aurorae observed around 210o magnetic meridian,
        J._Geomag._Geoelectr., 46, 213-229.
      30. Yumoto K., A. Isono, K. Shiokawa, H. Matsuoka, Y. Tanaka, F.W. Menk, B.J. Fraser,
        and 210o MM Magnetic Observation Group (1994); Global cavity mode-like and localized
        field-line Pc 3-4 oscillations stimulated by interplanetary impulse (si/sc): Initial results from
        the 210o MM magnetic observations, AGU Geophysical Monograph on Solar Wind
        Sources of Magnetospheric ULF Waves, 81, 335-344.
      31. Yumoto, K, H. Osaki, K. Fukao, K. Shiokawa, Y. Tanaka, S.I. Soloveyev, G. Krymskij,
        E.F. Vershinin, V.F. Osinin, and 210o MM Magnetic Observation Group (1994);
        Correlation of high- and low-latitude Pi 2 magnetic pulsations observed at 210o magnetic
        meridian chain stations, J. Geomag. Geoelectr., 46, 925-935.
      32. Yumoto, K., T. Endo, K. Shiokawa, Y. Tanaka, and 210o MM Magnetic Observation
        Group (1994); Ionospheric current and magnetic variations caused by low-latitude aurorae,
        COSPAR Colloqa Ser. Vol.7 on Low-latitude Ionospheric Physics, edited by Fu-Shong
        Kuo, Pergamon Press, pp.241-250.
      33. Yumoto, K., V. Pilipenko, E. Fedorov, N. Kurneva and K. Shiokawa (1995); The
        mechanisms of damping of geomagnetic pulsations, J. Geomag. Geoelectr., 47, No. 2,
        163-176.
      34. Yumoto, K. and The 210o MM Magnetic Observation Group (1995), Initial results from the
        210o magnetic meridian project--Review, J. Geomag. Geoelectr., 47, 1197-1213.
      35. Yumoto, K., and the 210o MM Magnetic Observation Group (1996); The STEP 210o
        magnetic meridian network project, J. Geomag. Geoelectr., 48, 1297-1309.
      36. Yumoto, K., H. Matsuoka, H. Osaki, K. Shiokawa, Y. Tanaka, T.-I. Kitamura, H.
        Tachihara, M. Shinohara, S.I. Solovyev, G.A. Makarov, E.F. Vershinin, A.V. Buzevich,
        S.L. Manurung, Obay Sobari, Mamat Ruhimat, Sukamadradjat, R.J. Morris, B.J. Fraser,
        F.W. Menk, K.J.W. Lynn, D.G. Cole, J.A. Kennewell, J.V. Olson, and S.-I. Akasofu,
        (1996); North/south asymmetry of sc/si magnetic variations observed along the 210o
        magnetic meridian, J. Geomag. Geoelectr., 48, 1333-1340.
      37. Yumoto, K., V. Pilipenko, E. Fedorov, N. Kurneva, M. De Lauretis and K. Kitamura
        (1997); Magnetospheric ULF phenomena stimulated by ssc, J. Geomag. Geoelectr., 49,
        1179-1195.
      38. Yumoto, K, and the CPMN Group (2001); Characteristics of Pi 2 magnetic pulsations
        observed at the CPMN stations: A review of the STEP results, Earth Planets Space, 53,
        981-992.
      39. Yumoto K., M. Shinohara, K. Nozaki, E. A. Orosco, Fr. V. Badillo, D. Bringas and the CPMN and
        WestPac Observation Groups (2002); Simultaneous Ground-based of Electric and Magnetic
        Field Variations near the Magnetic Equator for Space Weather Study, COSPAR Colloquia
        Ser.Vol. 12 on Space Weather Study using Multi-point Techniques, Edited by Ling-Hsiao Lyu,
        Pergamon Press, pp. 243-247.
      40. Yumoto, K.(2002); Sudden changes during auroral substorm, Bifurcation Phenomena in Plasma, Edited by S-I. Itoh and Y. Kawai, Kyushu Univ. Press, pp.217-227.

      41. Yumoto, K.(2004); Transport of HM energy through the magnetosphere-ionosphere coupling system-
        Results from the ground-based network observations, Advances in Solar-Terrestrial Physics,
        edited by H. Oya, TERRAPUB, Tokyo, pp.175-211.
      42. Yumoto, K., and the MAGDAS Group (2006); MAGDAS project and its application for space weather, Solar Influence on the Heliosphere and Earth's Environment: Recent Progress and Prospects, Edited by N. Gopalswamy and A. Bhattacharyya, ISBN-81-87099-40-2, pp. 399-405.
      43. Yumoto K. and the MAGDAS Group (2007): Space weather activities at SERC for IHY: MAGDAS: Bull. Astr. Soc. India 35, 511-522.
      44. Yumoto K., A. Ikeda, M. Shinohara, K. Nozaki, S. Watari, K. Kitamura, V. V. Bychkov, and B. M. Shevtsov (2008): Electric and Magnetic Field Variations at Low and Equatorial Latitudes During Sc, DP2, and Pi2 Events, Advances in Geosciences, in press.
      45. Yumoto K., S. Ikemoto, M.G. Cardinal, M. Hayakawa , K. Hattori , J.Y. Liu , S. Saroso, Ruhimat M., M. Husni , D. Widarto, E. Ramos., D. McNamara, R.E. Otadoy, G. Yumul, R. Ebora and N. Servando (2008): A new ULF wave analysis for seismo-electromagnetics using CPMN/MAGDAS data, Physics and Chemistry of the Earth, in press.
      46. Yumoto, K. H. Kawano, and MAGDAS group (2009); MAGDAS for geospace environment monitoring, 26th ISTS-ISTS Special Issue of JSASS On-Line Journal, Space Technology Japan, in press.
      47. Yumoto, K., G. Maeda, S. Abe, T. Uozumi, A. Fujimoto, A. Ikeda, T. Tokunaga, Y. Yamazaki, T. Ueno, Y. Hitayama, B. Rabiu, C.B.S. Uiso, P. Baki, K.M. Badi, L. B. Kolawole, T. Afullo, A. Macamo, H. Mweene, and MAGDAS/CPMN Group (2009); Progress report on the global deployment of MAGDAS, Sun and Geosphere, in press.
    • Co-author's(208)
      1. Kanno, T., T. Saito, T. Sakurai, K. Yumoto, Y. Ishida, and T. Saito (1975); Dynamic
        spectral analysis of cosmic ray anisotropy by means of high-speed spectral analysis (HISSA)
        method, Rept._Ionos._Space Res._Japan, 29, 118-126.
      2. Saito, T., K. Yumoto, and Y. Koyama (1976); Magnetic pulsation Pi 2 as a sensitive
        indicator of magnetospheric substorm, Planet._Space Sci., 24, 1025-1029.
      3. Saito, T., T. Sakurai, and K. Yumoto (1978); The earth's paleomagnetosphere as the third
        type of the planetary magnetosphere, Planet. Space_Sci., 26, 413-422.
      4. Unwin, R.S., T. Saito, and K. Yumoto (1978); Measurement of meridional electric field by
        means of radar auroragraph, Planet._Space_Sci., 26, 519-524.
      5. Saito, T., and K. Yumoto (1978); Comparison of the two-snake model with the observed
        polarization of the substorm-associated magnetic pulsation, Ps 6, J._Geomag._Geoelectr.,
        30, 39-54.
      6. Saito, T., T. Sakurai, K. Yumoto, T. Tamura, M. Seto, T. Hayasaka, and I. Aoyama (1980);
        Magnetometers for geophysical use, Part 2, test of twelve kinds of ring core, J._Geomag.
        Geoelectr., 32, 649-659.
      7. Aoyama, I., F. Toyama, T. Takahashi, T. Sakurai, Y. Tonegawa, T. Saito, and K. Yumoto
        (1981); Field-aligned currents observed by satellite JIKIKEN (Exos-B), J._Geomag.
        Geoelectr., 33, 111-118.
      8. Saito, T., K. Yumoto, I. Aoyama, F. Toyama, T. Sakurai, T. Takahashi, and Y. Tonegawa
        (1981); A long-period Pi 2 satellite JIKIKEN (Exos-B), J._Geomag._Geoelectr., 33,
        119-124.
      9. Saito, T., and K. Yumoto (1981); A 15-min period geomagnetic pulsation Ps 6 excited by an
        instability of auroral electrojets, Ed. by H. Kikuchi, Relation_between Laboratory and
        Space_Plasmas, pp. 187-195.
      10. Saito, T., K. Yumoto, K. Hirao, and T. Nakagawa (1986); Interaction between comet
        Halley and the interplanetary magnetic field observed by Sakigake, Nature, London, 321,
        303-307.
      11. Oyama, K.-I., K. Hirao, T. Hirano, K. Yumoto, and T. Saito (1986); Was the solar wind
        decelerated by comet Halley ?, Nature, London, 321, 310-313.
      12. Saito, T., K. Yumoto, K. Hirao, I. Aoyama, and E.J. Smith, (1986); Three-dimensional
        structure of the heliosphere as inferred from observations with a Japanese Halley spacecraft,
        Ed. by R.G. Marsden, The_Sun_and_the_Heliosphere_in_Three_Dimensions, D. Reidel
        Publ. Comp., pp. 281-286.
      13. Saito, T., K. Yumoto, K. Hirao, K. Saito, T. Nakagawa, and E.J. Smith (1986); A
        disturbance of the ion tail of comet Halley and the heliospheric structure as observed by
        Sakigake, Geophys._Res._Lett., 13, 821-824.
      14. Saito, T., K. Saito, T. Aoki, and K. Yumoto (1987); Possible models on disturbances of
        the plasma tail of comet Halley during the 1985-1986 apparition, Astron._Astrophys., 187,
        201-208.
      15. Saito, T., K. Yumoto, K. Hirao, S. Minami, K. Saito, and E.J. Smith (1987); Structure
        and dynamics of the plasma tail of comet P/Halley, I. Knot event on December 31, 1985,
        Astron._Astrophys., 187 , 209-214.
      16. Miyake, W., T. Mukai, K. Yumoto, T. Saito, and K. Hirao (1987); A correlation study
        the amplitude of Pc 3 geomagnetic pulsations, J._Geomag._Geoelectr., 39, 159-164.
      17. Takahashi, K., L.J. Zanetti, R.W. McEntire, T.A. Potemra, and K. Yumoto (1987);
        Distribution of the magnetotail current sheet observed by AMPTE/CCE, Geophys. Res.
        Lett., 14, 1019-1022.
      18. Miyake, W., K. Kobayashi, K.-I. Oyama, T. Mukai, T. Abe, T. Terasawa, K. Yumoto, T.
        Saito, K. Hirao, A.J. Lazarus, and A.D. Johnstone (1988); Multi-spacecraft observations
        of heliogra-phic structure of the solar wind, Planet._Space_Sci., 36, 1329-1342.
      19. Sutcliffe P. R. and K. Yumoto (1989); Dayside Pi 2 pulsations at low latitudes,
        Geophys._Res._Lett., 16, 887-890.
      20. Fukunishi, H., R. Fujii, S. Kokubun, K. Hayashi, T. Tonegawa, S. Okano, M. Sugiura,
        K. Yumoto, I. Aoyama, T. sakurai, T. Saito, T. Iijima, A. Nishida, and M. Natori (1990);
        Magnetic field observations on the Akebono (EXOS-D) satellite, J._Geomag._Geoelectr.,
        42, 385-409.
      21. Sutcliffe, P., and K. Yumoto (1991); On the cavity mode nature of low latitude Pi 2
        pulsations, J._Geophys._Res., 96, 1543-1551.
      22. Takahashi, K., S.-I. Ohtani, and K. Yumoto (1992); AMPTE CCE observations of Pi 2
        pulsations in the inner magnetosphere, Geophys._Res. Lett., 19, 1447-1450.
      23. Shiokawa, K., and K. Yumoto (1993); Global characteristics of particle precipitations and
        field-aligned electron accelerations during isolated substorms, J._Geophys._Res., 98,
        1359-1375.
      24. Shiokawa, K., K. Yumoto, Y. Tanaka, T. Oguti, and Y. Kiyama (1994); Low-latitude
        auroras observed at Moshiri and Rikubetsu (L=1.6) during magnetic storms on February
        26, 27, 29, and May 10, 1992, J._Geomag._Geoelectr., 46, 231-252.
      25. Menk, F.W., and K. Yumoto (1994); Conjugate and meridional phase structure of low
        latitude ULF pulsations, Adv._Space_Res., 5, 425-428.
      26. Kawano, H., T. Yamamoto, S. Kokubun, K. Tsuruda, A.T. Lui, D.J. Williams, K.
        Yumoto, H. Hayakawa, M. Nakamura, T. Okada, A. Matsuoka, K. Shiokawa, and A.
        Nishida (1994); A flux rope followed by recurring encounters with traveling compression r
        egions:Geotail observations, Geophys._Res._Lett., 21, 2891-2894.
      27. Takahashi, K., S. Kokubun, H. Matsuoka, K. Shiokawa, K. Yumoto, M. Nakamura, H.
        Kawano, T. Yamamoto, A. Matsuoka, T. Tsuruda and H. Hayakawa (1994); Geotail
        observation of magnetosheric Pc 3 waves in the dayside magnetosphere, Geophys._Res.
        Lett., 21, 2899-2902.
      28. Fedorov E.N., N.G., Mazur, V.A. Pilipenko, and K. Yumoto (1995); On the theory of
        field line resonances in plasma configurations, Phys. of_Plasmas, 2, 527-532.
      29. Matsuoka, H., K. Takahashi, K. Yumoto, B.J. Anderson, and D.G. Sibeck (1995);
        Observation and modeling of compressional Pi 3 magnetic pulsations, J._Geophys._Res.,
        100, 12103-12115.
      30. Iwata, A., Y. Tanaka, M. Nishino, and K. Yumoto (1995); Magnetic storm-related electrons
        penetrating into the inner magnetosphere, deduced from ground-based measurements of
        resonant waves, J._Geomag. Geoelectr., 47, 943-952.
      31. Shiokawa, K., K. Yumoto, K. Hayashi, T. Oguti, and D.J. McEwen (1995); A statistical
        study of the motions of auroral arcs on the high-latitude morning sector, J._Geophys.
        Res., 100, No.11, 21,979-21,985.
      32. Pilipenko, V.A., N.G., Kleimenova, O.V. Kozyreva, K. Yumoto, and J. Bitterli (1996);
        Is Cusp the source of mid-latitude Pc 3 pulsations ?, Geomag._and_Aeronomy, 36, No.2,
        39-48.
      33. Angelopoulos, V., F.V. Coroniti, C.F. Kennel, M.G. Kivelson, R.J. Walker, C.T.
        Russell, R.L. McPherron, E. Sanchez, C.-I. Meng, W. Baumjohann, G.D. Reeves, R.D.
        Belian, N. Sato, E. Friis-Christensen, P.R. Sutcliffe, K. Yumoto, and T. Harris (1996);
        Multipoint analysis of a bursty bulk flow event on April 11, 1985, J._Geophys._Res., 101,
        No. A3, 4967-4989.
      34. Hayakawa, M., R. Kawate, O.A. Molchanov, and K. Yumoto (1996); Results of
        ultra-low-frequency magnetic field measurements during the Guam earthquake of 8 August
        1993, Geophys._Res._Lett., 23, No.3, 241-244.
      35. Kawano, H., A. Nishida, M. Fujimoto, T. Mukai, S. Kokubun, T. Yamamoto, T.
        Terasawa, M. Hirahara, Y. Saito, S. Machida, K. Yumoto, H. Matsumoto, and T. Murata
        (1996); A quasi-stagnant plasmoid observed with Geotail on October 15, 1993, J.
        Geomag._Geoelectr., 48, 525-539.
      36. Kokubun, S., L.A. Frank, K. Hayashi, Y. Kamide, R.P. Lepping, T. Mukai, R.
        Nakamura, W.R. Paterson, T. Yamamoto, and K. Yumoto (1996); Large field events in the
        distant magnetotail during magnetic storms, J._Geomag._Geoelectr., 48, 561-576.
      37. Nakamura, R., S. Kokubun, Y. Kamide, K. Yumoto, T. Yamamoto, L.A. Frank, W.R.
        Paterson, E. Friis-Christensen, K. Hayashi, T. Iyemori, H. Huhr, and O.A. Troshichev
        (1996); Magnetosheath observations near the center of magnetotail during a weak
        geomagnetic storm on January 25 1993, J._Geomag._Geoelectr., 48, 577-588.
      38. Osaki, H., K. Yumoto, K. Fukao, K. Shiokawa, F.W. Menk, B.J. Fraser, and the 210o
        MM Magnetic Observation Group (1996); Characteristics of low-latitude Pi 2 pulsations
        along the 210o magnetic meridian, J._Geomag._Geoelectr., 48, 1421-1430.
      39. Petrinec, S.M., K. Yumoto, H. Luhr, D. Orr, D. Miling, K. Hayashi, S. Kokubun, and T.
        Araki (1996); The CME event of February 21, 1994; Response of the magnetic field at the
        Earth's surface, J._Geomag. Geoelectr., 48, 1341-1380.
      40. Shiokawa, K., K. Yumoto, N. Nishitani, K. Hayashi, T. Oguti, D.J. McEwen, Y.
        Kiyama, F.J. Rich, and T. Mukai (1996); Quasi-periodic poleward motions of Sun-aligned
        auroral arcs in the high latitude morning sector - A case study, J._Geophys._Res., 101,
        19,789-19,800.
      41. Shiokawa, K., K. Yumoto, C.-I. Meng and G. Reeves (1996); Broadband electrons
        observed by the DMSP satellites during storm-time substorms, Geophys._Res._Lett., 23,
        2529-2532.
      42. Shiokawa, K., K. Yumoto, Y. Tanaka, H. Osaki, M. Sato, T. Kato, Y. Kato, M. Sera, Y.
        Ikegami, S.-I. Akasofu, K. Hayashi, T. Oguti, and Y. Kiyama (1996); Auroral
        observations using automatic optical instruments: Relations with multiple Pi 2 magnetic
        pulsations, J. Geomag. Geoelectr., 48, 1407-1420.
      43. Angelopoulos, V., T.D. Phan, D.E. Larson, F.S. Mozer, R.P. Ln, K. Turuda, H.
        Hayakawa, S. Kokubun, T. Yamamoto, D.J. Williams, R.W. McEntire, R.P. Lepping,
        G.K. Parks, M. Brittacher, G. Germany, J. Spann, H.J. Singer, and K. Yumoto (1997);
        Magnetotail flow bursts assocation to global magnetospheric circulation, relationship to
        ionospheric activity and direct evidence for localization, Geophys. Res. Lett., 24, No.19,
        2271-2274.
      44. Araki, T., S. Fujitani, M., Emoto, K. Yumoto, K. Shiokawa, T. Ichinose, H. Luhr, D.
        Orr, D.K. Milling, H. Singer, G. Rostoker, S. Tsunomura, Y. Yamada, and C.F. Liu
        (1997); Anomalous sudden commencement on March 24, 1991, J._Geophys._Res., 102,
        A7, 14075-14086.
      45. Baishev, D.G., K. Yumoto, S.I.. Solovyev, N.E. Molochushkin and E.S. Barkova
        (1997); Variations of magnetic field in an appearance period of large-scale diffuse luminosity
        waves in the evening sector during magnetic storm, Geomag._and_Aeronomy, 37, No.6,
        39-46.
      46. Itonaga, M., A. Yoshikawa, and K. Yumoto (1997); One-dimensional transient response of
        the inner magnetosphere at the magnetic equator, 1. Transfer function and poles, J.
        Geopmag. Geoelectr., 49, 21-48.
      47. Itonaga, M., A. Yoshikawa, and K. Yumoto (1997); One-dimensional transient response of
        the inner magnetosphere at the magnetic equator, 2. Analysis of waveforms, J. Geopmag.
        Geoelectr., 49, 49-68.
      48. Matsuoka, H., K. Takahashi, S. Kokubun, K. Yumoto, T. Yamamoto, S.I. Solovyev, and
        E.F. Vershinin (1997); Phase and amplitude structure of Pc 3 magnetic pulsations as
        determined from multipoint observations, J._Geophys._Res., 102, A2, 2391-2404..
      49. McPherron, R.L. R. Nakamura, S. Kokubun, Y. Kamide, K. Shiokawa, K. Yumoto, T.
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      134. Hobara, Y., H.C. Koons, J.L. Roeder, K. Yumoto and M. Hayakawa (2004); Characteristics of ULF
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      135. Huang Chao-Song, J. C. Foster, L. P. Goncharenko, G. D. Reeves, J.L. Chau, K. Yumoto, and K.
        Kitamura (2004); Variations of low-latitude geomagnetic fields and Dst caused by magnetospheric
        substorms, J. Geophys. Res., 109, A05219, 1-14, doi:10.1029/2003JA010334.
      136. Le Guan, S.-H. Chen, Y. Zheng, C. T. Russell, J. A. Slavin, C. Huang, S. M. Petrinec, T. E. Moore.,
        J. Samson, H. J. Singer., J. D. Scudder., and K. Yumoto (2004); Coordinated polar spacecraft,
        geosynchronous spacecraft, and ground-based observations of magnetopause processes and their
        coupling to the ionosphere, Annales Geophysicae, 22:4329-4350.
      137. Lee, D.-Y., L.R. Lyons, and K. Yumoto (2004); Sawtooth oscillations directly driven by solar wind
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      138. Motoba, T., T. Kikuchi, T. F. Shibata, and K. Yumoto (2004), HF Doppler oscillations in the low-
        latitude ionosphere coherent with equatorial long-period geomagnetic field oscillations, J.
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        Mukai (2004), Tail dynamics during the growth phase of the November 24, 1996, substorm event:
        Near-earth reconnection confined in the plasma sheet, J. Geophys. Res., Vol. 109, A05211, 1-10,
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      140. Pilipenko V.A., E.Fedorov, M.J. Engebretson, and K. Yumoto (2004); Energy budget of Alfven
        wave interactions with the auroral acceleration region, J. Geophys. Res., Vol. 109, A10204,
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      141. Solovyev S.I., A.V. Moiseyev, M. Engebretson, and K. Yumoto (2004); Sudden geomagnetic
        impulse generation: Effect of variations in ionospheric conductivity, Geomagnetism and
        Aeronomy, 44(4): pp. 413-422.
      142. Tanaka, Y.-M., K. Yumoto, A. Yoshikawa, M. Shinohara, H. Kawano, T.-I. Kitamura (2004); Longitudinal structure of Pc 3 pulsations on the ground near the magnetic equator, J. Geophsy. Res., Vol.109, A0321, doi.10.1029/2003JA009903, 1-10.
      143. Tsurutani B. T., A. Mannucci, B. Iijima, M. A. Abdu, J. H. A. Sobral, W. D., Gonzalez, F. L.
        Guarnieri, T. Tsuda, A. Saito, K. Yumoto, B. G. Fejer, T. Fuller Rowell, J. U. O. Kozyra, J. C.
        Foster and A. Coster, V. M. Vasyliunas (2004); Global dayside ionospheric uplift and enhancement
        associated with interplanetary electric fields, J. Geophys. Res., Vol. 109, A08302,
        doi:10.1029/2003JA010342, 1-16.
      144. Uozumi, T. K. Yumoto, H. Kawano, A. Yoshikawa, S. Ohtani, J. V. Olson, S.-I. Akasofu, S. I.
        Solovyev6, E. F. Vershinin, K. Liou, and C.-I. Meng (2004); Propagation characteristics of Pi 2 
        magnetic pulsations observed at ground high-latitudes, J. Geophys. Res., 109, A08203,
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      145. Volwerk M., K.-H. Glassmeier, A. Runov, R. Nakamura, W. Baumjohann, B. Klecker, I. Richter , A. Balogh, H. R`eme and K.Yumoto (2004); Flow burst induced large scale plasmasheet oscillation, J. Geophys. Res., Vol. 109, A11208, doi:10.1029/2004JA010533.
      146. Yamaguchi, R., H. Kawano, S. Ohtani, K. Yumoto, S. Kokubun, and The Circum-pan Pacific
        Magnetometer Network Group (2004); Total pressure variations in the magnetotail as a function of
        the position and the substorm magnitude, J. Geophys. Res., Vol. 109, A03206, doi: 10,1029/
        2003JA010196.
      147. Huang, Chao-Song, Geoff D. Reeves, Guan Le, and K. Yumoto (2005); Are sawtooth oscillations of energetic plasma particle fluxes caused by periodic substorms or driven by by solar wind pressure enhancements ?, J. Geophys. Res., Vol. 110, No. A7, A07207, doi:10.1029/2005JA011018, 1-19.
      148. Kim, K.-H., K. Takahashi, D.-H. Lee, P. R. Sutclife, and k. Yumoto (2005); Pi 2 pulsations associated with poleward boundary intensifications during the absence of substorms, J. Geophys. Res., Vol. 110, No.A1, A01217, doi.org/10.1029/2004 JA010780, 1-15,
      149. Kim, K.-H, D.-H. Lee, R.-E. Denton, K. Takahashi, J. Goldstein, Y.-J. Moon, K. Yumoto, , Y.-S. Pyo, and A. Keiling (2005); Pi 2 pulsations in a small and strongly asymmetric plasmasphere, J. Geophys. Res., Vol. 110, A10, A10201, doi:10.1029/2005JA011179, 1-9.
      150. Kim, K.-H, D.-H. Lee, K. Takahashi, C.T. Russell, Y.-J. Moon, and K. Yumoto, (2005); Pi 2 pulsations observed from the Polar satellite outside the plasmapause, Geophys. Res. Lett., Vol. 32, No.18, L18102, doi:10.1029/2005GL023872, 1-4.
      151. Kitamura, K., H. Kawano, S.-I. Ohtani, A. Yoshikawa and K. Yumoto (2005); Local-time distribution of low and middle latitude ground magnetic disturbances at sawtoot injections of April 18-19, 2002, J. Geophys. Res., Vol. 110, No. A7, A07208, doi:101029/2004JA011179, 1-11.
      152. Murata K.T., K. Yamamoto, D. Matsuoka, E. Kimura, H. Matsumoto, M. Okada, T. Mukai, J. B. Sigwarth, S. Fujita, T. Tanaka, K. Yumoto, T. Ogino, K. Shiokawa, N.A. Tsyganenk, J. L. Green and T. Nagai (2005); Department of the Virtural Earth's Magnetosphere Shstem(VEMS), Advances in Polar Upper Atmosphere Researc, No.19, 135-151.
      153. Obana, Y., A. Yoshikawa, J. V. Olson, R. J. Morris, B. J. Fraser, and K. Yumoto (2005); North?South asymmetry of the amplitudes of high-latitude Pc 3-5 pulsations: Observations at conjugate stations, J. Geophys. Res., Vol. 110, No. A10, A10214, doi:10.1029/2003JA010242, 1-9.
      154. Pilipenko, V.A., N. Mazur, E. Fedrov, T. Uozumi and K. Yumoto (2005); Excaitation of Alfven impulse by the anomalous resistance onset on the auroral field lines, Annales Geophysicae, Vol. 23, 1455-1465.
      155. Shi, Y., E. Zesta, L. R. Lyons, A. Boudouridis , K. Yumoto and K. Kitamura (2005); Effect of solar wind pressure enhancements on storm time ring current asymmetry, J. Geophys. Res., Vol. 110, A10, A10205, doi:10.1029/2005JA011019, 1-19.
      156. Shiokawa, K., K. Yago, K. Yumoto, D.G. Baishev, S.I. Solovyev, F.J. Rich, and S. B. Mende (2005); Ground and satellite observations of substorm onset arcs, J. Geophys. Res., Vol.110, A12225, doi:10.1029/2005JA011281, 1-10.
      157. Solovyev S.I., A.V. Moiseyev, M. Engebretson, and K. Yumoto (2005); Effect of the IMF orientation on formation and propagation of geomagnetic sudden impulse, Geomagnetism and Aeronomy, 45(3): pp. 350-362.
      158. Takahashi, K., L. Kan, K. Yumoto, K. Kitamura, and M. Nose (2005); Source of Pc 4 pulsations observed on the nightside, J. Geophys. Res., Vol. 110, A12207, doi:10.1029/2005JA011093, 1-15.
      159. Yago, K. Shiokawa, H. Hayashi, and K. Yumoto (2005); Auroral particles associated with a substorm brightening arc, Geophys. Res. Lett., Vol.32, L06104, doi:10.1029/2004GL021894, 1-4.
      160. Abe, S., H. Kawano, J. Goldstein, S. Ohtani, S.I. Solovyev, D.G. Baishev, and K. Yumoto (2006); Simultaneous identification of plasmaspheric plume by a ground magnetometer pair and IMAGE EUV, J. Geophys. Res., Vol. 111, A11202, doi:10.1029/2006JA011653, 1-9.
      161. Anderson, D., A. Anghel, J.L. Chau, and K. Yumoto (2006); Global, low-latitude, vertical E x B drift velocities inferred from daytime magnetometer observations, Space Weather, Vol. 4, S08003, 1-9.
      162. Anderson, D., A. Anghel, J. Chau, K. Yumoto, A. Bhattacharyya and S. Alex (2006), Daytime, low latitude, vertical ExB drift velocities, inferred from ground-based magnetometer observations in the Peruvian, Philippine and Indian longitude sectors under quiet and disturbed conditions, Solar Influence on the Heliosphere and Earth's Environment: Recent Progress and Prospects, Edited by N. Gopalswamy and A. Bhattacharyya, ISBN-81-87099-40-2,, pp. 389-394.
      163. Huang Chao-Song and Kiyohumi Yumoto (2006); Quantification and hemispheric asymmetry of low-latitude geomagnetic disturbances caused by solar wind pressure enhancements, J. Geophys. Res., Vol. 111, A09316, doi: 10.1029/2006 JA011831, 1-11.
      164. Liu, J.Y., C.H. Chen, Y.I. Chen, H.Y. Yen, K. Hattori and K. Yumoto (2006); Seismo-geomagnetic anomalies and M> 5.0 earthquakes observed in Taiwan during 1988-2001, Physics and Chemistry of the Earth, 31, 215-222.
      165. Nishino, M, K. Makita., K. Yumoto, Y. Miyoshi, N. J. Schuch, and M.A. Abdu (2006), Energetic particle precipitation in the Brazilian geomagnetic anomaly during the "Bastille Day stor" of July 2000, Earth Planets Space, 58, 607-616.
      166. Rastogi, R.G., and K. Yumoto (2006); Equatorial electrojet in the East Brazil anomaly region, Earth Planets Space, 58 (No.2), 103-106.
      167. Sastri J. H., K. Yumoto, J. V. S. V. Rao and R. Subbiah (2006); On the nature of response of dayside equatorial geomagnetic H-field to sudden magnetospheric compressions, J. Atmos. Solar-Terr. Phys., 68, 1642-1652.
      168. Shi Y., E. Zesta, L. R. Lyons, K. Yumoto, and K. Kitamura (2006); Statistical study of effect of solar wind dynamic pressure enhancements on dawn-to-dusk ring current asymmetry, J. Geophys. Res., Vol. 111, A10216, doi:10.1029/ 2005JA011532, 2006, 1-11.
      169. Shiokawa, K., K. Seki, Y. Miyoshi, A. Ieda, T. Ono, M. Iizima, T. Nagatsuma, T. Obara, T. Takashima, K. Asamura, Y. Kasaba, A. Matsuoka, Y. Saito, H. Saito, M. Hirahara, Y. Tonegawa, F. Toyama, M. Tanaka, M. Nose, Y. Kasahara, K. Yumoto, H. Kawano, A. Yoshikawa, Y. Ebihara, A. Yukimatsu, and the Inner Magnetosphere Subgroup (2006); ERG -- A small-satellite mission to investigate the dynamics of the inner magnetosphere, Advances in Space Research, 38, 1861-1869.
      170. Takasaki, S., H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iijima, Y. Obana, N. Sato and K. Yumoto (2006); A significant mass density increase during a large magnetic storm in October 2003 obtained by ground-based ULF observations at L < 1.4, Earth Planets Space, 58, 617-622.
      171. Tsurutani, B.T., A. Saito, O.P. Verkhoglyadova, A.J. Mannucci, M.A. Abdu, T. Araki, W.D. Gonzalez, B.A.Iijima, G.S. Lakhina, H. McCrreadie, J.H.A. Soral, T. Tsuda, K. Yumoto, and V.M. Yasyliunas (2006), The dayside ionospheric "Superfountain" (DIS), plasma transport and other consequences, Solar Influence on the Heliosphere and Earth's Environment: Recent Progress and Prospects, Edited by N. Gopalswamy and A. Bhattacharyya, ISBN-81-87099-40-2, pp. 384-388.
      172. Anghel, A., D. Anderson, N. Maruyama, J. Chau, K. Yumoto, A. Bhattacharyya, S. Alex (2007); Interplanetary electric fields and their relationship to low-latitude electric fields under disturbed conditions, J. Atmos. Solar-Terre. Phys., 69, 1147-1159.
      173. Bencze P., B. Heilig, B. Zieger, J. Szendroi, J. Vero, H. Luhr, K. Yumoto, Y. Tanaka, and J. Strestik (2007); Effect of the August 11, 1999 total solar eclipse on geomagnetic pulsations, Acta Geod. Geoph. Hung, Vol. 42(1), 23-58.
      174. Han D.S., Yang H.G., Chen Z.T., Araki T., Dunlop M.W., Nose M., Iyemori T., Li Q., Gao Y.F. and Yumoto K. (2007): Coupling of perturbations in the solar wind density to global Pi3 pulsations: A case study: J. Geophys. Res.. Vol.112( A5): A05217
      175. Kozyreva, O.V., V.A. Pilipenko, M.J. Engebretson, K. Yumoto, J. Watermann, and N. Romanova (2007); In search of a new ULF wave index: Comparison of Pc5 power with dynamics of geostationary relativistic electrons, Planet. Space Sci., 55, 755-769.
      176. Kulesh, M, M. Nose, M. Holschneider and K. Yumoto (2007); Polarization analysis of a Pi 2 pulsation using continuous wavelet transform, Earth Planets Space, 59, No.8, 961-970.
      177. Morioka, A., Y. Miyoshi, F. Tsuchiya, H. Misawa, T. Sakanoi, K. Yumoto, R.R. Anderson, J.D. Menietti, and E.F. Donovan (2007); Dual structure of auroral acceleration regions at substorm onsets as derived from AKR spectra, J. Geophys. Res., Vol.112, A06245, doi:10.1029/2006JA012186
      178. Rastogi R.G. and K. Yumoto (2007): Equatorial electrojet in the East Brazil anomaly region, Earth Planet Space, 59, No.2, 103-106
      179. Tanaka Y-M., Yumoto K., Yoshikawa A., Itonaga M., Shinohara M., Takasaki S. and Fraser B.J. (2007): Horizontal amplitude and phase structure of low-latitude Pc3 pulsations around the dawn terminator: J. Geophys. Res. 112(A11): A11308.
      180. Tokunaga, T., H. Kohta, A. Yoshikawa, T. Uozumi, and K. Yumoto (2007); Global features of Pi 2 pulsations obtained by Independent Component Analysis, Geophys. Res. Lrtt., Vol. 34,L14106, doi:10.1029/2007GL030174
      181. Tsurutani, B.T., O.P. Verkhoglyadova, A.J. Mannucci, T. Araki, A. Sato, T. Tsuda, and K. Yumoto (2007); Oxygen ion uplift and satellite drag effects during the 30 October 2003 daytime superfountain event, Ann. Geophys., 25, 569-574.
      182. Uozumi, T., H. Kawano, A. Yoshikawa, M. Itonag, and K. Yumoto (2007); Pi 2 source region in the magnetosphere deduced from CPMN data, Planet. Space Sci., 55, 849-857, doi:10.1016/j.pss. 2006.03.01.
      183. Yago, K., K. Shiokawa, K. Yumoto, D. G. Baishev, S.I. Solovyev, and F.J. Rich (2007); Simultaneous DMSP, all-sky camera, and IMAGE FUV observations of a substorm brightening arc at a substorm pseudo-breakup, Earth Planets Space, 59, 45-49
      184. Yagova N., V. Pilipenko, J. Watermann, and K. Yumoto (2007); Control of high latitude geomagnetic fluctuations by interplanetary parameters: A role of suprathermal ions, Annales Geophysicae, 25, No.4, 1037-1047
      185. Baishev D.G., G.V. Borisov, V.A. Velichko, S.N. Samsonov, and K. Yumoto (2008); Variations in the geomagnetic field and auroras during the main phase of a large magnetic storm of November 20, 2003, Geomagnetism and Aeronomy, 48, N0.2, 201-208.
      186. Chen, C.H., J.Y. Liu, K. Yumoto, C.H. Lin, and T.W. Fang (2008); Equatorial ionization anomaly of the total electron content and equatorial electrojet of ground-based geomagnetic field strength, J. Atmos. Solar-Terre. Phys., 70, 2171-2183.
      187. Huang C-S, K. Yumoto, S. Abe and G. Sofka (2008): Low-latitude ionospheric electric and magnetic field disturbances in response to solar wind pressure enhancements, J. Geophys. Res., in press.
      188. Kepko, L., J. Raeder, V. Angelopoulos, J. McFadden, D. Larson, H.U. Auster, W. Magnes, H.U. Frey, C. Carlson, M. Henderson, S.B. Mende, K. Yumoto, H.J. Singer, G. Parks, I. Mann, C.T. Russell, E. Donovan, and R. McPherron (2008); Highly periodic stormtime activations observed by THEMIS prior to substorm onset, Geophys. Res. Lett., Vol. 35, L17S24, doi: 10.1029/2008GL034235, p.5.
      189. Kitamura, M., K. Sekiguchi, K. Yumoto, and H.J. Haubold (2008); Third UN/ESA/NASA Workshop on the International Heliophysical Year 2007 and Basic Space Science, Earth Moon Planet, doi 10.1007/s11038-008-9276-5.
      190. Li, Guozhu, Baiqi Ning, Biqiang Zhao, Libo Liu, J.Y. Liu, K. Yumoto (2008); Effects of geomagnetic storm on GPS ionospheric scintillations at Sanya, J. Atmos. Solar-Terre. Phys., 70, 1034-1045.
      191. Liou K., K. Takahashi, P.T. Newell and K. Yumoto (2008): Polar Ultraviolet Imager observations of solar wind-driven ULF auroral pulsations: Geophys. Res. Let., Vol. 35., L16101, doi: 10,1029/2008GL034953, 2008, p.5.
      192. Morioka, A., Y. Miyoshi, F. Tsuchiya, H. Misawa, K. Yumoto, G. K. Parks, R. R. Anderson, J. D. Menietti, E. F. Donovan, F. Honary, and E. Spanswick (2008), AKR breakup and auroral particle acceleration at substorm onset, J. Geophys. Res., VOL. 113, A09213, doi:10.1029/2008JA013322, 1-14.
      193. Nakajima A., K. Shiokawa, K. Seki, J.P. McFadden, C.W. Carlson, R.J. Strangeway and K. Yumoto (2008): Particle and field characteristics of broadband electrons observed by the FAST satellite during geomagnetic storms: A multievent study, J. Geophys. Res. 113(A06): A06221, doi:10.1029/2007JA013001.
      194. Rastogi R.G., H. Chandra, M.E. James, Kentarou Kitamura and K. Yumoto (2008): Characteristics of the Equatorial Electrojet current in Central South America, Earth Planets Space, in press.
      195. Sastri J.H., Yumoto K., Rao J.V., and Ikeda A (2008): Summer-winter hemisphere asymmetry of the preliminary reverse impulse of geomagnetic storm sudden commencements at midlatitudes: J. Geophys. Res., ., Vol.113, A05302, 2007JA012968.
      196. Tsurutani B.T., Verkhoglyadova O.P., Mannucci A.J., Saito A., Araki T., Yumoto K., Tsuda T., Abdu M.A., Sobral J.H.A., Gonzalez W.D., McCreadie H., Lakhina G.S., Vasyliunas V.M. (2008): Prompt Penetration Electric Fields (PPEFs) and Their Ionospheric Effects During the Great Magnetic Storm of October 30-31, 2003: J. Geophys. Res., Vol.113, A05311, doi:10.1029/2007JA012879
      197. Uozumi, T., K. Yumoto, K. Kitamura, S. Abe, Y. Kakinami, M. Shinohara, A. Yoshikawa, H. Kawano, T. Ueno, T. Tokunaga, and the MAGDAS Group (2008): A new index to monitor temporal and long-term variations of the Equatorial Electrojet by MAGDAS/CPMN real-time data: EE-Index, Earth Planets Space, 59, in press.
      198. Volwerk, M., R. Nakamura, W. Baumjohann, T. Uozumi, K. Yumoto, and A. Balogh (2008); Tailward propagation of Pi 2 waves in the Earth's magnetotail lobe, Ann. Geophys., 26, 4023-4030.
      199. Fujimoto, A., T. Ueno, and K. Yumoto (2009); A science mission for QSAT project: Study of FACs in the polar and equatorial regions, Earth Moon Planet, doi 10.1007/s11038-008-9291-6, in press.
      200. Maeda, G., K. Yumoto and the MAGDAS Group (2009); Progress report on the deployment of MAGDAS, Earth Moon Planet, doi 10.1007/s11038-008-9284-5.
      201. Maeda, N., S. Takasaki, H. Kawano, S. Ohtani, P. M. E. Decreau, J. G.Trotignon, S. I. Solovyev, D. G. Baishev, and K. Yumoto (2009), Simultaneous observations of the plasma density on the same field line by the CPMN ground magnetometers and the Cluster satellites, Advances in Space Research (J. Adv. Space Res.), 43, doi:10.1016/j.asr.2008.04.016, p.265-272.
      202. Morioka, A., Y. Miyoshi, F. Tsuchiya, H. Misawa, K. Yumoto, G.K. Parks, R.R. Anderson, J.D. Menietti, and F. Honary (2009); Vertical evolution of auroral acceleration at substorm onset, Ann. Geophys., 27, in press.
      203. Otadoy, R.E.S., D. McNamara, K. Yumoto, and MAGDAS group (2009); Proposal to use theMAGnetic Acquisition System(MAGDAS) of the Circum Pan-Pacific Magnetometer Network (CPMN) to study the equatorial electrojet: A Philippine contribution to the International Heliophysical Year, Earth Moon Planet, doi 10.1007/s11038-008-9271-x, in press.
      204. Rabiu, A.B., I.A. Adimula, K. Yumoto, J.O. Adeniyi, G. Maeda, and MAGDAS/CPMN project group (2009); Preliminary results from the magnetic field measurements using MAGDAS at Ilorin, Nigeria, Earth Moon Planet, doi 10.1007/s11038-008-9290-7.
      205. Sahai,Y., F. Becker-Guedes, P. R. Fagundes, R. de Jesus, A. J. de Abreu, Y. Otsuka, K. Shiokawa, K. Igarashi, K. Yumoto, C.-S. Huang, H. T. Lan, A. Saito, F. L. Guarnieri, V. G. Pillat, and J. A. Bittencourt (2009); Effects observed in the ionospheric F region in the east Asian sector during the intense geomagnetic disturbances in the early part of November 2004, J. Geophys. Res., 114, doi:10.1029/2008JA013053, 2009, p. 1-11.
      206. Saroso, S., K. Hattori, H. Ishikawa, Y. Ida, R. Shirogane, M. Hayakawa, K. Yumoto, K. Shiokawa and M. Nishihashi (2009); ULF geomagnetic anomalous changes possibly associated with 2004-2005 Sumatra earthquakes, Physics and Chemistry of the Earth (J. Phys. Chem. Earth), doi:10.1016/j.pce.2008.10.065, in press.
      207. Tsuruda, Y., A. Fujimoto, N. Kurahara, K. Yumoto, T. Hanada, and M. Cho (2009): QSAT the satellite for polar plasma observation, Earth Moon Planet, doi 10.1007/s11038-008-9281-8.
      208. Zhao, B., W. Wan, L. Liu, K. Igarashi, K. Yumoto, B. Ning (2009); Ionospheric response to the geomagnetic storm on 13-17 April 2006 in the West Pacific region, J. Atmos. Solar-Terre. Phys., 71, in press.
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        (1988); Pc 3 magnetic pulsations observed at very low latitudes (20o), Proc._NIPR_Symp.
        Upper_Atmos._Phys., 1, 121-129.
      12. Yumoto, K., T. Saito, Y. Tanaka, K.J.W. Lynn, F.W. Menk, and B.J. Fraser (1988);
        Characteristics of Pc 3 magnetic pulsations in conjugate area around L = 1.3-2.1,
        Proc._NIPR_Symp._Upper_Atmos._Phys., 1, 130-144.
      13. Yumoto, K., K. Takahashi, T. Saito, F.W. Menk, B.J. Fraser, and Y. Tanaka (1989);
        Low-latitude Pi1-2 magnetic pulsations of August 28, 1986 substorm event, Proc._NIPR
        Symp. Upper_Atmos._Phys., 2, 25-37.
      14. Yumoto, K., and K. Takahashi (1989); Relation between Pi 2 magnetic pulsations at L =
        1.3-2.1 and dipolarizations at AMPTE/CCE, Proc._NIPR_Symp._Upper_Atmos._Phys.,
        2, 38-46.
      15. Yumoto, K. (1989); Magnetospheric cavity resonance waves associated with substorm,
        Proc._Japan_Acad., 65, Ser. B, 53-56.
      16. Yumoto, K., K. Takahashi, T. Ogawa, S. Tsunomura, T. Nagai, T. Watanabe, and T.
        Saito (1989); Relationships between sc- and si-associated ULF waves and ionospheric HF
        Doppler oscillations during the great geomagnetic storm of February 1986, Proc_Res.
        Inst._Atmos., Nagoya_Univ., 36, No. 2, 107-114.
      17. Yumoto, K., S. Watanabe, and H. Oya (1990); MHD responses of a model magnetosphere
        to magnetopause perturbations, Proc._Res._Inst. Atmos.,_Nagoya_Univ., 37, 17-36.
      18. Yumoto, K., Y. Tanaka, Y. Yoshimura, B.J. Fraser and F.W. Menk (1991); Wave
        characteristics of low-latitude Pc 3 magnetic pulsations observe along 210o magnetic
        meridian, Proc._of_Pacific_Regional STEP_Conference, held at Taipei on April 10-12,
        1991, 60-63.
      19. Yumoto, K., Y. Tanaka, T. Oguti, and K. Shiokawa (1991); Globally coordinated magnetic
        observations along 210o magnetic meridian during STEP period, STER_in_Japan, 15,
        100-105.
      20. Yumoto, K (1991); Pi 2 and substorms, Chikyu, 13, No.12, 782-785 (in Japanese).
      21. Yumoto, K., Y. Tanaka, T. Oguti, and K. Shiokawa, B.J. Fraser, F.W. Menk, J.W. Lynn
        and M. Seto (1992); Globally coordinated magnetic observations along 210o magnetic
        meridian during STEP period, Proc._of_South_Pacific_STEP_Workshop/AIP 10th
        Physics_Conference, held at Melbourne on Feb. 10-12, 1992, pp. 1-4.
      22. Yumoto, K. (1992); Geophysical induction currents, Kaiyoh, 24, No. 7, 430-433 (in
        Japanese).
      23. Yumoto, K., Y. Tanaka, T. Oguti, K. Shiokawa, B.J. Fraser, F.W. Menk, L.W. Lynn,
        M.Seto, and 210o MM Magnetic Observation Group (1992); Globally coordinated magnetic
        observations along 210o magnetic meridian during STEP period: Preliminary results,
        Proc._of_Conductivity_Anomaly, 203-208.
      24. Yumoto, K. and 210o MM Magnetic Observation Group (1993); Collaborative
        magnetic observations along the 210o magnetic meridian, Proc._of_United_Nations/
        Indonesian Regional_Conference_on_Space Science_and_Technology_for_Sustainable
        Development, held at Bandung, Indonesia, on May 17-21, 1993, in press.
      25. Yumoto, K., and H. Utada (1993); Geophysical study of western Pacific region by means
        of undersea cables and magnetometer network, Proc._of_Conductivity_Anomaly, 229-245.
      26. Yumoto, K., K. Shiokawa, Y. Tanaka, S. Kokubun, M. Seto, T. Sakurai, T. Takahashi,
        S. Tsunomura, F.W. Menk, K.J.W. Lynn, L. Corbett, J.A. Kennewell, A.W. Green, P.
        Hattori, M. Blackford, D. Yeboah-Amankwah, S.L. Manurung, E.F. Vershinin, V.F.
        Osinin, G. Krymskij, S.I. Solovyev, V.A. Pilipenko, and Ray J, Morris (1993); Daily
        magnetograms: (STEP) 210o MM network, STER_in_Japan, 17, 45-53.
      27. Yumoto, K. and 210o Magnetic Meridian Observation group (1994); Collaborative GB
        magnetometer observations along 210o and 250o magnetic meridians, COSPAR_Colloquia
        Ser.5 on_Solar_Terrestrial_Energy_Program, edited by D.N. Baker, V.O. Patitashvili,
        M.J. Teague, Pergamon Press, pp.639-642.
      28. Yumoto, K. (1994); Characteristics variations observed at 210 degree magnetic meridian
        chain stations, Proc._of_SCOSTEP_8th_Internal. Symp._on_Solar_Terrestrial_Physics,
        held at Sendai, Japan, June 5-10, p. 70.
      29. Yumoto, K., S. Solovyev, D. Baisshev, N. Molochushkin, G. Makarov, A. Sobolev, V.
        Soloveyev, E. Vershinin and V. Osinin (1994); Variations of geomagnetic pulsation
        parameters of Pc 1-2and IPDP and their relationships with Pi 2 and Pc 5 during magnetic
        substorms, Proc._of SCOSTEP_8th_Internal._Symp._on_Solar_Terrestrial_Physics,
        held at Sendai, Japan, June 5-10, p. 112.
      30. Yumoto, K., G. Makarov, D. Baishev, N. Molochushkin, A. Sobolev, S. Solovyev, and
        V. Solovyev (1994); Some manifestations of ssc in the auroral zone at the 210o deg
        magnetic meridian chain stations, Proc._of_SCOSTEP_8th_Internal._Symp._on Solar
        Terrestrial_Physics, held at Sendai, Japan, June 5-10, p. 115.
      31. Yumoto, K., H. Matsuoka, K. Shiokawa, Y. Tanaka, T. Kitamura, S.I. Solovyev, N.
        Molochuskin, E.F. Vershinin, V.F. Osinin, S.L. Manurung, Obay Sobari, Mamat
        Ruhimat, Ray J. Morris, B.J. Fraser, F.W. Menk, J.V. Olson, S.-I. Akasofu, and 210o
        MM Magnetic Observation Group (1995); Northern- and southern-hemisphere asymmetry
        of sc and si magnetic variations observed along 210゜ magnetic meridian, Proc. of
        the_ninth_Intl._Symp._on_Equatorial_Aeronomy_(ISEA),_Including_the Middle
        Atmosphere, held at Bali, Indonesia, on March 20-24, pp. - .
      32. Yumoto, K., E.F. Vershinin, A.V. Buzevich, K. Saita and Y. Tanaka (1998); Relationships
        among seismc activity, atmospheric electric field, electromagnetic emissions and local
        magnetic activity in Kamchatka, Mem. Fac. Sci., Kyushu Univ., 30, No.1, 15-22.
      33. Yumoto, K., H. Utada, and Y. Hamano (1999); Geomagnetically induced currents in the
        western Pacific region during February 8-9, 1992 magnetic storm, Mem. Fac. Sci., Kyushu
        Univ., 30, No.3, 111-118.
      34. Yumoto, K., and the CPMN group (2003); Space weather study in Kyushu university, Proc. Of the
        Intl. Symp. On Information Science and electrical Engineering 2003(ISEE 2003), held at ACROS
        Fukuoka, Japan, Nov. 13-14, pp. 110-113.
      35. Yumoto, K. (2005); Monitoring of geophysical electromagnetic environment for space weather study-a review, Mem. Fac. Sci., Kyushu Univ., Ser. D, Earth & Planet. Sci., Vol.XXXI, No. 3, 81-91.
      36. Yumoto, K.(2005); Magnetic environment in geospace, IEEJ Trans. FM, Vol. 125, No. 2, 77-80.
      37. 湯元清文(2005); 宇宙天気における宙空ダイナミクス、学術月報, Vol.58, No. 3, 210-217.
      38. 湯元清文(2006); 若手研究者への手紙?自然科学を目指す若手研究者へのメッセージ, 学術月
        報, Vol. 59, No. 9, 666-667.
      39. Yumoto, K. and STPP Sub-committee (2007), IHY Asia/Pacific regional planning, Proc. of Intl.
        Symp. on Asian Collaboration in IPY 2007-2008, held at Tokyo on March 1at, 2007, 59-61.
      40. Yumoto, K. and STPP Sub-committee (2007), IHY activity in Japan, Proc. of CAWSES/IHY Symp., held at Nagoya on March 14-16, 2007, pp. 1-2.
      41. Yumoto, K. and the MAGDAS Group (2007), Space weather activities at SERC, Proc. of CAWSES/IHY Symp., held at Nagoya on March 14-16, 2007, pp. 1-2.
      42. Yumoto K., S. Ikemoto, M. G. Cardinal, H. Kawano, A. Yoshikawa, G. Maeda, M. Hayakawa, K. Hattori, J. Y. Liu, S. Saroso, M. Husni, D. S. Widrto, E. G. Ramos, R. E. S. Otadoy, and MAGDAS Group (2007): Space Weather and Seismo-Electromagnetics, submitted to Proc. of Bilateral Seminar Italy-Japan on Electromagnetics in Seismic and Volcanic Area, Jul. 25-27, Chiba, Japan
      43. Yumoto K., M.G. Cardinal and MAGDAS Group (2007) : MAGDAS Project for Monitoring Space and Lithosphere Weather, submitted to Proc. of the IV International Conference "Solar-Terrestrial bonds and earthquake precursors", Aug.14-17, in Paratunka, Russia
      44. 湯元清文(2008)、日本における国際太陽系観測年、月刊地球特集号IGY+50-過去から未来へ-、号外No.58、P5-12
      45. 湯元清文(2008)、宇宙天気研究のためのMAGDASプロジェクト、月刊地球特集号IGY+50-過去から未来へ-、号外No.58、P58-68
    • Co-author's(85)
      1. Saito, T., K. Yumoto, K. Takahashi, T. Tamura, and T. Sakurai (1979); Solar wind control
        of Pc 3, Magnetospheric_Study_1979,_Proc._International_Workshop_on_Selected_Topics
        of_Magnetospheric_Physics, held at Tokyo, on March 13-16, 1979, pp.155-159.
      2. Saito, T., K. Yumoto, and T. Tamura (1979); Roles of the solar wind and the plasmasphere
        on geomagnetic Pc 3 and Pi 2 pulsations, Proc. Japanese_IMS_Symp., pp.11-18.
      3. Aoyama, I., F. Toyama, T. Takahashi, T. Sakurai, Y. Tonegawa, T. Saito, and K. Yumoto
        (1979); The field-aligned currents observed by JIKIKEN, Proc._Japanese_IMS_Symp.,
        pp.126-132.
      4. Saito, T., K. Yumoto, I. Aoyama, F. Toyama, T. Sakurai, T. Takahashi, and Y. Tonegawa
        (1979); A long-period Pi 2 associated with a mini-substorm observed by the Japanese satellite
        "Jikiken", Proc._Japanese_IMS_Symp., pp.133-138.
      5. Saito, T., K. Yumoto, I. Aoyama, and Y. Kamide (1980); Two long-period Pi 2 events
        during IMS being associated with mini-substorms, Highlights_of_the_Japanese_IMS
        program, 180-190.
      6. Saito, T., and K. Yumoto (1980); Examination of the odd mode model of Pi 2 based on an
        analysis of ULF signals received at the Syowa station, Antarctic_Record, 68, 276-281.
      7. Saito, T., K. Yumoto, and T. Tamura (1980); Non-seasonal annual variation in the period of
        Pc 5 observed at the Syowa station, Antarctic Record, 68, 282-292.
      8. Saito, T., T. Sakurai, K. Yumoto, T. Tamura, M. Seto, and T. Hayakawa (1980);
        Magnetometers for geophysical use, Part 1, Fluxgate magnetometer with a 50-cm length
        two-core sensor, Sci._Rept._Tohoku Univ.,_Ser._5, Geophys., 27, 85-93.
      9. Saito, T., K. Yumoto, I. Aoyama, and Y.Kamide (1981); A sequential study on three
        long-period Pi 2 events associated with mini-substorms, Mem._Natl._Inst._Polar_Res.,,
        Tokyo, Spec. Issue No. 18, 179-188.
      10. Saito, T., K. Yumoto, M. Seto, K.D. Cole, P. Dyson, J. Ward, and B. Gibson-Wild
        (1984); Low-latitude conjugate ULF observation by rulfmeters, Mem._Natl._Inst.
        Polar_Res., Tokyo, Spec. Issue No. 31, 52-62.
      11. Saito, T., K. Yumoto, and T. Tamura (1985); Diagnostics of the heliosphere by means
        of ground-based ULF observations, Mem._Natl._Inst. Polar_Res., Tokyo, Spec. Issue No.
        36, 64-72.
      12. Saito, T., K. Yumoto, K. Hirao, T. Nakagawa, and K. Saito (1986); Quasi-parallel model f
        or comet Halley near the encounter of Sakigake, Proc._20th_ESLAB_Symp.
        on_the_Exploration_of_Halley's_Comet, Heidelberg, 27-31 October, 1986, ESA_SP-250,
        129-133.
      13. Saito, T., S. Minami, K. Yumoto, E.J. Smith, and L. Zong-Li (1987); Structure and
        dynamics of the plasmatail of comet Halley, Part 1 Kink event on December 31, 1985,
        Proc._Chapman_Conference_on_Plas-ma_Waves_and_Instabilities_in_Magnetospheres
        and at_Comets, held at Sendai/Mt. Zao, on Oct.12-16, 74-77.
      14. Kurahashi, K., K. Ohta, T. Watanabe, T. Ogino, A. Iwata, N. Nishitani, T. Takayanagi,
        K. Yumoto, and T. Saito (1990); A digital processing for analogue geomagnetic records,
        Proc._Res._Inst._Atmos., Nagoya Univ., 37, 37-49.
      15. Miyaoka, H., T. Hirasawa, K. Yumoto and Y. Tanaka (1990); Low latitude aurorae on
        October 21, 1989, I, Proc._Japan_Acad., 66, Ser.B, 47-51.
      16. Tanaka, Y., Y. Kato, M. Nishino, K. Yumoto and K.J.W. Lynn (1991); Conjugate
        measurements of LF/VLF whistler-mode waves in Australia, Proc._of_Pacific
        Regional_STEP_Conference, held at Taipei on April 10-12, 1991, 64-67.
      17. Hamano, Y., K. Fujii, H. Utada, Y. Tanaka., T. Yukutake and K. Yumoto (1992);
        Electro-magnetic measurements by means of very-long-based sea bottom cables, Kaiyoh,
        24, No. 7, 408-413 (in Japanese).
      18. Osaki, H., K. Yumoto, K. Hidaka, Y. Tanaka, and M. Tanaka (1992); Geomagnetic
        induced and geophysical conduction currents in non-uniform conductivity structure,
        Proc._of_Conductivity_Anomaly, 189-195.
      19. Fujii, I., H. Utada, T. Yukutake, Y. Hamano, Y. Tanaka, and K. Yumoto (1993);
        Conductivity distribution below a sea floor inferred from voltage measurements using a
        submarine cable, Proc. of Conductivty Anomaly, 79-92.
      20. Osaki, H., K. Yumoto, K. Hidaka, Y. Tanaka, M. Tanaka, and T. Kakuta (1993);
        Electromagnetic observations of Sakurajima volcano in the Pc 3-Pi 2 pulsation range by
        means of "one-turn coil" method, Proc._of Conductivity_Anomaly, 212-219.
      21. Tanaka Y. and K. Yumoto (1993); Study on the magnetospheric processes at low latitudes
        by means of magnetic meridian networks, Gakujyutsu Geppou, 46, No.9, 846-852.
      22. Araki, T., S. Fujitani, K. Yumoto, K. Shiokawa, S. Tsunomura, Y. Yamada, T. Ichinose,
        D. Orr, D.K. Milling, H. Luhr, H. Singer, G. Rostoker, and C.F. Liu (1994); Anomalous
        sudden commencement on March 24, 1991,Proc._of_SCOSTEP_8th_Internal. Symp.
        on_Solar Terrestrial_Physics, held at Sendai, Japan, June 5-10, p.114.
      23. Osaki, H., K. Yumoto, K. Shiokawa, K. Takahashi, T. Sakurai, S.I. Solovyev, G.
        Krymskij, E.F. Vershinin, V.F. Osinin, and 210o MM Magnetic Observation Group
        (1994); High- and low-latitude Pi 2 magnetic pulsations observed at the 210o MM chain
        stations, Proc._of SCOSTEP_8th_Internal._Symp._on_Solar_Terrestrial_Physics, held at
        Sendai, Japan, June 5-10, p. 116.
      24. Zhang, Y., D.J. McEwen, K. Yumoto, K. Shiokawa, and K. Hayashi (1994); Studies of
        polar auroras from near the north magnetic pole, Proc. of_SCOSTEP_8th Internal. Symp.
        on_Solar_Terrestrial_Physics, held at Sendai, Japan, June 5-10, p.121.
      25. Hayashi, K., K. Shiokawa, N. Nishitani, M. Nishino, K. Yumoto, S. Kokubun, K.
        Makita, T. Watanabe, D.J. McEwen, G. Rostoker, D. Belian, and A. Egeland (1994);
        Auroral dynamics from STEP polar network observation, Proc.of_SCOSTEP_8th_Internal.
        Symp._on_Solar_Terrestrial_Physics, held at Sendai, Japan, June 5-10, p.124.
      26. Shiokawa, K., K. Yumoto, Y. Tanaka, T. Katoh, M. Satoh, Y. Ikegami, M. Sera, Y.
        Kiyama, and M. Tokumaru (1994); Unmanned optical measurements of low-latitude
        auroras in Hokkaido, Japan during STEP period, Proc._of_SCOSTEP_8th_Internal.
        Symp. on Solar_Terrestrial_Physics, held at Sendai, Japan, June 5-10, p.126.
      27. Shiokawa, K., K. Yumoto, S. Kokubun, T. Katoh, M. Satoh, Y. Ikegami, M. Sera, K.
        Hayashi, T. Oguti, D.J. McEwen, and Y. Kiyama (1994); Unmanned optical measurements
        of high-latitude auroras in Canadian Arctic during STEP period, Proc._of_SCOSTEP
        8th_Internal._Symp._on Solar_Terrestrial_Physics, held at Sendai, Japan, June 5-10,
        p.127.
      28. Akasofu, S.-I., J.V. Olson, S.Wei, K. Yumoto, K. Shiokawa, and Y. Tanaka (1995);
        Auroral and equatorial electrojets, Proc._of_the ninth_Intl._Symp._on_Equatorial
        Aeronomy (ISEA),_Including_the_Middle Atmosphere, held at Bali, Indonesia, on March
        20-24, pp. - .
      29. Li Yan., B.J. Fraser, F.W. Menk, C.L. Waters, D.J. Webster, W. Allan and K. Yumoto
        (1995); Propagation of Pi 2 pulsations wave energy to low and very low latitudes,
        Proc._of_the_ninth_Intl._Symp._on_Equatorial_Aeronomy_(ISEA),_Including_the_Middle
        Atmosphere, held at Bali, Indonesia, on March 20-24, pp. - .
      30. Shiokawa, K., K. Yumoto, Y. Tanaka, Y. Kiyama, Y. Kamide, and M. Tokumaru (1995);
        A low-latitude aurora observed at Rikubetsu (L=1.6) during the magnetic storm of
        September 13, 1993, Proc._NIPR_Symp., Upper_Atmos._Phys., 8, 17-23.
      31. Seto, M., K. Yumoto, Y. Kitamura and the 210o MM Magnetic Observation Group (1996);
        Induction arrows computed for the 210o MM magnetic observation stations,
        Mem._Fac._Sci., Kyushu_Univ., 29, No. 2, 145-157.
      32. Watanabe, T., M. Seto, K. Yumoto, and the 210o MM Magnetic Observation Group
        (1996); Theory of induction arrow based on 2D subsurface conductivity distribution model,
        Mem._of_Tohoku_Inst. of_Technology, Ser. I, 17, 35-43.
      33. Nakagawa, T., K. Yumoto, T. Saito, H. Kimura, and H. Kobayashi (1997); Evaluation of
        offset components in SAKIGAKE magnetic field data, Rept. of Inst. of Space and Astron.
        Sci., No.93, pp.1-35.
      34. Nozaki, K., H. Utada, and K. Yumoto (1997); Geomagnetically induced voltage obser-
        vation system of the Transpac-2 cable, Proc. of Intl. Workshop on Scentific Use of
        Submarine Cables, held at Okinawa on Feb. 25-28, 1997, pp.49-51.
      35. Seto, M., Y. Kitamura, K. Yumoto and the 210゜MM Geomagnetic Observation Group
        (1997); Geomagnetic variations associated with Guam great earthquake, Proc. of
        Conductivity Anomaly, 94-97.
      36. Baishev, D.G., E.S. Barkova, S.I. Solovyev, and K. Yumoto(1998); Response of the
        Eastwards electrojet and IPDP geomagnetic pulsations to the substorm expansion phase,
        Proc, of Intl. Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan, 577-580.
      37. Colqui, R., K. Yumoto, H. Tachihara, T.-I. Kitamura, N.B. Trivedi, and Jose Marques da
        Costa (1998); Two-dimensional equatorial electrojet current system deduced from the
        Brazilian network, 1. Based on the H component, Mem._Fac._Sci., Kyushu_Univ., 30,
        1-14.
      38. Hattori, K., Hayakawa, M., K. Yumoto, T. Nagao, and S. Uyeda(1998); Analyses of ULF
        magnetic data associated with the 1997 Kagoshima earthquake, Technical Report of IECE,
        SANE97-81 (1997-11), 37-42.
      39. Kitamura, K., K. Yumoto, K.J.W. Lynn, E.F. Vershinin, B.J. Fraser and the 210 MM
        Magnetic Observation Group (1998); Nothern/southern hemisphere asymmetry of sc/si in the
        nighttime sector, Proc. NIPR Symp., Upper Atmos. Phys., 12, 108-114.
      40. Li., Y., K. Yumoto, M. Itonaga, M. Shinohara, T.-I., Kitamura, the CPMN group (1998);
        Equatorial Pi 2s as indicator of substorms and relation between dayside and nighside Pi 2s,
        Proc. of Intl. Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan,
        555-558.
      41. Meng, C.-I., K. Liou, A. T. Lui, P. T. Newell, M. Brittnacher, G. Parks, K. Yumoto,
        Auroral Breakup: A definite substorm onset identifier, EOS, Trans, AGU, Vol. 79(17),
        April 28, 1998.
      42. Okada, K., O. Watanabe and K. Yumoto (1998); Where is the current disruption set up ?,
        Proc. of Intl. Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan, 391-392.
      43. Pilipenko, V.A., K. Yumoto, E.N. Fedorov, N. Kurneva, and F.W. Menk (1998); Field
        line Alfven oscillations at low latitudes, Mem._Fac._Sci., Kyushu_Univ., 30, 23-43.
      44. Pilipenko, V.A., M. Engebretson, W.J. Hughes, S. Solovyev and K. Yumoto(1998);
        Coupling between substorms and ULF disturbances in the dayside cusp, Proc. of Intl.
        Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan, 573-576.
      45. Sergeev, V.A., M.A. Shukhtina, Y. Kamide, S. Kokubun, R. Nakamura, K, Shiokawa,
        R.P. Lepping, S.A. Romanov, T.J. Hughes, O.A. Troshichev, and K. Yumoto (1998);
        Orientation of solar wind discontinuities: Implications for substorm studies, Proc. of the
        ISC-4, held on March 9-13, at Lake Hamana, Japan, 277-281.
      46. Solovyev, S.I., D.G. Baishev, E.S. Barkova, N.E. Molochushkin, A.A. Fedorov, and K.
        Yumoto(1998); Excitation of Ps 6 geomagnetic pulsations relative to north-south aurora
        structures in the evening-premidnight sector of the auroral zone, Proc. of Intl. Conf. on
        Substorms-4, held on March 9-13, at Lake Hamana, Japan, 563-566.
      47. Sun W., S.-I. Akasofu, B.-H. Ahn, K. Shiokawa and K. Yumoto (1998); The relationship
        between the auroral electrojets, field-aligned currents and the ring current, Proc. of the
        ISC-4, held on March 9-13, at Lake Hamana, Japan, 107-110.
      48. Sun, W., K. Shiokawa, K. Yumoto, T.-I. Kitamura, J.V. Olson, and S.-I. Akasofu
        (1998); The dependence of magnetic bays and the main phase of magnetic storms on latitude
        and magnetic local time, Mem. Fac. Sci., Kyushu Univ., 30, No. 2, 71-80.
      49. Tanaka, Y.-M., K. Tang, K. Yumoto, N.B. Trivedi, and T.-I. Kitamura (1998);
        Geomagnetic pulsations at the conjugate stations during the March 9, 1997, Total Solar
        Eclipse, Mem. Fac. Sci., Kyushu Univ., 30, No.2, 80-89.
      50. Watanabe, T., M. Seto, and K. Yumoto (1998); New method to determine induction arrow:
        Reexamination and extension of approach by Rikitake and Yokoyama, Mem. of Tohoku
        Inst. of Technology, Ser. I, 18, 17-27.
      51. Watanabe, T., K. Yumoto, E. Sagawa, and T. Kikuchi (1998); Data analysis activity in
        Japan during the STEP period, STER in Japan, Vol. 19, 41-90.
      52. Makita, K., M. Hoshino, H. Tachihara, M. Nishino, and K. Yumoto (2000); Conjugate
        observation between Brazil and Trinidad, Bulletin Science Engineering, Takushoku
        University, 7 (3), 27-34.
      53. Shimoizumi, M., S. Handa, Y. Tanaka, T. Mogi, and K. Yumoto (2000); Preliminary report
        regarding the development of the Ocean Bottom Electromagnetometer (OBEM) for the shallow
        sea (1), , Proc. of Conductivity Anomaly, 54-60.
      54. Itonaga, M., A. Yoshikawa, K. Yumoto, S. Fujita, and H. Nakata (2000): A study of the
        generation of Field-aligned current in the magnetosphere, Mem. Fac. Sci., Kyushu Univ.,
        31, No.1, 1-9.
      55. Li, Y., K. Yumoto, and the 210 MM Magnetic Observation Group (2000); Local time
        dependence of Pi 2 pulsations observed along the 210 magnetic meridian, Mem. Fac. Sci.,
        Kyushu Univ., 31, No.1, 11-18.
      56. Makita, K., M. Hoshino, M. Nishino, T. Kikuchi, and K. Yumoto (2000); Optical emission
        in Brazilian geomagnetic anomaly region (1), Bulletin Science Engineering, Takushoku
        University, Vol. 7 (4), 9-16.
      57. Nishino, M., K. Makita, K. Yumoto, F. Rodrigues, and J.S. Nelson (2000); Imaging
        Riometer observation in the Brazilian Geomagnetic Anomaly Region, Bulletin Science
        Engineering, Takushoku University, Vol. 8, (1), 15-20.
      58. Baishev, D.G., E.S. Barkova, S.I. Solovyev, K. Yumoto, M.J. Engebretson, and Koustov
        (2000); Formation of large-scale, "Giant" undulations at the equatorial boundary of diffuse
        aurora and Pc 5 magnetic pulsations during the January 14, 1999 magnetic storm, Proc. of
        Fifth International Conference on Substorms, St. Petersburg, Russia, 16-20 May 2000,
        Noordwijk, Netherlands: ESA, pp 427-430.
      59. Makarov G.A., D. G. Baishev, A. V. Moiseyev, S. I. Solovyev, V. A. Pilipenko, M. J.
        Engebretson, and K. Yumoto(2000); High-latitude peculiarities of the geomagnetic SI impulse
        propagation meridional velocity during sharp decrease of solar wind density, Proc. of Fifth
        International Conference on Substorms, St. Petersburg, Russia, 16-20 May 2000,
        Noordwijk, Netherlands: ESA, pp 523-526.
      60. Solovyev, s.I., D.G. Baishev, E.S. barkova and N.E. Molochushkin (2000); Excitation of
        Pi 2 pulsation caused by development of the current instability and shear flow in
        magnetosphere during pseudobreakups and the substorm onset, Proc. of Fifth International
        Conference on Substorms, St. Petersburg, Russia, 16-20 May 2000, Noordwijk,
        Netherlands: ESA, pp 579-582.
      61. Nose, M., K. Takahashi, T. Uozumi, K. Yumoto, and D. K. Milling (2002), Multipoint
        observations of a Pi2 pulsation on morning side, Proc. of Sixth International Conference on
        Substorm-6 Meeting, in March 2002, Seattle, USA, in press.
      62. Yoshikawa, A., M. Itonaga, and k. Yumoto (2002); On the energy of the poloidal magnetic
        field near the ionosphere, Adv. Polar Upper Atmos. Res., 16, 45-58.
      63. S.K. Sung, K. H. Kim, D.H. Lee, K. Yumoto, and K. Kitamura (2003), Magnetospheric response to
        pulsed variation in solar wind dynamic pressure: A case study, Proceed. of Intl. Symp. on Information
        Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp.
        175-178.
      64. A. Yoshikawa, H. Kohta, T. Uozumi, M. Itonaga, and K. Yumoto (2003), Integrated Analysis of
        Coordinated Ground Magnetic Field Data for Space Weather Study, Proceed. of Intl. Symp. on
        Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14,
        2003, pp. 114-117.
      65. Y. Obana, A. Yoshikawa, R. J. Morris, B. J. Fraser, S. I. Solovyev, K. Yumoto (2003), Environment
        Factors of Pc 3-5 Amplitudes Observed at the CPMN Stations, Proceed. of Intl. Symp. on Information
        Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp.
        256-258.
      66. S. Pilipenko, K. Yumoto, Relationships between the Satellite Anomalies(2003), Relativistic Electrons,
        and ULF waves, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003,
        held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 118-121.
      67. K. Kitamura, H. Kawano, S. Ohtani, A. Yoshikawa, K. Yumoto and the CPMN Group(2003), Quasi-
        periodic substorms during recovery phase of magnetic storm for space weather study, Proceed. of Intl.
        Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on
        Nov. 12-14, 2003, pp. 354-357.
      68. Y. Tanaka, K. Yumoto, The CPMN Group (2003), The dependence of Pc 3-5 pulsations on the solar wind parameters and geomagnetic indices, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 183-185.
      69. K. Fukuyama, T. Higuchi, T. Uozumi, H. Kawano, K. Yumoto (2003), the CPMN Observation Group, Determination of onset times of Pi2 magnetic pulsations, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 522-525.
      70. T. Shiraishi, H. Kawano, K. Yumoto (2003), Where the Substorm Current Wedge is Formed During Magnetic Storms? : A Case Study of the May 27, 1997, Storm-Time Substorm, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 537-540.
      71. S. Takasaki, H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iizima and K. Yumoto (2003), Plasma distribution in the low-L part of the plasmasphere during magnetic storms, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 253-255.
      72. S. Abe, K. Yumoto, H. Kawano, A. Yoshikawa, Y. Obana, S. I. Solovyev, D. G. Baishev, J. V. Olson, E. W. (2003), The Diagnosis of the Plasmapause by Ground Magnetometer Network Observation at Multiple Local Times, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 534-536.
      73. Haraguchi, K, H, Kawano, and k, Yumoto (2003), Characteristics of field-aligned currents observed by the DMSP satellite, Proceed. of Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003, pp. 358-360.
      74. Obana, Y., A. Yoshikawa, J.V. Olson, R.J. Morris, B.J. Fraser, S.I. Solovyev, and K. Yumoto (2004), Techniques to investigate the ionospheric effect on ULF waves', Proceeding of The fifth Workshop on Applications of Radio Science (WARS), Hobart, Australia, on Feb. 18-20, 2004, CD-ROM, H2.
      75. Takasaki, S., H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iizima, and K. Yumoto (2004), Enhancements of the plasmaspheric density in its low-L part during magnetic storms, Proceeding of The fifth Workshop on Applications of Radio Science (WARS), Hobart, Australia, on Feb. 18-20, 2004, CD-ROM, H1.
      76. 吉川顕正, 河野英昭, 公田浩子, 高崎聡子, 魚住禎司, 北村健太郎, 湯元清文 (2004),地上多点磁場観測と海底ケーブルを組み合わせた宙空電磁環境のモニタリング/モデリングの可能性について、月刊地球、Vol. 26, No. 5, 307-314.
      77. 福山恵子、樋口、河野英昭、魚住禎司, 湯元清文 (2004); 初動が緩慢な波動現象開始時の精密測定:Pi 2型地磁気脈動オンセットタイムの決定法、電子情報通信学会A, Vol. J87-A, No.12, 1502-1510.
      78. 亘慎一,村田健史,荻野龍樹,家森俊彦,湯元清文,高橋真理子,信清憲司,木村映善, 島津浩哲,北村 泰一,北村健太郎,篠原学,菊池崇,五十嵐喜良(2005); JGNⅡによる宇宙天気情報ネットワークの構築, 情報通信研究機構季報, Vol. 51, 127-134.
      79. Akiko Fujimoto, E.O.Joshua, Shuji Abe, Kiyohumi Yumoto (2007): Characteristic of Equatorial Pc5 at ILE-IFE, Memoirs of the Faculty of Sciences, Kyushu University, Series D Earth and Planetary Sciences, Volume XXXII, No. 1
      80. Akihiro Ikeda, Kiyohumi Yumoto, Manabu Shinohara, Kenro Nozaki, Akimasa Yoshikawa, Atsuki Shinbori (2007) : SC-associated Ionospheric Electric Fields at Low Latitude : FM-CW Radar Observation, Memoirs of the Faculty of Sciences, Kyushu University, Series D Earth and Planetary Sciences, Volume XXXII, No. 1
      81. Ueno Tamiki, Akiko Fujimoto, Kiyohumi Yumoto, Keisuke Ushijima, Hideki Mizunaga and Toshiya Hanada(2007): Measurement of QSAT Residual Magnetism, Memoirs of the Faculty of Sciences, Kyushu University, Series D Earth and Planetary Sciences, Volume XXXII, No. 1, pp. 7-23
      82. 加藤貴裕、鶴田佳宏、平山寛、花田俊也、Josef C. Van der Ha, 藤本晶子、湯元清文、倉原直美、趙孟佑(2007): オーロラ帯磁化プラズマ観測衛星‐QSAT、宇宙科学技術連合講演会
      83. Kato T., Tsuruda Y., Fujimoto A., Kurahara N., van der Ha J.C., Hanada T., Hirayama H., Yumoto K., and Cho M.(2009); QSAT: Kyushu Satellite for Polar Plasma Observations, Proc. of the Joint International Symposium on Aerospace. Engineering, Nov. 20-21, 2008, Korea, in press.
      84. Rabiu A.B., Yumoto K., Shiokawa K., and Fujimoto A.(2009); EQUATORIAL ELECTROJET PARAMETERS ALONG 210? MAGNETIC MERIDIAN USING A THICK SHELL MODEL FORMAT: PRELIMINARY RESULTS, Proc. of the Workshop on Equatorial Atmosphere, Research Institute for Sustainable Humanosphere, Kyoto University, in press.
      85. Uozumi Teiji, Yumoto K., Kitamura K., Abe S., Omoto T., and MAGDAS group (2009); A Calibration Technique for Temperature Drift of MAGDAS Magnetometer Data, Memoirs of the Faculty of Sciences, Kyushu University, Serries D Earth and Planetary Sciences, in press.
  • III. International Conference and Symposium (389)
    • First author's(107)
      1. Yumoto, K. (1985); Theoretical considerations on low-latitude magnetic pulsations, The_5th
        General_Assembly_of_IAGA/IAMAP, held at Prague, Czechoslovakia, August 5-17.
      2. Yumoto, K., T. Saito, S.-I. Akasofu, B.T. Tsurutani, and E.J. Smith (1985); Propagation
        mechanisms of daytime Pc 3-4 pulsations observed at globally separated stations, The_5th
        General_Assembly_of_IAGA/ IAMAP, held at Prague, Czechoslovakia, August 5-17.
      3. Yumoto, K., T. Saito, Y. Tanaka, F.W. Menk, and B.J. Fraser (1986); A Possible model of
        Pc 3 magnetic pulsations at low latitudes, Solar-Terrestrial_and_Space_Physics Workshops
        at_7th_AIP_Congress, held at Univ. of Adelaide, Australia, August 25-29.
      4. Yumoto, K., T. Saito, and T. Nakagawa (1986); Long-period HM waves associated with
        cometary O+ (or H2O+) ions: Sakigake observations, The_20th_ESLAB_Symp. on_the
        Exploration of_Halley's_comet, held at Heidelberg, W. Germany, October 27-31.
      5. Yumoto, K. (1987); Coupling between surface waves at the magnetopause and the resonant
        field line inside the magnetosphere: Ionospheric conductivity and azimuthal wave number
        dependence, The_Symposium_on Quantitative_Modeling_of_Magnetosphere-Ionosphere
        Coupling Processes, held at Kyoto Sangyo Univ., March 9-13.
      6. Yumoto, K., T. Saito, Y. Tanaka, K.J.W. Lynn, F.W. Menk, and B.J. Fraser (1987);
        Polarization characteristics of Pc 3 magnetic pulsations observed at low-latitude conjugate
        stations, XIX_General Assembly_of_IUGG, held at Vancouver, Canada, August 9-22.
      7. Yumoto, K., A. Wolfe, L. Kamen, T. Terasawa, and L.J. Lanzerotti (1987); Relationships
        between upstream solar wind parameters and Pc 3 magnetic energy spectra at South Pole,
        XIX_General_Assembly_of IUGG, held at Vancouver, Canada, August 9-22.
      8. Yumoto, K. (1987); MHD waves in the magnetosphere, XXIInd_General Assembly
        of_URSI, held at Tel Aviv, Israel, August 24-September 2.
      9. Yumoto, K., S. Watanabe, and H. Oya (1987); HM resonance oscillations in the
        magnetosphere, Chapman_Conference_on_Plasmas_Waves_and_Instabilities_on
        Magnetospheres and_at_Comets, held at Sendai/Mt. Zao, Japan, October 12-16.
      10. Yumoto, K., T. Saito, K. Takahashi, T.A. Potemra, L.J. Zanetti, F.W. Menk, and B.J.
        Fraser (1988); Relation of Pi 1-2 magnetic pulsations at L = 1.3-2.1 to substorm-associated
        phenomena at AMPTE/CCE, AGU Spring_Meeting, held at Baltimore, U.S.A., May 16-20.
      11. Yumoto, K., K. Takahashi, T. Sakurai, P.R. Sutclife, S. Kokubun, H. Luehr, T. Saito, M.
        Kuwashima, and N. Sato (1989); Multistation observations of global Pi 2 pulsations,
        AGU_Spring_Meeting, held at Baltimore, USA, May 7-12.
      12. Yumoto, K., S. Watanabe, and H. Oya (1989); Spatial structure of impulsively-stimulated
        HM resonance oscillation in the magnetosphere I: MHD simulation, 6th_Scientific
        Assembly_of_IAGA, held at Exeter, UK, July 24-August 4.
      13. Yumoto, K., T. Saito, F.W. Menk, B.J. Fraser, Y. Tanaka, and H. Mitsudome (1989);
        Characteristics of Pi 2 magnetic pulsations in conjugate areas around L=1.2-2.1,
        6th_Scientific_Assembly_of_IAGA, held at Exeter, UK, July 24-August 4.
      14. Yumoto, K., K. Takahashi, T. Sakurai, P.R. Sutcliffe, S. Kokubun, and H. Luhr (1989);
        Latitudinal structure of global Pi 2 magnetic pulsations, 6th_Scientific_Assembly_of IAGA,
        held at Exeter, UK, July 24-August 4.
      15. Yumoto, K., Y. Tanaka, H. Miyaoka, T. Hirasawa, K. Takahashi, and R.D. Belian (1990);
        Auroral substorm observed at L=1.56 during the great magnetic storm of October 1989,
        1990_Western_Pacific_Geophysics_Meeting, held at Kanazawa, Japan, August 21-25.
      16. Yumoto, K. (1990); Global mode nature of Pi 2 magnetic pulsations, 1990_Western_Pacific
        Geophysics_Meeting, held at Kanazawa, Japan, August 21-25.
      17. Yumoto, K., Y. Tanaka, Y. Yoshimura, B.J. Fraser, and F.W. Menk (1991); Wave
        characteristics of low-latitude Pc 3 magnetic pulsations observed along 210o magnetic
        meridian, Pacific_Regional_STEP Conference, held at Taipei, ROC, April 10-12.
      18. Yumoto, K.(1991); Review of transport posters, The_XX_IUGG_General Assembly, held
        at Vienna, Austria, August 11-24.
      19. Yumoto, K., Y. Tanaka, Y. Yoshimura, B.J. Fraser, and F.W. Menk (1991); Low-latitude
        Pc 3 magnetic pulsations observed along 210 magnetic meridian, The_XX_IUGG_General
        Assembly, held at Vienna, Austria, August 11-24.
      20. Yumoto, K., Y. Tanaka, T. Oguti, B.J. Fraser, F.W. Menk, L.W. Lynn, M. Seto, and
        210o ML Magnetic Observation Group (1992); Globally coordinated magnetic observations
        along 210o magnetic meridian during STEP period: 1. Preliminary results of low-latitude
        Pc 3's, South_Pacific_STEP_Workshop, held at Melbourne, Victoria, Australia, February
        10-14.
      21. Yumoto, K., and 210o MM Magnetic Observation Group (1992); Collaborative GB
        magnetometer observations along 210o and 250o magnetic meridians, 1992_STEP_Symp.
        /5th COSPAR_Colloquium, held at JHU/APL, Maryland, USA, August 24-28.
      22. Yumoto, K. (1992); Cavity-like and field-line oscillations of Pc 3-4 stimulated by
        interplanetary impulse (si/sc), Chapman Conference on Solar Wind Sources of
        Magnetospheric ULF_Waves, held at Virginia, USA, September 14-18.
      23. Yumoto, K. and 210o MM Magnetic Observation Group (1993); Globally coordinated
        magnetic observations along 210o magnetic meridian, duringthe STEP period, International
        Workshop_on_Magnetic_Observations_in_Indonesia _during_the_STEP_Period, held at
        Biak, Indonesia, March 18-21.
      24. Yumoto, K. (1993); Magnetic field observations at Biak and 210o MM stations: Initial
        results, United_Nations/Indonesia_regional_Conference_on_Space Science_and_Technology
        for_Sustainable_Development, held at Bandung, Indonesia, May 17-21.
      25. Yumoto, K., K. Shiokawa, Y. Tanaka, F.W. Menk, and B.J. Fraser (1993); Magnetic field
        observations at the 210o MM stations: Initial results, Second_South_Pacific STEP
        Workshop, held at Newcastle, Australia, July 5-9.
      26. Yumoto, K., K. Fukao, K. Shiokawa, Y. Tanaka, and 210o MM Magnetic Observation
        Group (1993); Latitudinal structures of low-latitude Pi 2 pulsations observed at the 210o
        magnetic meridian stations, 7th Scientific_Assembly_of_IAGA, held at Buenosaires,
        Argentina, August 8-20.
      27. Yumoto, K., A. Isono, K. Shiokawa, Y. Tanaka, F.W. Menk, B.J. Fraser and 210o MM
        Magnetic Observation Group (1993); Global cavity-like and localized field-line Pc 3-4
        oscillations stimulated by interplanetary impulses (si/sc): initial results from the 210o MM
        magnetic observations, 7th_Scientific_Assembly_of_IAGA, held at Buenosaires,
        Argentina, August 8-20.
      28. Yumoto, K., A. Isono, K. Shiokawa, Y. Tanaka, F.W. Menk, B.J. Fraser and 210o MM
        Magnetic Observation Group (1993); Global and localized modes of Pc 3-4 magnetic
        pulsations stimulated by interplanetary impulses (si/sc) in the inner magnetosphere,
        7th_Scientific_Assembly of_IAGA, held at Buenosaires, Argentina, August 8-20.
      29. Yumoto, K., V.A. Pilipenko, E. Fedorov, and N. Kurneva (1993); ULF wave phenomena during ssc,
        7th_Scientific_Assembly_of_IAGA, held at Buenosaires, Argentina, August 8-20.
      30. Yumoto, K., K. Shiokawa, Y. Tanaka, and 210o MM Magnetic Observation Group (1993);
        Ionospheric currents and magnetic variations caused by low-latitude aurorae, COSPAR
        Colloquium_on_Low-latitude_Ionospheric Physics, held at Taipei, ROC, November 9-12.
      31. Yumoto, K. (1994); Characteristics variations observed at 210 degree magnetic meridian chain
        stations, SCOSTEP_8th_Internal._Symp._on Solar_Terrestrial_Physics, held at Sendai, Japan,
        June 5-10.
      32. Yumoto, K., S. Solovyev, D. Baisshev, N. Molochushkin, G. Makarov, A. Sobolev, V.
        Soloveyev, E. Vershinin and V. Osinin (1994); Variations of geomagnetic pulsation
        parameters of Pc 1-2and IPDP and their relationships with Pi 2 and Pc 5 during magnetic
        substorms, SCOSTEP 8th_Internal._Symp._on_Solar_Terrestrial_Physics, held at Sendai,
        Japan, June 5-10.
      33. Yumoto, K., G. Makarov, D. Baishev, N. Molochushkin, A. Sobolev, S. Solovyev, and
        V. Solovyev (1994); Some manifestations of ssc in the auroral zone at the 210o deg
        magnetic meridian chain stations, SCOSTEP_8th_Internal._Symp._on_Solar_Terrestrial
        Physics, held at Sendai, Japan, June 5-10.
      34. Yumoto, K., H. Osaki, K. Shiokawa, Y. Tanaka, S.I. Solovyev, G. Krymskij, E.F.
        Vershinin, V.F. Osinin, and 210o MM Magnetic Observation Group (1994), Characteristics
        of Pi 2 pulsations observed at the 210o MM chain stations, AGU_Fall_Meeting, held at San
        Francisco, California, on December 5-9.
      35. Yumoto, K., H. Matsuoka, K. Shiokawa, Y. Tanaka, T. Kitamura, S.I. Solovyev, N.
        Molochuskin, E.F. Vershinin, V.F. Osinin, S.L. Manurung, Obay Sobari, Mamat
        Ruhimat, Ray J. Morris, B.J. Fraser, F.W. Menk, J.V. Olson, S.-I. Akasofu, and 210o
        MM Magnetic Observation Group (1995); Northern- and southern-hemisphere asymmetry
        of sc and si magnetic variations observed along 210o magnetic meridian, The_ninth
        Intl._Symp._on_Equatorial_Aeronomy_(ISEA),_Including_the Middle_Atmosphere, held
        at Bali, Indonesia, on March 20-24, 1995.
      36. Yumoto, K., S.I. Solovyev, N.E. Molochushkin, and D.G. Baishev (1995); Pi 2 excitation
        and arc brightening at substorm onset, IUGG_XXI General_Assembly, held at Boulder,
        Colorado, on July 2-14.
      37. Yumoto, K., S.I. Solovyev, D.G. Baishev, and E.S. Barkova (1995); Pc 1-2 and IPDP
        modulation effects by Pc 5 waves during substorms and magnetic storms, IUGG
        XXI_General_Assembly, held at Boulder, Colorado, on July 2-14.
      38. Yumoto, K., V.A. Pilipenko, E. Fedorov, and F.W. Menk (1995); Peculiarities of field line
        Alfven resonator at low latitudes, IUGG_XXI General_Assembly, held at Boulder,
        Colorado, on July 2-14.
      39. Yumoto, K., H. Matsuoka, K. Shiokawa, Y. Tanaka, T. Kitamura, S.I. Solovyev, N.
        Molochushkin, E.F. Vershinin, V.F. Oshinin, S.L. Manurung, Obay Sobari, Mamat
        Ruhimat, R.J. Morris, B.J. Fraser, F.W. Menk, J.V. Olson, S.-I. Akasofu, and 210o MM
        Magnetic Observation Group, IUGG_XXI_General_Assembly, held at Boulder, Colorado,
        on July 2-14.
      40. Yumoto, K., and the 210o MM Magnetic Observation Group (1995); The 210o MM
        magnetometer network, IUGG_XXI_General_Assembly, held at Boulder, Colorado, on
        July 2-14.
      41. Yumoto, K., V.A. Pilipenko, N. Yagova, E.F. Vershinin, S.I. Solovyev (1995); Variations
        of the spectral content of Pc 3-4 pulsations along 210 geomagnetic meridian,
        IUGG_XXI_General_Assembly, held at Boulder, Colorado, on July 2-14.
      42. Yumoto, K., H. Tachihara, M. Shinohara, T.-I. Kitamura, K. Shiokawa, R.J. Morris, J.V.
        Olson, S.-I. Akasofu, K.J.W. Lynn, and J.A. Kennewell (1996); Penetration of Polar
        electric fields into the equatorial region: 1996_Western_Geophysics_Meeting, held at
        Brisbane, Australia, on July 23-27.
      43. Yumoto, K.(1997); Low-latitude geomagnetic pulsations, International Workshop on
        Seismo Electromagnetics, held at the University of Electro-Communications at Chofu, on
        March 3-5, 1997.
      44. Yumoto, K.(1997); Ground-based magnetometer network observations as diagnostics of
        magnetospheric processes, Abstracts of 8th Scientific Assembly of IAGA, held at
        Uppsala, on August 4-15, 1997.
      45. Yumoto, K.(1997); Low-latitude geomagnetic pulsations: Recent results from the 210 MM
        and Dip equator networks, Expanded abstracts of 5th International Congress of the Brazilian
        Geophysical Society, held at Sao Paulo, Brasil, on Sept. 28-Oct. 2, 1997.
      46. Yumoto, K., M. Seto, and the CPMN project group (1997); Circum-pan Pacific
        magnetometer network project, International Symp. on New images of the Earth's interior
        through long-term ocean-floor observations, held at Kazusa Akademia Center, Chiba, Japan,
        on November 6-8, 1997.
      47. Yumoto, K., Y. Li, T.-I. Kitamura, S. Solovyev, and the CPMN group (1998); Substorm-triggered long-
        period magnetic pulsations at high latitudes, Intl. Conf. on Substorms-4, held on March 9-13, at
        Lake Hamana, Japan.
      48. Yumoto, K.(1998); The origin, propagation, and excitation mechanisms of low-latitude geomagnetic
        pulsations, 1998 Western Pacific Geophysical Meeting, held at Taipei on July 21-24.
      49. Yumoto, K.(1998); The origin, propagation, and excitation mechanisms of low-latitude
        magnetic pulsations, Fifth Latin-American Conference on space geophysics (V-COLAGE),
        held at San Jose, Costa Rica, on November 3-7.
      50. Yumoto, K. and the CPMN group (1998); Characteristics of Pi 2 magnetic pulsations
        observed at the CPMN stations, Fall Meeting of AGU at San Francisco, on December 6-10.
      51. Yumoto, K., and the CPMN Group (1999); Characteristics of Pi 2 Magnetic Pulsations
        Observed at the CPMN Stations: A Review of the STEP Results, XXII IUGG General
        Assembly, at Birmingham, UK, on July 18-30.
      52. YUMOTO, K., M. Shinohara, K. Nozaki, and the CPMN and WestPac Observation Groups,
        Simultaneous Ground-based Observations of Electric and Magnetic Field Variations near the
        Magnetic Equator for Space Weather Study, Abstracts of COSPAR Colloquium on Space Weather
        Study Using Multi-Point Techniques, held at Pacific Green Bay, Taipei, on Sept. 27-29, 2000.
      53. YUMOTO, K., R. Yamaguchi, H. Kawano, K. Fukuyama and the CPMN group,
        RELATIONSHIP BETWEEN LOW-LATITUDE Pi 2 PULSATIONS AND
        MAGNETOSPHERIC SUBSTORM ONSETS, Abstract of the First S-RAMP Conference,
        held at Sapporo, on Oct. 2-6, 2000.
      54. YUMOTO, K., N. Yagova, T. Neubert, V. Pilipenko, V. Papitashvili, J. Watermann,
        COUPLING OF ULF WAVES/TRANSIENTS AT THE DAYSIDE CUSP AND THE
        NIGHTTIME CONJUGATE AURORAL REGIONS AS OBSERVED AT
        CPMN-GREENLAND-ANTARCTIC FACILITY, Abstract of the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      55. Yumoto, K., , M. Shinohara, K. Nozaki, E. Orosco, V. Badillo, and D. Bringas,
        Simultaneous Ground-based Observations of Electric and Magnetic Field Variations near the
        Magnetic Equator for Space Weather Study, the 18th SPP Physics Congress, held at
        Asturias Hotel, Puerto Princesa, Palawan, Philippines, on 27-29 October 2000
      56. Yumoto, K., Monitoring of Geophysical Electromagnetic Environment by Low Altitude
        Microsatellites, Workshop on Natural Disaster Monitoring by Satellite, held at PARIS,
        January 30, 31 ミ February 1, 2001.
      57. Yumoto K., M. Shinohara, K. Nozaki, E. A. Orosco, Fr. V. Badillo, D. Bringas, Ha
        Duyen Chau , N.T.K. Thoa , and the CPMN and WestPac Observation Groups
        (2001); Simultaneou ground-based observations of DP 2 electric and magnetic
        field variations near the magnetic equator, The II Meeting of International Workshop on
        realizing of complex joint observations on the interaction of the solar wind with
        magnetosphere, seismoelectromagnetic VLF radiation and operative precursors of
        earthquakes in Pacific region, , 14-19 August 2001, held at IKIR, Russian Academy of
        Sciences Far Eastern Branch, Elizovo, Kamchatka, Russia.
      58. Yumoto,K and CPMN group; Field-line resonance oscillations around L=1.3 excited by the upstream waves, The II Meeting of International Workshop on realizing of complex joint
        observations on the interaction of the solar wind with magnetosphere, seismoelectromagnetic
        VLF radiation and operative precursors of earthquakes in Pacific region, , 14-19 August 2001,
        held at IKIR, Russian Academy of Sciences Far Eastern Branch, Elizovo, Kamchatka, Russia.
      59. Yumoto,K and CPMN group; Relationship between Pi 2 Magnetic pulsations and auroral
        substorms , The II Meeting of International Workshop on realizing of complex joint
        observations on the interaction of the solar wind with magnetosphere, seismoelectromagnetic
        VLF radiation and operative precursors of earthquakes in Pacific region, , 14-19 August 2001,
        held at IKIR, Russian Academy of Sciences Far Eastern Branch, Elizovo, Kamchatka, Russia.
      60. Yumoto,K and CPMN group; Magnetic variations associated earthquakes observed at the
        CPMN stations, The II Meeting of International Workshop on realizing of complex joint
        observations on the interaction of the solar wind with magnetosphere, seismoelectromagnetic
        VLF radiation and operative precursors of earthquakes in Pacific region, , 14-19 August 2001,
        held at IKIR, Russian Academy of Sciences Far Eastern Branch, Elizovo, Kamchatka, Russia.
      61. Yumoto K., R. Yamaguchi, T. Uozumi, H. Kawano, K. Liou, C.-I. Meng (2) and the
        CPMN group (2001); Role of P i 2 pulsations in substorm process, IAGA-IASPEI
        2001, 19-31 August 2001, Hanoi, Vietnam.
      62. Yumoto K., M. Shinohara, K. Nozaki, E. A. Orosco, Fr. V. Badillo, D. Bringas, Ha
        Duyen Chau , N.T.K. Thoa , and the CPMN and WestPac Observation Groups
        (2001); Simultaneou ground-based observations of DP 2 electric and magnetic
        field variations near the magnetic equator, IAGA-IASPEI 2001, 19-31 August
        2001, Hanoi, Vietnam.
      63. Yumoto, K. and CPMN group; Characteristics of Pi 2 Magnetic Pulsations Observed at the
        CPMN Stations , Presented at the geophysical Institute, Univ. of Alaska ,Sept.28, 2001, Geophysical
        Institute, Univ. of Alaska ,Fairbanks
      64. Yumoto, K. (2001); Sudden changes during auroral substorm, International workshop on
        Bifurcation Phenomena in Plasmas, held on 3-5 Dec. 2001, in Fukuoka, Japan.
      65. Yumoto, K. (2003); CPMN: Current operation and plan for space weather research and application,
        the SWME/PURAES meeting, March 18-19, 2003, in Kyoto University.
      66. Yumoto K, T. Uozumi, R. Yamaguchi, H. Kawano, K. Liou, and C.-I. Meng, Role of Pi 2 pulsations
        in substorm process Session ST10, EGS-AGU-EUG 2003 Joint Assembly Meeting in Nice, France,
        April 7-11, 2003
      67. Kiyohumi Yumoto, and the CPMN group, Circum-pan Pacific Magnetometer Network observations
        for study of ionosphere-thermosphere-magnetosphere coupling syste, IUGG 2003, held at Sapporo,
        Japan, on June 30-July 11, 2003.
      68. Kiyohumi Yumoto, and the CPMN group , Ground-Based Network Observations For Space
        Weather Study, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      69. Kiyohumi Yumoto, Teiji Uozumi, Rui Yamaguchi, Hideaki Kawano, Kan Liou, and Ching-I. Meng,
        Are Pi 2 magnetic pulsations a good indicator of substorm onsets ?, IUGG 2003, held at Sapporo,
        Japan, on June 30-July 11, 2003.
      70. K. Yumoto, The CPMN Group, Space Weather Study in Kyushu University, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      71. K.Yumoto and Y. Obana, A new technique for electromagnetic monitoring of the solid earth by means of coordinated ULF-wave observations, 2005 International Workshop on Seismo Electromagnetics, The University of Electro-Communications, Tokyo, Japan, March 15- March 17, 2005
      72. Kiyohumi Yumoto and Yuki Obana, A New Technique for Electromagnetic Monitoring of the Solid Earth by Means of Coordinated ULF-wave Observations, IWSE, The University of Electro- Communications, Tokyo, Japan, May 15-17, 2005
      73. Kiyohumi Yumoto and the MAGDAS Group, MAGDAS Project and Its Application for Earthquake Prediction, Mini-Workshop on Seismo Electromagnetic Precursors of Earthquakes: State of the Art and Research Progress, LIPI Campus, Bandung, Indonesia, September 5, 2005
      74. Kiyohumi YUMOTO and the MAGDAS/CPMN group, MAGDAS Observations for Space Weather, the 23rd Samahang Pisika ng Pilipinas (SPP) Physics Congress, Central Philippine University, Jaro, Iloilo City, Philippines, October 26-28, 2005.
      75. Kiyohumi YUMOTO, MAGnetic Data Acquisition System: MAGDAS/CPMN, UN/ESA/NASA/ UAE Workshop on IHY, Abu Dhabi & Al-Ain, UAE, November 20-23, 2005. Yumoto, K., Uozumi, T., Kohta, H., and MAGDAS Group, MAGDAS project for space weather study, 6th International Conference on Global Change: Connection to the Arctic (GCCA-6), Miraikan, Tokyo, Japan, December 12-13, 2005.
      76. Yumoto, K., Uozumi, T., Kohta, H., and MAGDAS Group, MAGDAS project for space weather study, 6th International Conference on Global Change: Connection to the Arctic (GCCA-6), Miraikan, Tokyo, Japan, December 12-13, 2005. Hideaki Kawano and Dong-Hun Lee, Gradient methods on MHD-simulation data: Ionospheric effects, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 200
      77. Kiyohumi Yumoto and the MAGDAS Group, MAGDAS project and its application for space weather, ILWS Workshop, Hotel Cidade de Goa, Goa, India, February 19-24, 2006
      78. Hideaki Kawano and Dong-Hun Lee, Gradient methods on MHD-simulation data: Ionospheric effects, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 2006
      79. Kiyohumi Yumoto and the MAGDAS Group, MAGDAS project and its application for space weather, ILWS Workshop, Hotel Cidade de Goa, Goa, India, February 19-24, 2006
      80. K. Yumoto, MAGDAS Project and Its Application for Earthquake Prediktion, International Workshop on Seismo-Electromagnetics, Amihan Conference Hall/PAGASA, Quenzon city, Philippines, May22, 2006
      81. Kiyohumi YUMOTO and the MAGDAS group, MAGDAS Project for Space Weather, XIIth IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing, Central Geophysical Observatory, Belsk, Poland, May 19-24, 2006
      82. Kiyohumi YUMOTO and the MAGDAS group, MAGDAS Project and Its Application for Space Weather, COSPAR 2006, Beijing, China, July 16-23, 2006
      83. Yumoto K., Characteristics of Super Magnetic Storms During October, 2003-November, 2004, Western Pacific Geophysics Meeting, Bijing, China, July 24-27, 2006
      84. Kiyohumi YUMOTO, IHY Activities in Japan (1) Framework and Ground-based Observation Project, 2006 IHY Asia/Pacific Regional Planning Meeting and International Space Weather Meridian Circle Program Workshop, Beijing, China, October 9-12, 2006
      85. Kiyohumi YUMOTO, MAGDAS Group, MAGDAS Project for Space Weather Research and Application, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations, 2006年11月1-3日、立教大学
      86. Kiyohumi YUMOTO and MAGDAS Group, MAGDAS Project and its Application for Earthquake Prediction, Intl. WS on Integration of Geophysical Parameters as a set of Large EQ Precursor, Jakarta, Indonesia, November 21, 2006
      87. Kiyohumi YUMOTO and the MAGDAS/CPMN group, Space Weather Activities at SERC for IHY; Magnetic Data Acquisition System (MAGDAS), 2nd UN/NASA Workshop on the International Heliophyusical Year and Basic Science, Bangalore, India, November 27 -December 1, 2006
      88. Kiyohumi YUMOTO and the MAGDAS group, Space Weather Activities at SERC for IHY: (1) Local Education, (2) Global Outreach and (3) Data Base Service, 2nd UN/NASA Workshop on the International Heliophyusical Year and Basic Science, Bangalore, India, November 27 -December 1, 2006
      89. K. Yumoto, C. T. Russell, B. J. Fraser, V. Angelopoulos, I. R. Mann, and P. J. Chi, Ultra MAGNET: A Grobal Magnetometer Network for Space Physics Research, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      90. Kiyohumi YUMOTO, Studies on Geomagnetic Field and the Relationship with the Sun, Solar Physics Seminor 2006, National Observatory, Langkawi, Malaysia, December 26, 2006
      91. Kiyohumi YUMOTO and STPP Sub-committee, IHY Asia/Pacific Regional Planning, International Symposium Asian Collaboration in IPY 2007-2008, Tokyo, Japan, March 1, 2007
      92. Yumoto K., K. Hattori and MAGDAS/CPMN Group, Space and Lithosphere Environment Changes in Indonesia, The 7th Science Council of Asia, Okinawa Convention Center, Japan, 13-17 June, 2007
      93. Yumoto Kiyohumi and MAGDAS Group, Preliminary Results Obtained from MAGDAS Project, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Tokyo, 18-22 June, 2007
      94. Yumoto Kiyohumi and MAGDAS Group, MAGnetic Data Acquisition System (MAGDAS) for Space Weather Study, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Tokyo, 18-22 June, 2007
      95. Yumoto K., T. Uozumi, Y.Hirayama, A. Ikeda and MAGDAS Group, Preliminary Results Obtained from MAGDAS Project, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Japan, 18-22 June, 2007
      96. Yumoto Kiyohumi, Kazunari Shibata, Takashi Sakurai, Masayoshi Kojima, Masaki Fujimoto, Shinichi Watari, IHY (International Heliophysical Year) Activities in Japan, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Japan, 18-22 June, 2007
      97. Yumoto K., C. T. Russell, B. J. Fraser, V. Angelopoulos, I. R. Mann, and P. J. Chi, Ultra Large Terrestrial International Magnetic Array (ULTIMA): A Global Magnetometer Network for Space Physics Research, IAGA at the IUGG General Assembly 2007, Perugia, 2-13 July, 2007
      98. Yumoto K., and MAGDAS/CPMN Group, MAGnetic Data Acquisition System (MAGDAS) for Space Weather Study at SERC, IAGA at the IUGG General Assembly 2007, Perugia, 2-13 July, 2007
      99. Yumoto K. and MAGDAS Group, Seismo-Electromagnetics and Space Weather, Bilateral Seminar Italy-Japan on Electromagnetics in Seismic and Volcanic Areas, Port Plaza Chiba, Japan, 25-27 July, 2007
      100. Yumoto Kiyohumi, Akihiro Ikeda, Manabu Shinohara, Kenro Nozaki and MAGDAS Group, Electric and magnetic field changes at low latitudes during SC, Asia Oceania Geosciences Society 4th annual meeting, Queen Sirikit National Convention Centre, Bangkok, Thai, July 30 - August 4, 2007
      101. Yumoto K., S. Ikemoto, C.M.G. Cardinal and MAGDAS Group, MAGDAS Project for Monitoring Space and Lithosphere Weather, the IV International Conference "Solar-Terrestrial bonds and earthquake precursors", Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, Paratunka, Russia, 14-17 August, 2007
      102. Yumoto K., C. T. Russell, B. J. Fraser, V. Angelopoulos, I. R. Mann, Mark Engebretson and P. J. Chi, Ultra Large Terrestrial International Magnetic Array: A Global Magnetometer Network for STP research, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      103. Yumoto K., A. Ikeda , Y. Hirayama, M. Shinohara and MAGDAS Group, MAGDAS Preliminary Results, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      104. Yumoto K., H. Kawano, A. Yoshikawa, S. Ikemoto, G. Maeda, M. Hayakawa, K. Hattori, Tiger Liu, S. Saroso, M. Husni, D. Widarto, E.G. Ramos, C.M.G. Cardinal, R.E.S. Otadoy and MAGDAS Group, Space Weather and Seismo-Electromagnetics, International Workshop on Seismo-Electromagnetic Phenomena: Recent Progress, Bundung, Indonesia, 6-7 November, 2007
      105. Yumoto K., and MAGDAS Group, MAGnetic Data Acquisition System (MAGDAS) Project and Its Preliminary Results, IHY Africa Space Weather Workshop, Addis Ababa, Ethiopia, 12-16 Nov, 2007
      106. Kiyohumi Yumoto and MAGDAS Group, MAGDAS Project for Space Weather and Its Preliminary Results, VI Latin American School of Geomagnetism-ELAG, Vassouras, Brazil, 25-30 Nov, 2007
      107. Yumoto K., S. Ikemoto, M.G. Cardinal, T. Uozumi, S. Abe, G. Maeda, M. Hayakawa, K. Hattori, K. Shiokawa, J.Y. Liu, M Ruhimat, S. Saroso, M. Husni, D.S. Widrto, D. McNamara, E.G. Ramos, R.E.S. Otadoy, and MAGDAS Group, Space Weather and Seismo-Electromagnetics , International Workshop on Space and Lithosphere Environment Changes in Asia, Kanagawa, Japan , 1 March, 2008
    • Co-author's(282)
      1. Saito, T., K. Yumoto, K. Takahashi, T. Tamura, and T. Sakurai (1979); Solar wind control
        of Pc 3, The_International_Workshop_on_Selected Topics_of_Magnetospheric_Physics,
        held at Tokyo, Japan, March 13-16.
      2. Aoyama, I., F. Toyama, T. Takahashi, T. Saito, and K. Yumoto (1979); "Jikiken" Exos-B
        results; (8) Magnetic field observation, The_International_Workshop_on_Selected_Topics
        of_Magnetospheric_Physics, held at Tokyo, Japan, March 13-16.
      3. Saito, T., and K. Yumoto (1980); A 15-min period geomagnetic pulsation Ps 6 excited by
        an instability of auroral electrojets, The_International_Workshop_on_Relation between
        Laboratory_and_Space_Plasma, held at Tokyo, Japan, April 14-15.
      4. Saito, T., K. Yumoto, M. Seto, S.-I. Akasofu, and E.J. Smith (1981); Substorm and Pi 2
        observed simultaneously at circum-northern Pacific and Alaskan chain stations, The_Fourth
        Scientific_Assembly_of_IAGA, held at Edinburgh, Scotland, August 3-15.
      5. Saito, T., K. Yumoto, K.D. Cole, J. Wards, J. Soegijo, A.J. Chen, and Y. Tanaka (1985);
        Wave characteristics of Pc 3-4 pulsations observed at low-latitude conjugate stations (L 2.15),
        The_5th_General_Assembly_of_IAGA/IAMAP, held at Prague, Czechoslovakia, August
        5-17.
      6. Saito, T., K. Yumoto, B.T. Tsurutani, E.J. Smith, S.-I. Akasofu (1985); IMF controls of
        low-latitude Pc 3-4 pulsations observed at longitudinally separated ground stations, The_5th
        General_Assembly of_IAGA/IAMAP, held at Prague, Czechoslovakia, August 5-17.
      7. Saito, T., K. Yumoto, K. Hirao, I. Aoyama, and M. Seto (1985); IMF observation with the
        Japanese Halley spacecraft "Sakigake" and the solar giant regions, The_5th_General
        Assembly of_IAGA/IAMAP, held at Prague, Czechoslovakia, August 5-17.
      8. Saito, T. and K. Yumoto (1985); Recurrence of substorm activity as controlled by the
        interplanetary structure with solar cycle evolution, The_5th_General_Assembly
        of_IAGA/IAMAP, held at Prague, Czechoslovakia, August 5-17.
      9. Saito, T., K. Yumoto, K. Hirao, T. Nakagawa, and K. Saito (1986); Quasi-parallel model
        for comet Halley near the encounter of Sakigake, The_20th_ESLAB_Symp._on_the
        Exploration of_Halley's_comet, held at Heidelberg, W. Germany, October 27-31.
      10. Saito, T., K. Yumoto, S.-I. Akasofu, and C. Olmsted (1987); Solar cycle variation of the
        three-dimensional structure of the heliomagnetosphere, XIX_General_Assembly_of_IUGG,
        held at Vancouver, Canada, August 9-22.
      11. Saito, T., K. Yumoto, K. Saito, T. Aoki, S. Minami, T. Watanabe, and K. Tomita (1987);
        Structure, disturbances, and models of the comet Halley's ion tail during the 1985/1986
        apparition as compared with Sakigake/IMF observation, XIX_General_Assembly of
        IUGG, held at Vancouver, Canada, August 9-22.
      12. Saito, T., S. Minami, K. Yumoto, E.J. Smith, and L. Zong-Li (1987); Structure and
        dynamics of the plasmasheet of comet Halley, Part 1, kink event on December 31, 1985,
        Chapman_Conference_on_Plasma_Waves and_Instabilities in_Magnetosphere and at
        Comets, held at Sendai/Mt. Zao, October 12-16.
      13. Sutcliffe, P.R., and K. Yumoto, K. (1989); The cavity mode nature of low latitude Pi 2
        pulsations, 6th_Scientific_Assembly_of_IAGA, held at Exeter, UK, July 24-August 4.
      14. S. Kokubun, T. Kitamura, T. Saito, Y. Tanaka, K. Hayashi, and K. Yumoto (1989);
        Japanese global network observation in the 1990s, 6th Scientific_Assembly_of_IAGA,
        held at Exeter, UK, July 24-August 4.
      15. Wolfe, A., and K. Yumoto (1990); Long-term dependence of Pc 3 activity on upstream
        solar wind parameters, 1990_Western_Pacific_Geophysics Meeting, held at Kanazawa,
        Japan, August 21-25.
      16. Takahashi, K., and K. Yumoto (1990); Magnetospheric oscillations caused by a sudden
        impulse during the great magnetic storm of February 1986, 1990_Western_Pacific
        Geophysics Meeting, held at Kanazawa, Japan, August 21-25.
      17. Sakurai, T., K. Takahashi, K. Yumoto, and N. Sato (1990); Observations of magnetic Pi 2
        pulsations on the ground and in the magnetosphere, 1990_Western_Pacific Geophysics
        Meeting, held at Kanazawa, Japan, August 21-25.
      18. Miyaoka, H., T. Hirasawa, K. Yumoto, and Y. Tanaka (1990); Low latitude auroras on
        October 21, 1989, 1990_Western_Pacific_Geophysics Meeting, held at Kanazawa, Japan,
        August 21-25.
      19. Shiokawa, K., and K. Yumoto (1990); Characteristics of auroral electrons at magneto-
        spheric altitude during isolated substorms, Chapman Conference_on_Magnetospheric
        Substorms, held at Hakone, Japan, September 3-7.
      20. Kokubun, S., K. Hayashi, T. Yamamoto, N. Yoshida, T. Oguti, Y. Tanaka, K. Yumoto,
        M. Nishino, N. Nishitani, K. Shiokawa, K. Makita, T. Mukai, T. Saito, T. Watanabe, D.
        McEwen, R. Hirota, A. Brekke, and A. Egeland (1990); Global aurora dynamics campaign,
        Ground-AKEBONO coordination, Chapman_Conference_on_Magnetospheric_Substorms,
        held at Hakone, Japan, September 3-7.
      21. Tanaka, Y., Y. Kato, M. Nishino, K. Yumoto, and K.J.W. Lynn (1991); Conjugate
        measurements of LF/VLF whistler-mode waves in Australia, Pacific_Regional_STEP
        Conference, held at Taipei, ROC, April 10-12.
      22. Tanaka, Y., M. Nishino, K. Yumoto, and K.Y. Lynn (1992); Conjugate measurements of
        LF whistler-mode waves transmitted from Japan in Australia, South_Pacific_STEP
        Workshop, held at Melbourne, Victoria, Australia, February 10-14.
      23. Takahashi, K., and K. Yumoto (1992); Pi2 pulsations observed from AMPTE CCE and
        Kakioka, AGU_Spring_Meeting, Montreal, Canada, May 12-16.
      24. Matsuoka, H., K. Yumoto, and K. Takahashi (1992); Characteristics of compressional Pc 5
        waves observed by AMPTE CCE and GOES-5, Chapman Conference_on_Solar Wind
        Sources_of_Magnetospheric_ULF_Waves, held at Williamsburg, Virginia, USA,
        September 14-18.
      25. Matsuoka, H., K. Yumoto, and K. Takahashi (1992); Correlation study on compressional
        Pc 3-4 waves observed by AMPTE CCE, Chapman_Conference_on_Solar_Wind
        Sources_of_Magnetospheric_ULF_Waves, at Williamsburg, Virginia, USA, September
        14-18.
      26. Shiokawa, K., K. Yumoto, T. Oguti, K. Hayashi, S. Kokubun, Y. Kiyama, and D.J.
        McEwen (1993); Observation of polar-cap sun-aligned arcs from ground-based stations
        in Canada, 7th_Scientific_Assembly_of IAGA, held at Buenosaires, Argentina, August
        8-20.
      27. Shiokawa, K., K. Yumoto, Y. Tanaka, T. Oguti, and Y. Kiyama (1993); Low-latitude
        aurorae observed at Moshiri and Rikubetsu (L=1.6) during magnetic storms on Feb. 26, 27,
        29, and May 10, 1992, 7th Scientific_Assembly_of_IAGA, held at Buenosaires, Argentina,
        August 8-20.
      28. Pilipenko, V.A., K. Yumoto, and E. Fedorov (1993); Damping of ULF waves at low
        latitudes, 7th_Scientific_Assembly_of_IAGA, held at Buenosaires, Argentina, August 8-20.
      29. Fujitani, S., T. Araki, K. Yumoto, K. Shiokawa, Y. Yamada, T. Ichinose, H. Luhr, D.
        Orr, D.K. Milling, C.-F. Liu and D.K.R. Rao (1993); Global Pc 5 of March 24, 1991,
        7th_Scientific_Assembly_of IAGA, held at Buenosaires, Argentina, August 8-20.
      30. Araki, T., S. Fujitani, K. Yumoto, K. Shiokawa, Y. Yamada, S. Tsunomura, T. Ichinose,
        H. Luhr, D. Orr, and C.-F. Liu (1993); A geomagnetic sudden commencement of March
        24, 1991,7th_Scientific_Assembly_of IAGA, held at Buenosaires, Argentina, August 8-20.
      31. Yan, Li, F.W. Menk, B.J. Fraser, D.J. Webster, and K. Yumoto (1994); Properties and
        sources of low and very low latitude Pi 2 pulsations, SCOSTEP_8th_Internal._Symp._on
        Solar_Terrestrial_Physics, held at Sendai Japan, June 5-10.
      32. Araki, T., S. Fujitani, K. Yumoto, K. Shiokawa, S. Tsunomura, Y. Yamada, T. Ichinose,
        D. Orr, D.K. Milling, H. Luhr, H. Singer, G. Rostoker, and C.F. Liu (1994); Anomalous
        sudden commencement on March 24, 1991, SCOSTEP_8th_Internal._Symp._on
        Solar_Terrestrial Physics, held at Sendai, Japan, June 5-10.
      33. Osaki, H., K. Yumoto, K. Shiokawa, K. Takahashi, T. Sakurai, S.I. Solovyev, G.
        Krymskij, E.F. Vershinin, V.F. Osinin, and 210o MM Magnetic Observation Group
        (1994); High- and low-latitude Pi 2 magnetic pulsations observed at the 210o MM chain
        stations, SCOSTEP 8th_Internal._Symp._on_Solar_Terrestrial_Physics, held at Sendai,
        Japan, June 5-10.
      34. Zhang, Y., D.J. McEwen, K. Yumoto, K. Shiokawa, and K. Hayashi (1994); Studies of
        polar auroras from near the north magnetic pole, SCOSTEP 8th_Internal._Symp. on_Solar
        Terrestrial_Physics, held at Sendai, Japan, June 5-10.
      35. Hayashi, K., K. Shiokawa, N. Nishitani, M. Nishino, K. Yumoto, S. Kokubun, K.
        Makita, T. Watanabe, D.J. McEwen, G. Rostoker, D. Belian, and A. Egeland (1994);
        Auroral dynamics from STEP polar network observation, SCOSTEP_8th_Internal._Symp.
        on_Solar_Terrestrial_Physics, held at Sendai, Japan, June 5-10.
      36. Shiokawa, K., K. Yumoto, Y. Tanaka, T. Katoh, M. Satoh, Y. Ikegami, M. Sera, Y.
        Kiyama, and M. Tokumaru (1994); Unmanned optical measurements of low-latitude
        auroras in Hokkaido, Japan during STEP period, SCOSTEP_8th_Internal._Symp._on
        Solar Terrestrial Physics, held at Sendai, Japan, June 5-10.
      37. Shiokawa, K., K. Yumoto, S. Kokubun, T. Katoh, M. Satoh, Y. Ikegami, M. Sera, K.
        Hayashi, T. Oguti, D.J. McEwen, and Y. Kiyama (1994); Unmanned optical measurements
        of high-latitude auroras in Canadian Arctic during STEP period, SCOSTEP_8th
        Internal._Symp._on_Solar Terrestrial_Physics, held at Sendai, Japan, June 5-10.
      38. Shiokawa, K., K. Yumoto, Y.. Tanaka, T. Oguti, Y. Kiyama, A. Matsuoka, H.
        Hayakawa, P.T. Newell, and C.-I. Meng (1994); Ground-based observations of
        low-latitude auroras and related particle observations from satellites, 30th_COSPAR
        Scientific_Assembly, held at Hamburg, Germany, on 11-21 July.
      39. Matsuoka, H., K. Yumoto, K. Takahashi, K. Shiokawa, S. Kokubun, T. Yamamoto, S.I.
        Solovyev, G. Krymskij, E.F. Vershinin, and V.F. Osinin (1994); Observations of
        compressional ULF waves with GEOTAIL and 210o MM magnetic network, Western
        Pacific_Geophysics_Meeting, held at Hong Kong, on July 25-29.
      40. Takahashi, K., K. Yumoto, and B.J. Anderson (1994); A statistical study of Pi 2 pulsations
        using simultaneous magnetic field observations from AMPTE CCE and Kakioka, Western
        Pacific_Geophysics_Meeting, held at Hong Kong, on July 25-29.
      41. Shiokawa, K., K. Yumoto, N. Nishitani, P.T. Newell, C.-I. Meng, T. Abe, K. Oyama, A.
        Matsuoka, and H. Hayakawa (1994); The substorm-associated low-latitude aurora, Unusual
        substorm onset at L=2.5-4, AGU_Fall_Meeting, held at San Francisco, California, on
        December 5-9.
      42. Araki, T., D. Fujitani, K. Yumoto, K. Shiokawa, D. Orr, D.K. Milling, H. Luhr, H.
        Singer, S. Tsunomura, Y. Yamada, and T. Ichinose (1994); Instantaneous propagation of
        geomagnetic sudden commencement, A case study of March 24, 1991 event, AGU_Fall
        Meeting, held at San Francisco, California, on December 5-9.
      43. Akasofu, S.-I., J.V. Olson, K. Yumoto, K. Shiokawa, Y. Tanaka (1994); Auroral and
        equatorial electrojets; AGU_Fall_Meeting, held at San Francisco, California, on December
        5-9.
      44. Li Yan., B.J. Fraser, F.W. Menk, C.L. Waters, D.J. Webster, W. Allan and K. Yumoto
        (1995); Propagation of Pi 2 pulsations wave energy to low and very low latitudes,
        The_ninth_Intl._Symp._on_Equatorial Aeronomy_(ISEA),_Including_the Middle
        Atmosphere, held at Bali, Indonesia, on March 20-24.
      45. Akasofu, S.-I., J.V. Olson, S.Wei, K. Yumoto, K. Shiokawa, and Y. Tanaka (1995);
        Auroral and equatorial electrojets, The_ninth_Intl. Symp._on_Equatorial_Aeronomy
        (ISEA),_Including_the_Middle_Atmosphere, held at Bali, Indonesia, on March 20-24.
      46. Kawano, H., A. Nishida, M. Fujimoto, T. Mukai, S. Kokubun, T. Yamamoto, T.
        Terasawa, Y. Saito, S. Machida, and K. yumoto (1995); Quasi-stagnant plasmoids observed
        with Geotail on October 15, 1993, IUGG XXI_General_Assembly held at Boulder,
        Colorado, on July 2-14.
      47. Horita, R.E., T. Oguti, K. Yumoto, N. Nishitani, M. Nishino, S. Kokubun, T. Yamamoto,
        T. Watanabe, T. Kitamura and O. Saka (1995); Observations of pulsating aurorae and VLF
        chorus, IUGG_XXI_General Assembly, held at Boulder, Colorado, on July 2-14.
      48. Li, Y., F.W. Menk, B.J. Fraser, D.J. Webster, and k. Yumoto (1995); Properties and
        sources of low and very low latitude pi 2 pulsations, IUGG_XXI_General_Assembly, held
        at Boulder, Colorado, on July 2-14.
      49. Hayashi, K., K. Shiokawa, N. Nishitani, K. Yumoto(1995); Types of auroral dynamics
        pattern accompanying Pc 5 variations, IUGG_XXI_General Assembly, held at Boulder,
        Colorado, on July 2-14.
      50. Fujii, I., H. Utada, and K. Yumoto (1995); Averaged distribution of electrical conductivity
        of the Philippine sea plate, IUGG_XXI_General_Assembly, held at Boulder, Colorado, on
        July 2-14.
      51. Araki, T., S. Fujitani, K. Yumoto, K. Shiokawa, D. Orr, D.K. Milling, G. Rostoker, H.
        Singer, S. Tsunomura, and Y. Yamada (1995); Almost instantaneous propagation mode of
        geomagnetic sudden commencement through the Earth-ionosphere waveguide, IUGG
        XXI_General_Assembly, held at Boulder, Colorado, on July 2-14.
      52. Hayashi, K., K. Shiokawa, K. Yumoto, D. Harris, and D.J. McEwen (1995); Global
        monitoring of Pc 1-pulsation storm from central polar cap, IUGG_XXI_General_Assembly,
        held at Boulder, Colorado, on July 2-14.
      53. Matsuoka, H., K. Takahashi, K. Yumoto, S.I. Solovyev, and E.F. Vershinin (1995);
        Spatial structure of the phase of Pc 3 pulsations observed by 210o MM magnetometer
        network, IUGG_XXI_General_Assembly, held at Boulder, Colorado, on July 2-14.
      54. Osaki, H., K. Yumoto, K. Shiokawa, Y. Tanaka, S.I. Solovyev, G. Krymskij, E.F.
        Vershinin, V.F. Oshinin, Obay Sobari, and Mamat Ruhimat (1995); Comparison between
        Pi 2 amplitude and substorm bay magnitude, IUGG_XXI_General_Assembly, held at
        Boulder, Colorado, on July 2-14.
      55. Matsuoka, H., K. Takahashi, K. Yumoto, S. Kokubun, T. Yamamoto, S.I. Solovyev, and
        E.F. Vershinin (1995); Phase and amplitude structure of Pc 3 magnetic pulsations based on
        multipoint observations, AGU Fall_Meeting, held at San Francisco, California, on
        December 10-15.
      56. Pilipenko, V., M. Vellante, and K. Yumoto (1996); Ground-based monitoring of
        magnetospheric plasma by ULF hydromagnetic spectroscopy, EGE_Meeting, held in
        Germany on May 6-7, 1996.
      57. Watanabe, T., M. Seto, and K. Yumoto (1996); A new approach for determining induction
        arrow, 1996_Western_Geophysics_Meeting, held at Brisbane, Australia, on July 23-27.
      58. Itonaga, M., A. Yoshikawa, T.-I. Kitamura, and K. Yumoto (1996); Three-dimensional
        propagation of MHD waves in the inner magnetosphere, 1996_Western_Geophysics
        Meeting, held at Brisbane, Australia, on July 23-27.
      59. Yoshikawa, A., M. Itonaga, and K. Yumoto (1996); Two-step self-mode conversion effect
        of shear Alfven waves at the ionosphere, 1996 Geophysics_Meeting, held at Brisbane,
        Australia, on July 23-27.
      60. Tanaka, Y-M., K. Kitamura, A. Yoshikawa, K. Yumoto, K. Shiokawa, B.J. Fraser, F.W
        Menk, R.J. Morris, J.V. Olson, and S.-I. Akasofu (1996); North/south asymmetry of Pc
        3-5 observed at high- and low-latitude conjugate pairs along the 210o magnetic meridian,
        1996_Western Geophysics_Meeting, held at Brisbane, Australia, on July 23-27.
      61. Sakurai, T., Y. Tonegawa, K. Yumoto, S. Kokubun, T. Yamamoto, T. Mukai, and K.
        Tsuruda (1996); Substorm onset signature in the near Earth magnetotail, Chapman
        Conference on the Earth's Magnetotail; New Perspective, held at Kanazawa, Japan on
        November 5-9, 1996.
      62. Yagova, N., and K. Yumoto (1996); Interpretation of ULF spatial-spectral structure;
        Success and inadequacy of FLR theory, European Geophys. Society Assembly, held
        in Vieana.
      63. Nozaki, K., H. Utada, and K. Yumoto (1997); Geomagnetically induced voltage obser-
        vation system of the Transpac-2 cable, Intl. Workshop on Scentific Use of Submarine
        Cables, held at Okinawa on Feb. 25-28, 1997.
      64. Vershinin, E.F., A.V. Buzevich, K. Yumoto, and Y. Tanaka (1997); Correlations of
        seismic activity with electromagnetic emssions and variations in Kamchatka region,
        International Workshop on Seismo Electromagnetics, held at the University of
        Electro-Communication at Chofu, on March 3-5, 1997.
      65. Miyahara, S., Y. Tanaka, K. Saita, and K. Yumoto (1997); ULF magnetic variations
        associated with the Guam Earthquake of 8 August 1993, based on the 210 MM magnetic
        observations, International Workshop on Seismo Electromagnetics, held at the University of
        Electro-Communication at Chofu, on March 3-5, 1997.
      66. Watanabe, T., M. Seto, and K. Yumoto (1997); A new approach to determine induction
        arrow: Extension of the method by Rikitake and Yokoyama, Abstracts of 8th Scientific
        Assembly of IAGA, held at Uppsala, on August 4-15,1997.
      67. Sibeck, D G, K Takahashi, K Yumoto, and G D Reeves(1997); A relationship between
        transient signatures in equatorial dayside ground magnetograms and substorm/
        pseudosubstorm onset,Abstracts of 8th Scientific Assembly of IAGA,held at Uppsala, on
        August 4-15,1997.
      68. Tachihara H., T Yamada, K Yumoto, R Fujii, T Kikuchi, and R Woodman(1997); Global
        characteristics of DP2 and sc-type disturbances observed in space and on the ground,
        Abstracts of 8th Scientific Assembly of IAGA, held at Uppsala, on August 4-15, 1997.
      69. Kitamura, K., M Shinohara, H Tachihara, T-I Kitamura, K Yumoto, and The 210 MM and
        Equatorial Magnetic Observation Group(1997); DL- and DP-fields of sc observed along the
        210 magnetic meridian and at the GOES satellite on Nov.3,1993, Abstracts of 8th Scientific
        Assembly of IAGA, held at Uppsala, on August 4-15,1997.
      70. Sakurai,T., Y Tonegawa, K Yumoto, T Yamamoto, T Mukai, and K Tsuruda(1997);
        Frequent occurrences of impulsive bursts in ULF wave activities observed by the Geotail
        satellite in the dayside magnetopause, Abstracts of 8th Scientific Assembly of IAGA, held at
        Uppsala, on August 4-15,1997.
      71. Tonegawa,Y., T Sakurai, K Yumoto, S Kokubun, K Turuda, T Mukai, and N
        Sato(1997); Quasi periodic crossings of magnetopause by the GEOTAIL satellite and ULF
        waves simultaneously observed on the ground, Abstracts of 8th Scientific Assembly of
        IAGA, held at Uppsala, on August 4-15,1997.
      72. Baishev, D G, S I Solovyev, N E Molochushkin, E S Barkova, and K Yumoto (1997);
        Excitation of Pc 4-5 geomagnetic pulsations in the evening hours during a formation of large
        -scale diffuse luminosity waves, Abstracts of 8th Scientific Assembly of IAGA, held at
        Uppsala, on August 4-15,1997.
      73. Baishev, D G, E S Barkova, S I Solovyev, K Yumoto, J Kangas, A G Yahnin (1997); A
        character and reason of the Pc 1, IPDP frequency growth during a substorm, Abstracts of
        8th Scientific Assembly of IAGA, held at Uppsala, on August 4-15, 1997.
      74. Shinohara, M., K Yumoto, A.Yoshikawa, H.Tachihara, O. Saka, S.I. Solvyev, E.F.
        Vershinin, The 210 degree MM Magnetic Observation Group (1997); Wave characteristics of
        Pi 2 Pulsations along he 210 degree magnetic meridian, Abstracts of 8th Scientific Assembly
        of IAGA, held at Uppsala, on August 4-15,1997.
      75. Tanaka.Y, M.Shinohara, H.Tachihara, K.Yumoto, S.I.Solvyev, E.F.Vershinin, and The
        210 degree MM Magnetic Observation Group (1997); Global wave characteristics of H-and
        D-component Pc 3 magnetic pulsations the 210 degree MM network, Abstracts of 8th
        Scientific Assembly of IAGA, held at Uppsala, on August 4-15, 1997.
      76. Colqui, R., T-I Kitamura, H Tachihara, K Yumoto, N B Trivedi, and Jose Marques da
        Costa(1997); Dynamic behavior of the EEJ current sructure at the Brazillian dip equator,
        Abstracts of 8th Scientific Assembly of IAGA, held at Uppsala, on August 4-15,
        1997.
      77. Trivedi, N.B., B.R. Arora, L.E.A. Vieira, D.R.K. Rao, and K. Yumoto (1997);
        Ionospheric modulation of the Pc 5 geomagnetic pulsations, Expanded abstracts of 5th
        International Congress of the Brazilian Geophysical Society, held at Sao Paulo, Brasil, on
        Sept. 28-Oct. 2, 1997
      78. Okada, K., O. Watanabe and K. Yumoto (1998); A new substorm current wedge model
        based on the magnetic field reconfiguration at synchronous orbit, Intl. Conf. on Substorms-4,
        held on March 9-13, at Lake Hamana, Japan.
      79. Li., Y., K. Yumoto, M. Itonaga, M. Shinohara, T.-I., Kitamura, the 210 MM network
        group and the dip equator network group (1998); Equatorial Pi 2s as indicator of substorms
        and relation between dayside and nighside Pi 2s, Intl. Conf. on Substorms-4, held on March
        9-13, at Lake Hamana, Japan.
      80. Uozumi, T., K. Yumoto, S.I. Solovyev, and E.F. Vershinin (1998); Characteristics of
        magnetic energy transfer from high to low latitude by Pi 2 pulsations, Intl. Conf. on
        Substorms-4, held on March 9-13, at Lake Hamana, Japan.
      81. Watanabe, O., O. Saka, K. Yumoto, D.N. Baker, and G.D. Ressves (1998); ULF
        fluctuations in substorm manifestations, Intl. Conf. on Substorms-4, held on March 9-13, at
        Lake Hamana, Japan.
      82. Solovyev, S.I., D.G. baishev, E.S. Barkova, N.E. Molochushkin, A.A. Fedorov, K.
        Yumoto, and K. Shiokawa (1998); Excitation of Ps 6 geomagnetic pulsations relative to
        north-south aurora structures in the evening-premidnight sector of the auroral zone, Intl.
        Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan.
      83. Engebretson, E., W.J. Hughes, K. Yumoto, and S. Solovyev (1998); Coupling between
        nightside auroral activity and ULF disturbances in the dayside cusp, Intl. Conf. on
        Substorms-4, held on March 9-13, at Lake Hamana, Japan.
      84. Baishev, D.G., E.S. Barkova, S.I. Solovyev, K. Yumoto, and J. Kangas (1998);
        Response of the Eastwards electrojet and IPDP geomagnetic pulsations to the substorm
        expansion phase, Intl. Conf. on Substorms-4, held on March 9-13, at Lake Hamana, Japan.
      85. Kunitake, M., K. Igarashi, H., Tachihara, and K. Yumoto(1998); The effect of
        quasi-two-day wave of the neutral wind on electrodynamical processes in the ionosphere,
        32th COSPAR Scientific Assembly, held on July 13-18, at Nagoya, Japan.
      86. Nozawa, H., H. Misawa, A. Morioka, S. Takahashi, S. Okano, R. Sood, and K.
        Yumoto(1998); Variability of {SII} emission from the IO plasma torus, 32th COSPAR
        Scientific Assembly, held on July 13-18, at Nagoya, Japan.
      87. Takahashi, S., H. Misawa, A. Morioka, H. Nozawa, R. Soor, S. Okano, and K.
        Yumoto(1998); Distribution of sodium cloud near IO and in the inner Jovian
        magnetosphere,32th COSPAR Scientific Assembly, held on July 13-18, at Nagoya, Japan.
      88. Matsuoka,H., K. Yumoto, K. Takahashi, K. Kokubun, T. Yamamoto, S.I. Solovyev, E.F.
        Vershinin, T. Nagai, H. Matsumoto, and T. Goka (1998); The relationship between
        upstream waves and Pc 3-4 pulsations in the magnetosphere, 32th COSPAR Scientific
        Assembly, held on July 13-18, at Nagoya, Japan.
      89. Okada, K. O. Watanabe, and k. Yumoto (1998); A new substorm current wedge model by
        means of the magnetic field reconfigurations at the synchronous orbit, 32th COSPAR
        Scientific Assembly, held on July 13-18, at Nagoya, Japan.
      90. Yoshikawa, A., and k. Yumoto (1998); Studies on the ionospheric divergent Hall current,
        32th COSPAR Scientific Assembly, held on July 13-18, at Nagoya, Japan.
      91. Meng. C.-I., K. Liou, P.T. Newell, A.T. Lui, M. Brittnacher, G. Parks, and K. Yumoto
        (1998); Comparison of magnetospheric substorm signature with simultaneous satellite and
        ground based observations, 1998 Western Pacific Geophysical Meeting, held at Taipei on
        July 21-24.
      92. Liu, J.Y, K. Yumoto, and W. Chen (1998); Using satellite and ground-based measurements
        to study pulsations in the magnetosphere and ionosphere, 1998 Western Pacific
        Geophysical Meeting, held at Taipei on July 21-24.
      93. Kitamura, K., K. Yumoto, O. Watanabe, E.F. Vershinin, and 210 MM Magnetic
        Observation Group (1998); A seasonal variation of Chapman-Ferraro currents caused by
        sc/si, 1998 Western Pacific Geophysical Meeting, held at Taipei on July 21-24.
      94. Itonaga, M., A. Yoshikawa, K. Yumoto, and S. Fujita (1998); Transient response of the
        non-uniform equatorial ionosphere to the ionospheric current of polar origin, 1998 Western
        Pacific Geophysical Meeting, held at Taipei on July 21-24.
      95. Matsuoka, H., K. Yumoto, K. Takahashi, S. Kokubun, T. Yamamoto, S.I. Solovyev,
        E.F. Vershinin, T. Nagai, H. Matsumoto, and T. Goka (1998); Transmission of upstream
        wave energy into the inner magnetosphere,1998 Western Pacific Geophysical Meeting, held
        at Taipei on July 21-24.
      96. Tanaka, Y.-M., K. Yumoto, H. Tachihara, T.-I. Kitamura, S.I. Solovyev, E.F. Vershinin,
        and B.J. Fraser( 1998); Equivalent ionospheric current of Pc 3 pulsations in the 210 MM
        and the equatorial magnetometer netowarks, 1998 Western Pacific Geophysical Meeting,
        held at Taipei on July 21-24.
      97. Watanabe, T., M. Seto, T. Nakagawa, K. Yumoto, and 210 MM Magnetic Observation
        Group(1998); Pc 3 pulsation at subtropical latitude, 1998 Western Pacific Geophysical
        Meeting, held at Taipei on July 21-24.
      98. Li., Y., K. Yumoto, M. Itonaga, T.-I. Kitamura, and the CPMN Group(1998); The
        spectral content of global Pi 2 magnetic pulsations, 1998 Western Pacific Geophysical
        Meeting, held at Taipei on July 21-24.
      99. Hattori, K., M. Hayakawa, K. Yumoto, T. Nagao, and S. Uyeda(1998); ULF magnetic
        emissions associated with 1997 Kagoshima earthquakes, 1998 Western Pacific
        Geophysical Meeting, held at Taipei on July 21-24.
      100. Yagova, N.V., V.A. Pilipenko, and K. Yumoto(1998); Variations of geomagnetic ULF
        noise and seismicity, 1998 Western Pacific Geophysical Meeting, held at Taipei on July
        21-24.
      101. Vieira, L.E.A., N.B. Trivedi, B.R. Aurora, D.R.K. Rao and K. Yumoto(1998);
        World-wide study of Pc 5 geomagnetic pulsations of March 24, 1991, Fifth Latin-
        American Conference on space geophysics (V-COLAGE), held at San Jose, Costa Rica,
        on November 3-7.
      102. Zanandrea, A., J.M. Da Costa, S.L.G. Dutra, N.B. Trivedi, T. Kitamura, K. Yumoto, H.
        Tachihara, and M. Shinohara(1998); Pc 3-5 geomagnetic micropulsations at very low
        latitudes, in Brazil, Fifth Latin-American Conference on space geophysics (V-COLAGE),
        held at San Jose, Costa Rica, on November 3-7.
      103. Shinohara, M., K. Yumoto, H. Nagaishi, T-I. Kitamura, N.B. Trivedi, J.M. Da Costa,
        and N.J. Shuch (1998); Dependence of equatorial enhancements of magnetc pulsations on
        the wave frequency and the geomagnetic latitude, Fall Meeting of AGU at San Francisco, on
        December 6-10.
      104. Kunitake, M., K. Igarashi, I. Nishimuta, H. Tachihara, and K. Yumoto (1998); The effect
        of quasi-two-day wave of the neutral wind on the geomagnetic variations and on the
        ionospheric variations, Fall Meeting of AGU at San Francisco, on December 6-10.
      105. Araki, T., T. Takeuchi, H. Yang, A. Kadokura, O. Rasmussen, K. Yumoto, K.
        Shiokawa, H. Luehr, D. Orr, and D. Milling (1998); Meaning of onset time of geomagnetic
        variations----Existence of almost instantaneous horizontal propagation mode on the
        ground, Fall Meeting of AGU at San Francisco, on December 6-10.
      106. Makarov, G.A., S.I. Solovyev, D.G. Baishev, M.J. Engebretson, J.L. Posch, W.J.
        Hughes, K. Yumoto and V.A. Pilipenko (1998); Distribution and dynamics of ionospheric
        currents during sharp changes of solar wind and IMF parameters, Fall Meeting of AGU at
        San Francisco, on December 6-10.
      107. Solovyev, S.I., E.S. Barkova, D.G. Baishev, M.J. Engebretson, J.L. Posch, W.J.
        Hughes, K. Yumoto and V.A. Pilipenko (1998); Structure of disturbances in the dayside
        and nightside ionosphere during periods of negative IMF Bz, Fall Meeting of AGU at
        San Francisco, on December 6-10.
      108. Ohtani, S., F. Creutzberg, T. Mukai, H. Singer, A. Lui, M. Nakamura, P. Prikryl, K.
        Yumoto, G. Rostoker, T. Nagai, M. Fujimoto, and S. Kokubun (1998); Substorm onset
        timing; The December 31, 1995, event, Fall Meeting of AGU at San Francisco, on
        December 6-10.
      109. Lui, A.T., D.J. Williams, R.W. McEntire, K. Liou, P.T. Newell, C.I. Meng, S. Ohtani,
        N.J. Fox, R.P. Lepping, W.R. Paterson, J.B. Sigwarth, L.A. Frank, S. Kokubun, M.
        Brittnacher, G.K. Parks, T. Moretto, N.C. Maynardand K. Yumoto (1998); Conjunction of
        tail satellites for substorm study; ISTP event of January 2, 1997, Fall Meeting of AGU at
        San Francisco, on December 6-10.
      110. Li, Y., K. Yumoto, S. Ohtani, K. Liou, and C. Meng (1998); Pi 2 pulsations as indicators
        of the substorms, Fall Meeting of AGU at San Francisco, on December 6-10.
      111. Yagova, N., V. Pilipenko, E. Fedorov and K. Yumoto (1999); Influence of ionospheric
        conductivity on middle and low latitude Pc3-4 pulsations, XXII IUGG General Assembly,
        at Birmingham, UK, on July 18-30.
      112. Takahashi, K., B.J. Anderson, J.B. Gary, K. Yumoto (1999); UARS observation of a Pi2
        pulsations at 600km altitude, XXII IUGG General Assembly, at Birmingham, UK, on July
        18-30.
      113. Li. Yan, K. Yumoto, CPMN Group (1999); Local time dependence of Pi2 pulsations; A
        statistical Study, XXII IUGG General Assembly, at Birmingham, UK, on July 18-30.
      114. Solovyev, S. I., D. G. Baishev, N. E. Molochushkin, A. A. Fedorov, K. Yumoto, M. J.
        Engebretson, and W. J. Hughes (1999); Excitation of Ps6 Pulsations and Formation of
        Auroral Structures Stretched along the Meridian During Disturbance, , XXII IUGG General
        Assembly, at Birmingham, UK, on July 18-30.
      115. Tanaka, Y. M., K. Yumoto, A. Yoshikawa, T. I. Kitamura, B. J. Fraser, and D. Cole, (1999); Sunrise
        Effect on Very Low-Latitude Pc3 Pulsations, XXII IUGG General Assembly, at Birmingham, UK,
        on July 18-30.
      116. Waters, C., M. Sciffer, B. Fraser, K. Foulkes, K. Brand, O. Sakaland, and K. Yumoto,
        (1999); The Phase Structure of Equatorial and Very Low Latitude ULF Waves Across Dawn,
        XXII IUGG General Assembly, at Birmingham, UK, on July 18-30.
      117. Shinohara, M., K. Yumoto, H. Nagaishi, T. Kitamura, N.B. Trivedi, J.M. Da Costa and
        N.J. Shuch (1999); Frequency and Latitudinal Dependence of Equatorial Enhancement of
        Magnetic Pulsations, XXII IUGG General Assembly, at Birmingham, UK, on July 18-30.
      118. Yoshikawa, A., K. Yumoto, and H. Fukuoka (1999); ULF Waves and Ionosphere:
        Multi-Step Mode Conversion between Divergent and Rotational Electric Field by the
        Ionospheric Hall Effect, XXII IUGG General Assembly, at Birmingham, UK, on July 18-30.
      119. Sakurai, T., Y. Tonegawa, T. Kitagawa, K. Yumoto, S. Kokubun, and T. Mukai (1999); Dayside
        Magnetopause ULF Waves Observed by GEOTAIL, XXII IUGG General Assembly, at Birmingham,
        UK, on July 18-30.
      120. Kitamura, K., K. Yumoto, and the CPMN Group (1999); Propagation Mechanism of
        Preliminary Reverse Impulse of SC/SI, XXII IUGG General Assembly, at Birmingham, UK,
        on July 18-30.
      121. Uozumi, T., K. Yumoto, and the CPMN group (1999): Longitudinal Propagation
        Characteristics of Pi2, XXII IUGG General Assembly, at Birmingham, UK, on July 18-30.
      122. Araki, T., K. Yumoto, K. Shiokawa, and D. Orr (1999); Propagation of Geomagnetic
        Sudden Commencement (SC), XXII IUGG General Assembly, at Birmingham, UK, on July
        18-30.
      123. Keyun Tang, Fenglin Peng, Zuoli Ning and Shaofeng Yang, Y.Tanaka and K. Yumoto
        (1999); ULF/VLF /ELF Observations during the Solar Total Eclipse, XXII IUGG General
        Assembly, at Birmingham, UK, on July 18-30.
      124. Yagova, N., Viacheslav Pilipenko and Kiyohumi Yumoto (1999); Statistical parameters
        of ULF electromagnetic noises and seismicity, JSA15 Electromagnetic methods for monitoring
        earthquakes and volcanoes.
      125. Hattori, K., K. Akinaga, M. Hayakawa, K.Yumoto, T. Nagao, S. Uyeda(1999); ULF
        Magnetic Field Anomaly Preceding 1997 Kagoshima Earthquakes and 1998Iwate Earthquake,
        URSIーGA, GH1 session, held at Tronto, on August 13-21, 1999.
      126. Yamamoto, A., T. Okuzawa, and K. Yumoto (2000); Spectral Components of GPS-TEC
        Fluctuations Correlated with The Geomagnetic Variations: Possible Contribution from The
        Altitudes of > 1 RE, Western Pacific Geophysical Meeting, held at Tokyo, on Jun 27-30, 2000.
      127. Akinaga, Y. K. Hattori, M. Hayakawa, and K. Yumoto, ULF emissiuons associated with
        earthquakes, Abstracts of International Workshop on Seism Electromagnetics, 2000 of
        NASDA, held at Chofu, Tokyo, on Sept. 19-22, 2000.
      128. Yagova, N., K. Yumoto, and K. Saita, Spatial and temporal variations of amplitude and
        polarization of geomagnetic pulsations and seismicity, Abstracts of International Workshop
        on Seism Electromagnetics, 2000 of NASDA, held at Chofu, Tokyo, on Sept. 19-22, 2000.
      129. Yagova, N., K. Yumoto, K. Hattori, K. Saita, T. Nagano, Y. Sasai, M. Kasahara, and M.
        Takada., Regional and local variations of geomagnetic and geoelectric noise in
        Ultra-Low-Frequency range anf their relation to seismic activity, Abstracts of International
        Workshop on Seism Electromagnetics, 2000 of NASDA, held at Chofu, Tokyo, on Sept.
        19-22, 2000.
      130. Saita, K., K. Yumoto and CPMN group, Variations of the geomagnetic transfer functions
        associated with Kagoshima earthquakes in 1996 and 1997, Abstracts of International
        Workshop on Seism Electromagnetics, 2000 of NASDA, held at Chofu, Tokyo, on Sept.
        19-22, 2000.
      131. Hattori, K., I. Takahashi, P. Maltsev, Y. Akinaga, M. Hayakawa, K. Yumoto, Y.
        Kopytenko, V. Korepanov, H. Iwasaki, T. Nagao, S. Uyeda, and O. Molchanov, Ulf
        geomagnetic observation and data analysis at RIKEN IFREQ/NASDA-UEC, Abstracts of
        International Workshop on Seism Electromagnetics, 2000 of NASDA, held at Chofu, Tokyo,
        on Sept. 19-22, 2000.
      132. Buzevich, A.V., anfd K. Yumoto, The connection of variations of geomagnetic and
        atmospheric electric Earth&s fields with the Kamchatka seismicity against the background of
        the geliomagnetospheric processes, Abstracts of International Workshop on Seism
        Electromagnetics, 2000 of NASDA, held at Chofu, Tokyo, on Sept. 19-22, 2000.
      133. YAMAGUCHI, R., , H. Kawano, S. Ohtani, K. Yumoto, S. Kokubun, T. Mukai, CPMN
        group, RELATIONSHIP BETWEEN SUBSTORM MAGNITUDE AND SUBSTORM
        ENERGY STORAGE-RELEASE PROCESSES, Abstract of the First S-RAMP Conference,
        held at Sapporo, on Oct. 2-6, 2000.
      134. NOSE, M., A. T. Y. Lui, S. Ohtani, B. H. Mauk, R. W. McEntire, D. J. Williams, T. Mukai, K.
        Yumoto , ACCELERATION OF OXYGEN IONS OF IONOSPHERIC ORIGIN IN THE NEAR-
        EARTH MAGNETOTAIL DURING SUBSTORMS, the First S-RAMP Conference, held at
        Sapporo, on Oct. 2-6, 2000.
      135. KAWANO, H., G. Le, C. T. Russell, J. Raeder, G. Rostoker, R. Yamaguchi, K. Yumoto,
        CPMN group, MAGNETOSPHERE-IONOSPHERE COUPLING EFFECTS DURING
        SUBSTORMS IN THE POLAR MAGNETOSPHERE, Abstract of the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      136. SOLOVYEV, S.I., D.G. Baishev, E.S. Barkova, andK. Yumoto, POSSIBLE SCENARIO
        OF HIGH- LATITUDE Pi2 PULSATION EXCITATION, the First S-RAMP Conference, held
        at Sapporo, on Oct. 2-6, 2000.
      137. TANAKA, Y.-M., K. Yumoto, A. Yoshikawa, T.-I. Kitamura, B. J. Fraser, S. I.
        Solovyev, E. F.Vershinin,THE WAVE CHARACTERISTICS OF THE GLOBAL
        COHERENT PC 3, Abstract of the First S-RAMP Conference, held at Sapporo, on Oct.
        2-6, 2000.
      138. SAKURAI, T., Y. Tonegawa, Y. Shinkai, K. Yumoto, S. Kokubun, K. Tsuruda, and T. Mukai ,
        ENERGETICS OF ULF WAVES IN THE MAGNETO- AND ONO-SPHERES, the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      139. Shiokawa, K., and K. Yumoto, COMPARISON OF AURORAL LUMINOSITY
        VARIATION AND MULTIPLE PI PULSATIONS AT A SUBSTORM ONSET USING
        1-SEC RESOLUTION GROUND-BASED DATA, Abstract of the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      140. NAKATA , H., S. Fujita, A. Yoshikawa, M. Itonaga, and K. Yumoto, GROUND
        MAGNETIC PERTURBATIONS ASSOCIATED WITH THE STANDING ALFVEN
        OSCILLATION IN THE MAGNETOSPHERE-IONOSPHERE SYSTEM, the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      141. YOSHIKAWA, A., R. Fujii , T. Iijima, M. Itonaga, and K. Yumoto, ROLE OF
        IONOSPHERIC HALL EFFECT ON THE ENERGY BALANCE IN THE
        MAGNETOSPHERE- IONOSPHERE COUPLED SYSTEM, Abstract of the First
        S-RAMP Conference, held at Sapporo, on Oct. 2-6, 2000.
      142. Uozumi , T., K. Yumoto, H. Kawano, A. Yoshikawa, J. V. Olson, S.-I. Akasofu, S. I.
        Solovyev, E. F. Vershinin, S. Ohtani, K. Liou and C.-I. Meng, Pi 2 source region deduced
        from the CPMN dat, Abstract of the First S-RAMP Conference, held at Sapporo, on Oct.
        2-6, 2000.
      143. OBANA, Y. , A. Yoshikawa, K. Yumoto, J.V.Olson, and R.J.Morris, EFFECTS OF THE
        IONOSPHERIC CONDITIONS ON THE ULF PULSATIONS OBSERVED AT
        GEOMAGNETIC CONJUGATE PAIR STATIONS, Abstract of the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      144. BAISHEV, D.G. , S.I. Solovyev, E.S. Barkova, K. Yumoto, and K. Shiokawa,
        REGULARITIES OF AURORAL STREAMER FORMATION AND THEIR
        RELATIONSHIP TO IMPULSIVE MAGNETIC FIELD VARIATIONS, Abstract of the
        First S-RAMP Conference, held at Sapporo, on Oct. 2-6, 2000.
      145. SHINOHARA, M., K. Yumoto, H. Tachihara), T.-I. Kitamura and Equatorial
        Magnetometer Network Observation Group, STATISTICAL STUDY OF GLOBAL
        CONCURRENT OCCURRENCE OF PI 2 PULSATIONS IN THE EQUATORIAL
        REGION, Abstract of the First S-RAMP Conference, held at Sapporo, on Oct. 2-6, 2000.
      146. Motoba, T., T. Kikuchi, and K. Yumoto, Ionospheric convection associated with the
        long-period geomagnetic pulsation, Abstract of the First S-RAMP Conference, held at
        Sapporo, on Oct. 2-6, 2000.
      147. TONEGAWA, Y., , T. Sakurai, N. Sato, S. Kokubun, K. Yumoto, Space-ground coordinated
        observations of Pc 5 waves, The first S-RAMP Conference, held at Sapporo, on Oct. 2-6, 2000.
      148. Farrugia, C., V. JORDANOVA, M. Freeman, C. Cocheci, R. Arnoldy, G. Lawrence, M.
        Engebretson, P. Stauning, G. Rostoker, M. Thomsen, G. Reeves, K. Yumoto LARGE-
        SCALE GEOMAGNETIC EFFECTS OF MAY 4, 1998, Abstract of the First S-RAMP
        Conference, held at Sapporo, on Oct. 2-6, 2000.
      149. Saita, K., K. Yumoto, S. Tsunomura and the CPMN group (2001); Temporal Variations of
        geomagnetic transfer functions associated with the Kagoshima Earthquakes, The II Meeting of
        International Workshop on realizing of complex joint observations on the interaction of the solar
        wind with magnetosphere, seismoelectromagnetic VLF radiation and operative precursors of
        earthquakes in Pacific region, , 14-19 August 2001, held at IKIR, Russian Academy of Sciences Far
        Eastern Branch, Elizovo, Kamchatka, Russia.
      150. Abe S., K.Yumoto, H.Kawano, S.I.Solovyev, D.G. Baishev (2001); Plasmapause
        detection by using Pc 4-5 spectral patterns obtained at the CPMN stations, IAGA-
        IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      151. Kitamura K., K. Yumoto, A. Matsuoka, T. Nagatsuma, H. Hayakawa and H. Fukunishi
        (2001); Characteristics of the Shear Alfven Wave Associated With the Storm
        Sudden Commencement in the Magnetosphere, IAGA-IASPEI 2001, 19-31
        August 2001, Hanoi, Vietnam.
      152. Obana Y., A. Yoshikawa, K. Yumoto, J.V. Olson, R.J. Morris, B.J. Fraser (2001);
        Quantitative analysis of the north-south asymmetry of Pc 3-5 amplitudes, IAGA-
        IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      153. Saita, K., K. Yumoto, S. Tsunomura and the CPMN group (2001); Temporal
        Variations of geomagnetic transfer functions associated with the Kagoshima
        Earthquakes, IAGA-IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      154. Sakurai T., , Y. Tonegawa, Y., T. Mukai, S. Kokubun, K. and K. Yumoto (2001); Geotail
        satellite observations of ULF Pc 3 and Pc 5 waves both in the oute magnetosphere
        and the magnetosheath, IAGA-IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      155. Shiokawa, K., T. Oga, H. Oya, F. J. Rich, and k. Yumoto (2001); A atable auroral red
        (SAR) arc observed in Japan after the interval of very weak solar wind, IAGA-
        IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      156. Takasaki S., H. Kawano, A. Yoshikawa, T. Uozumi, Y. Tanaka, Y. Obana, Y.
        Kitamura , M. Seto, M. Iizima, A. Morioka and K. Yumoto (2001);
        Investigation of field-line resonance structure at L~1.3 by using the dual station H
        ratio technique and the phase gradient technique, IAGA-IASPEI 2001, 19-31
        August 2001, Hanoi, Vietnam.
      157. Wesztergom, P.R.Sutcliffe, A. Meloni, P. Palangio, J. C. Riddick, S. F. Toteu, K.
        Tang, B. J. Fraser, and The CPMN Group (2001); Multi-point magnetic observations
        during the August 11, 1999, Total Solar Eclipse, IAGA-IASPEI 2001, 19-31
        August 2001, Hanoi, Vietnam.
      158. Uozumi, T., K. Yumoto, , H. Kawano, A. Yoshikawa, S. Ohtani, J. K. Liou, and C.-I.
        175. Meng, V. Olson, S.-I. Akasofu, S. I. Solovyev, E. F. Vershinin (2001); Polarization
        characteristics of high-latitude Pi 27s as a function of the position to the auroral
        breakup region, IAGA-IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      159. Yamaguch, R., H. Kawano, S. Ohtani, T. Higuchi, K. Yumoto, T. Mukai, Y. Saito, and
        The Circum-pan Pacific Magnetometer Network Group (2001); The timing
        relationship between bursty bulk flows and Pi 2s at the geosynchronous orbit,
        IAGA-IASPEI 2001, 19-31 August 2001, Hanoi, Vietnam.
      160. Yoshikawa A., M. Watanabe and K. Yumoto (2001); The dispersive behavior of filed
        line oscillation in the horizontal dirction produced by the inductive ionosphere in the
        M-I-A-S electromagnetic coupling system, IAGA-IASPEI 2001, 19-31 August
        2001, Hanoi, Vietnam.
      161. Kawano, H., K. Yumoto, V. A. Pilipenko, Y.-M. Tanaka, S. Takasaki, M. Iizima, an M. Seto, Using two ground stations to identify magnetospheric field line eigenfrequency as a continuous function of ground latitude, Korea-Japan Workshop on MHD Waves in Space, Feb. 22, 2002, KyungHee Astronomical Observatory Conference Room, Yongin, Kyunggi, Korea.
      162. Nose, M., K. Takahashi, T. Uozumi, K. Yumoto, and D. K. Milling (2002), Multipoint observations of a Pi2 pulsation on morning side, the Sixth International Conference on Substorm-6 Meeting, in March 2002, Seattle, USA.
      163. T. Sakurai, Y. Tonegawa, Y. Shinkai, K. Yumoto, S. Kokubun, T. Mukai and K. Tsuruda, Poynting vectors of Pc 5 pulsations observed by the Geotail satellite in the dayside outer magnetosphere, 9-12 July 2002 AGU West Pac. Geophys. Meeting, held at Wellington, New Zeeland.
      164. Yamaguchi, R., H. Kawano, S. -I. Ohtani, K. Yumoto, K. Liou, C. -I. Meng, T. Mukai, Y. Saito, H. Hayakawa, and The CPMN Group, Tailward Perpendicular Flows in the Near-Earth Plasma Sheet During Substorms, 2002 COSPAR Colloquium "Frontiers of Magnetospheric Physics", 7月24-26日, 宇宙科学研究所.
      165. Sugn, S.K., D.H. Lee. K.H. Kim, R.P. Lepping, H. Singer, K. Yumoto, K. Kitamura, and J. Olson (2002); Multi-observational studies on the propagation of sudden impulse on Sep 3, 2000, 34th COSPAR Scientific Assembly held in Houston, Texas, USA,10 - 19 October 2002.
      166. H. Kawano, K. Yumoto, V. A. Pilipenko, Y.-M. Tanaka, S. Takasaki, M. Iizima, M. Seto, and the CPMN group, On estimating the magnetospheric plasma density from the CPMN (210MM) magnetometer network, The Second Korea-Japan-China Joint Workshop on Space Weather in Rikubetsu, 10月2-4日, 陸別タウンホール.
      167. S. Takasaki, H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iijima, and K. Yumoto, Solar Wind Activity Dependence of the Occurrence of Field-Line Resonance at low Latitudes (L~1.3), AGU 2002 Fall Meeting, Dec. 6-10, Moscone Center, San Francisco, U.S.A.
      168. H. Kawano, K. Yumoto, V. Pilipenko, Y. Kurchashov, and I. Mann, Hodograph Method to Restore the Radial Profile of Magnetospheric Plasma Density From Data of Ground-Based ULF Observations, AGU 2002 Fall Meeting, Dec. 6-10, Moscone Center, San Francisco, U.S.A.
      169. K. Haraguchi, H. Kawano, K. Yumoto, S. Ohtani, T. Higuchi, and G. Ueno, Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data, AGU 2002 Fall Meeting, Dec. 6-10, Moscone Center, San Francisco, U.S.A.
      170. K. Kitamura, H. Kawano, S. Ohtani, A. Yoshikawa, K. Yumoto, and CPMN Group, Local-time Distribution of Low-latitute Ground Magnetic Disturbances at Sawtooth Injections of April 18-19, 2002, AGU 2002 Fall Meeting, Dec. 6-10, Moscone Center, San Francisco, U.S.A.
      171. Yoshikawa A., K. Yumoto, Y. Song, R.L. Lysal, Role of field-aligned current closure via the Pedersen, Hall, and atmospheric current in the formation of ionospheric current system, AGU 2002 Fall Meeting, Dec. 6-10, Moscone Center, San Francisco, U.S.A.
      172. Shuji Abe,Kiyohumi Yumoto ,Hideaki Kawano Akimasa Yoshikawa , Yuki Obana , Stepan I. Solovyev Dmitry G. Baishev , John V. Olson , E. W. Worthington , and The Circum-pan Pacific Magnetometer Network,The Plasmapause Detection By Multiple Ground Magnetic Field Observations At DifferentI Local Times, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      173. Tetsuya Shiraishi , HideakiHideaki Kawano , Kiyohumi Yumoto , Akira Morioka , Formation Of The Substorm Current Wedge Inside Of The Geosynchronous Orbit: a Case Study Of The May 27, 1997, Storm-Time Substorm, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      174. Kei Kamikawa, Kiyohumi Yumoto, Kentarou Kitamura, and The Circum-pan Pacific Magnetometer Network, A Statistcs Study Of Magnetospheric Response Times During Quasi-Periodic Solar Wind Variations, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      175. Kentarou Kitamura, Hideaki Kawano, Shin-ichi Ohtani, Akimasa Yoshikawa, Kiyohumi Yumoto, and the CPMN group, Characteristics Of The Ground Magnetic Variations At Low And Middle Latitude Associated With The Sawtooh Event On April 18, 2002, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      176. Kentarou Kitamura, Tomokazu Aoki, Hideaki Kawano, and Kiyohumi Yumoto, Characteristics Of The Geosynchronous Magnetopause Crossing Event On November 7, 2002, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      177. Keiko Fukuyama, Tomoyuki Higuchi, Teiji Uozumi,Hideaki Kawano, Kiyohumi Yumoto,the CPMN Observation Group, Determination of onset times of low-latitude Pi2 magnetic pulsations, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      178. K. Shiokawa, Y. Otsuka, T. Ogawa,S. Kawamura, M. Yamamoto,S. Fukao, T. Nakamura, T. Tsuda, N. Balan, K.Igarashi, G.Lu,A. Saito,K. Yumoto, Thermospheric Wind During A Storm-Time Large-Scale Traveling Ionospheric Disturbance, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      179. Y.-M. Tanaka, K. Yumoto, and The CPMN Group, The dependence of spatial structures of Pc 3 pulsations on the solar wind parameters and geomagnetic indices, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      180. Yuki Obana, Akimasa Yoshikawa, R.J.Morris, B. J. Fraser, S.I.Solovyev, Kiyohumi Yumoto, Several factors of Pc 3-5 amplitudes obtained by the coordinated CPMN stations, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      181. Satoko Takasaki, Hideaki Kawano, Yoshimasa Tanaka, Akimasa Yoshikawa,Masahiro Seto, Masahide Iijima and Kiyohumi Yumoto,Properties of the plasma density in the Earth's plasmasphere at low latitudes (L?1.3) during magnetic storms by using ground based observations, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      182. K. Haraguchi, H. Kawano, K. Yumoto, S. Ohtani,T. Higuchi, and G. Ueno, Control of the ionospheric conductivity on dayside field-aligned current intensity: Statistical study with DMSP-F7, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      183. Teiji Uozumi, K. Yumoto, H. Kawano, and A. Yoshikawa, S.Ohtani, S. I. Solovyev, E. F. Vershinin, K. Liou, and C.-I.Meng, Correlations between high- and of low-latitude Pi 2's as a function of the longitudinal distance relative to the auroral breakup region, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      184. Yuko Seki, Rui Yamaguchi, Teiji Uozumi,Hideaki Kawano, Akimasa Yoshikawa, Shin-Ichi Ohtani ,Masahiro Itonaga, Kiyohumi Yumoto, and the CPMN group, ULF Geomagnetic Approach to Short-term Earthquake PredictionSummary of Observational Results in RIKEN/NASDA's Frontier Project, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      185. K. Shiokawa , K. Seki 1, Y. Miyoshi, T. Ono, T. Nagatsuma, T. Obara, M. Nose, Y. Kasahara, M. Hirahara , T. Takashima, K. Asamura, Y. Kasaba, A. Matsuoka, Y. Saito, H. Saito , K. Yumoto, H. Kawano, A. Yoshikawa, Y. Ebihara, A. Yukimatsu, and the inner magnetosphere section, Society of Geomagnetism, Earth, Planetary, and Space Sciences, Future Magnetospheric Mission: Dynamics Of The Inner Magnetosphere, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      186. A.Yoshikawa,K.Yumoto,andM.Itonaga,Magnetosphere-ionosphere-atmosphere-Earthelectromagnetically coupled modelfor Space-whether study, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      187. R. Yamaguchi, H. Kawano, S. Ohtani, K. Yumoto , K. Liou , C. -I. Meng , T. Mukai, Y. Saito, H. Hayakawa , and The CPMN Group, Tallward Perpendicular Flows In The Near-Earth Plasma Sheet Around Substorms, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      188. K. Hattori, K. Gotoh, C. Yoshino, I. Takahashi, Y. Kopytenko, V. Korepanov,M. Hayakawa, K. Yumoto, N. Isezaki, T. Nagao, and S. Uyeda, ULF Geomagnetic Approach to Short-term Earthquake Prediction; Summary of Observational Results in RIKEN/NASDA's Frontier Project, IUGG 2003, held at Sapporo, Japan, on June 30-July 11, 2003.
      189. S.K. Sung, K. H. Kim, D.H. Lee, K. Yumoto, and K. Kitamura, Magnetospheric response to pulsed variation in solar wind dynamic pressure: A case study, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      190. A. Yoshikawa, H. Kohta, T. Uozumi, M. Itonaga, and K. Yumoto, Integrated Analysis of Coordinated Ground Magnetic Field Data for Space Weather Study, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      191. Y. Obana, A. Yoshikawa, R. J. Morris, B. J. Fraser, S. I. Solovyev, K. Yumoto, Environment Factors of Pc 3-5 Amplitudes Observed at the CPMN Stations, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      192. S. Pilipenko, K. Yumoto, Relationships between the Satellite Anomalies, Relativistic Electrons, and ULF waves, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      193. K. Kitamura, H. Kawano, S. Ohtani, A. Yoshikawa, K. Yumoto and the CPMN Group, Quasi-periodic substorms during recovery phase of magnetic storm for space weather study, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      194. Y. Tanaka, K. Yumoto, The CPMN Group, The dependence of Pc 3-5 pulsations on the solar wind parameters and geomagnetic indices, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      195. K. Fukuyama, T. Higuchi, T. Uozumi, H. Kawano, K. Yumoto, the CPMN Observation Group, Determination of onset times of Pi2 magnetic pulsations, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      196. T. Shiraishi, H. Kawano, K. Yumoto, Where the Substorm Current Wedge is Formed During Magnetic Storms? : A Case Study of the May 27, 1997, Storm-Time Substorm, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      197. S. Takasaki, H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iizima and K. Yumoto, Plasma distribution in the low-L part of the plasmasphere during magnetic storms, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      198. S. Abe, K. Yumoto, H. Kawano, A. Yoshikawa, Y. Obana, S. I. Solovyev, D. G. Baishev, J. V. Olson, E. W., The Diagnosis of the Plasmapause by Ground Magnetometer Network Observation at Multiple Local Times, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      199. Haraguchi, K, H, Kawano, and k, Yumoto, Characteristics of field-aligned currents observed by the DMSP satellite, Intl. Symp. on Information Science and Electrical Engineering 2003, held at ACROS Fukuola, Japan, on Nov. 12-14, 2003.
      200. Obana,Y., A.Yoshikawa, J.V.Olson, R.J.Morris, B.J.Fraser, S.I.Solovyev, and K.Yumoto, Techniques to investigate the ionospheric effect on ULF waves', Proceeding of The fifth Workshop on Applications of Radio Science (WARS), Hobart, Australia, on Feb. 18-20, 2004.
      201. Takasaki, S., H. Kawano, Y. Tanaka, A. Yoshikawa, M. Seto, M. Iizima, and K. Yumoto, Enhancements of the plasmaspheric density in its low-L part during magnetic storms, Proceeding of The fifth Workshop on Applications of Radio Science (WARS), Hobart, Australia, on Feb. 18-20, 2004.
      202. Shuji Abe、Hideaki Kawano 、Akimasa Yoshikawa、Diagnosis of the magnetospheric plasma by using the magnetometer network run by Kyushu University:Detection of plasmapause in collaboration with another network、CAWSES kick off Meeting、Irago Garden Hotel Atsumi Aichi Japan、June 16-18 2004、
      203. H. Kawano、 S. Abe、S. Takasaki、A. Yoshikawa、 Diagnosis of the magnetospheric plasma by using the magnetometer network run by Kyushu University:Overview、 CAWSES kick off Meeting、Irago Garden Hotel Atsumi Aichi Japan、June 16-18 2004、
      204. Y. Obana, A. Yoshikawa, J.V. Olson, R.J. Morris, B.J. Fraser, S.I. Solovyev, A New Technique for Analysis of ULF Waves: To Understand the Magnetosphere-Ionosphere Coupling, CAWSES Kickoff Meeting, Irago Garden Hotel, Atsumi, Aichi, Japan, June 16 - June 18, 2004
      205. S. Takasaki、 H. Kawano、A. Yoshikawa、 Diagnosis of the magnetospheric plasma by using the magnetometer network run by Kyushu University:A case study of the inner plasmasphere dynamics duringhuge magnetic storms in October-November 2003、 CAWSES kick off Meeting、Irago Garden Hotel Atsumi Aichi Japan、June 16-18 2004、
      206. Akimasa Yoshikawa、 Hiroko Kohta、Integrated Analysis of Coordinated Ground Magnetic Field Data for 3-D Current System Survey、CAWSES kick off Meeting,Irago Garden Hotel Atsumi Aichi Japan、June 16-18 2004、
      207. Akimasa Yoshikawa, Teiji Uozumi, Masahiro Itonaga, Hiroko Kohta, Kiyohumi Yumoto, Development of Magnetogram Inversion Method for Space Weather Study, Joint AOGS 1st Annual Meeting, Singapore, July 6 - July 10, 2004
      208. Satoko Takasaki, Hideaki Kawano, Masahide Iizima, Kiyohumi Yumoto, Yoshimasa Tanaka, Masahiro Seto, Akimasa Yoshikawa, Unusual Enhancements of the Inner Plasmaspheric Plasma Density During Magnetic Storms : Case Studies of the Magnetic Storms in October-November 2003, Joint AOGS 1st Annual Meeting, Singapore, July 6 - July 10, 2004
      209. Shuji Abe, Stepan I. Solovyev, Kiyohumi Yumoto, Hideaki Kawano, Akimasa Yoshikawa, Yuki Obana, John V. Olson, Plasmapause detection by using longitudinally separated ground magnetometer networks: Statistic analysis, Joint AOGS 1st Annual Meeting, Singapore, July 6 - July 10, 2004
      210. Shuji Abe, Kiyohumi Yumoto, Hideaki Kawano, Akimasa Yoshikawa, Yuki Obana, Stepan I. Solovyev, Dmitry G. Baishev and John V. Olson, Detection of plasmapause by using data obtained from a multi-point ground magnetometer networks and the dual-station H power ratio method, Solar-Terrestrial Bonds and Electromagnetic Precursors of Earthquakes, Paratunka, Kamchatka, Russia, August 13 - August 18, 2004
      211. S. Takasaki, H. Kawano, and A. Yoshikawa, Y. Tanaka, M. Seto, M. Iizima and K. Yumoto, The inner plasmasphere dynamics during huge magnetic storms in October-November 2003, Solar-Terrestrial Bonds and Electromagnetic Precursors of Earthquakes, Paratunka, Kamchatka, Russia, August 13 - August 18, 2004
      212. Akimasa Yoshikawa, Hiroko Kohta, Masahiro Itonaga, Teiji Uozumi, and Kiyohumi Yumoto, Study on the Three-Dimensional Current Closure in the Inner Magnetosphere for Space Weather Study, Solar-Terrestrial Bonds and Electromagnetic Precursors of Earthquakes, Paratunka, Kamchatka, Russia, August 13 - August 18, 2004
      213. Yuki Obana, Akimasa Yoshikawa, John V. Olson, Ray J. Morris, Brian J. Fraser, Stepan I. Solovyev and Kiyohumi Yumoto, A New Technique for Analysis of ULF Waves: To Understand the Magnetosphere-Ionosphere Coupling, Solar-Terrestrial Bonds and Electromagnetic Precursors of Earthquakes, Paratunka, Kamchatka, Russia, August 13 - August 18, 2004
      214. Yuki Obana, Akimasa Yoshikawa, John V. Olson, Ray J. Morris, Brian J. Fraser Stepan I. Solovyev, Kiyohumi Yumoto, Separation of Several Factors Controlling ULF Amplitude, XIth IAGA Workshop, Tsukuba Center for Institutes, Kakioka and Tsukuba, Ibaraki, Japan, November 9- November 17, 2004
      215. H Kawano, V Pilipenko, S Takasaki, K Yumoto, I Mann, Improvement of the Hodograph Methods (to Estimate the Field-Line Eigenfrequency From Ground Magnetometer Data), 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      216. Satoko Takasaki, Hideaki Kawano, Yoshimasa Tanaka, Akimasa Yoshikawa, Yuki Obana, Masahiro Seto, Masahide Iizima and Kiyohumi Yumoto, Plasmaspheric Mass Density Increase at low-Latitudes [L<1.3] During Magnetic Storms, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      217. T. Shinbaru, K. Yumoto, A. Yoshikawa, T. Tanaka, M. Shinohara, K. Kitamura, and K. Nozaki, Observations of ionospheric electric fields associated with SC and Pc5 magnetic pulsations by FM-CW radar at low latitude, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005.
      218. Daiki Orita, Yuki Obana, Akimasa Yoshikawa and Kiyohumi Yumoto, Analysis of CPMN ULF Data at the Magnetic Conjugate Points, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      219. Y. Obana, A. Yoshikawa , R. J. Morris, B. J. Fraser, J. V. Olson and K. Yumoto, Relationship Between Toroidal and Poloidal Pc 3-5 Pulsations Observed at the Coordinated CPMN Stations, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      220. Y. Obana, K. Yumoto, D. G. Baishev, S. I. Solovyev, A. Yoshikawa and H. Kawano, Global Pc 5 Pulsations During a Super Storm in Late October 2003, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      221. Hiroko Kohta, Akimasa Yoshikawa and Kiyohumi Yumoto, Wave Characteristics of Pi2 pulsations observed at the CPMN stations - Results from the Independent Component Analysis-, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      222. Tomoko Teshima, H. Kawano, S. Abe and K. Yumoto, Mass density estimated from CPMN data and compared with IMAGE EUV data at L~1.65, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      223. T Uozumi, K Kitamura, T Suzuki, H Kohta and K Yumoto, MAGnetic Data Acquisition System (MAGDAS) for Realtime Monitoring of Geospace Environment, 2005 Chapman Conference, San Diego, CA, USA, March 20 - March 27, 2005
      224. K.Hattori, I.Takahashi, M.Hayakawa,N.Isezaki, K.Yumoto, T.Nagao and S.Uyeda, ULF geomagnetic changes associated with crustal activity; summary of RIKEN-NASDA project and the latest results, IWSE, The University of Electro-Communications, Tokyo, Japan, May 15-17, 2005.
      225. C.Chen, J.Liu, H.Yen, Y.Chen, and K.Yumoto, Anomalies in ranges of diurnal geomagnetic variationsobserved during the Chi-chi earthquake, IWSE, The University of Electro-Communications, Tokyo, Japan, May 15-17, 2005
      226. D. Anderson , A. Anghel , J. Chau , O. Veliz and K. Yumoto, Daytime, Vertical ExB Drift Velocities Inferred from Ground-based Magnetometer Observations in the Peruvian and Philippine Longitude Sectors, the 11th ISEA, Taipei, Taiwan, R.O.C., May 9-14, 2005
      227. S. Watari1, T. Kikuchi1, T. Tanaka2, K. Yumoto2, and K. Shiokawa3, Solar-Terrestrial Data Analysis Activities in Japan, AOGS 2nd Annual Meeting 2005, Suntec, Singapore, June 20-24, 2005
      228. Katsumi Hattori, Ichiro Takahashi, Masashi Hayakawa, Nobuhiro Isezaki, Kiyohumi Yumoto, Toshiyasu Nagao, and Seiya Uyeda, RIKEN's Int'l Frontier Research on Earthquakes 1997-2002 and Recent Progress on ULF Geomagnetic Changes Associated with Crustal Activity, Mini-Workshop on Seismo Electromagnetic Precursors of Earthquakes: State of the Art and Research Progress, LIPI Campus, Bandung, Indonesia, September 5, 2005
      229. Sarmoko Saroso1 , K. Hattori2, J. Y. Liu3, M. Hayakawa4, K. Shiokawa5, and K. Yumoto6, ULF Geomagnetic Anomaly and TEC Perturbation Related With the Aceh Earthquake of December 26, 2004, Mini-Workshop on Seismo Electromagnetic Precursors of Earthquakes: State of the Art and Research Progress, LIPI Campus, Bandung, Indonesia, September 5, 2005.
      230. Hideaki Kawano and Dong-Hun Lee, Gradient methods on MHD-simulation data: Ionospheric effects, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 2006.
      231. Uozumi, K. Kitamura,S. Abe, H. Kawano, A. Yoshikawa, M. Shinohara, H. Kohta, Y. Obana, A. Fujimoto, T. Kimura, A. Ikeda, G. Maeda, MAGDAS group and K. Yumoto, Report on the installation of MAGDAS/CPMN to oversea stations, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 2006.
      232. M. Shinohara, A. Ikeda, A. Yoshikawa, K. Nozaki, B. Shevtsov and K. Yumoto, Kyushu University FM-CW HF radar network and its initial results, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 2006
      233. Yamashita, A. , K. Yumoto, M. Shinohara, and CPMN, Magnetic enhancement at dayside dip-equator in the recovery phase of magnetic storms, Korea-Japan workshop, Research and International Exchange Plaza, Kyushu University, Nishijin, Fukuoka, Japan, February 16-17, 2006
      234. Baishev, D.G., Barkova, E.S., Kochkin, A.I., Yumoto, K., A case study to determine conditions of the undulation formation in a diffuse auroral zone on the dusk side, 6th International conference "Problems of Geocosmos", St. Petersburg, May 23-28, 2006
      235. Baishev, D.G., Barkova, E.S., Kochkin, A.I., Yumoto, K., Pc5 pulsations in an early stage of recovery phase of October 29-31, 2003 superstorm, 6th International conference "Problems of Geocosmos", St. Petersburg, May 23-28, 2006
      236. S. Saroso, H. Ishikawa, K. Hattori, M. Hayakawa, K. Shiokawa, K. Yumoto, ULF Geomagnetic Anolomaly Associated with the Sumatra Earthquakes, AOGS 3rd Anuual Meeting, Singapore Suntec International Convention & Exhibition Center, Singapore, July 10-14, 2006
      237. Kentaro KITAMURA, Shinichi WATARI, Manabu KUNITAKE, Takeshi SAKANOI, Kiyohumi YUMOTO, Development of the pulsation index for space weather, AOGS 3rd Anuual Meeting, Singapore Suntec International Convention & Exhibition Center, Singapore, July 10-14, 2006
      238. P. J. Chi, M. J. Engebretson, M. B. Moldwin, C. T. Russell, I. R. Mann, J. C. Samson, J. L. Cruz-Abeyro, K. Yumoto, D.-H. Lee, M. Reno, J. Goldstein, and L. Winkler, Observations by Mid-continent Magnetoseismic Chain (McMAC) and Their Use in Space Weather Research, COSPAR 2006, Beijing, China, July 16-23, 2006
      239. De-Sheng Han, H-G. Yang, Z-T. Chen, T. Araki, Q Li, Y-F. Gao, M. Nose, T. Iyemori, K. Yumoto, P. Chi, From perturbation of the solar wind density to global Pi3 pulsation: A case study, COSPAR 2006, Beijing, China, July 16-23, 2006
      240. Moiseyev , A.V.; Solovyev , S.I.; Du, A.; Yumoto, K.; Engebretson, M.; Geomagnetic field and aurora reaction to the sharp increase of dynamic solar wind pressure during the magnetic superstorm of November 7, 2004, COSPAR 2006, Beijing, China, July 16-23, 2006
      241. Moiseyev , A.V.; Solovyev , S.I.; Du , A.; Yumoto , K. ; Engebretson , M.; Peculiarities of meridional propagation of sudden commencement during the magnetic superstorm of November 7-10, 2004. Influence of IMF By, COSPAR 2006, Beijing, China, July 16-23, 2006
      242. Yuki Obana, K. Yumoto, A. Yoshikawa, M. Shinohara, H. Kawano, D. G. Baishev, S. I. Solovyev, and Circum-pan Pacific Magnetometer Network Group, Global Pc 5 Pulsations During an Interval of Northward IMF and High-speed Solar Wind on 31 October 2003, Western Pacific Geophysics Meeting, Bijing, China, July 24-27, 2006
      243. D.G. Baishev, E.S.Barkova, A.I.Kochkin, F.Rich, K.Yumoto, A case study to determine conditions of the undulation formation in the diffuse auroral zone on the dusk side, Western Pacific Geophysics Meeting, Bijing, China, July 24-27, 2006
      244. Solovyev S I., Moiseyev A V., Du A., Yumoto K., Engebretson M., Geomagnetic Sudden Impulse Characteristics in Dependence of the IMF Orientation, Western Pacific Geophysics Meeting, Bijing, China, July 24-27, 2006
      245. P. J. Chi, M. J. Engebretson, M. B. Moldwin, C. T. Russell, I. R. Mann, J. C. Samson, J. L. Cruz-Abeyro, K. Yumoto, D.-H. Lee, M. Reno, J. Goldstein, M. R. Hairston, and L. Winkler, Mid-continent Magnetoseismic Chain (McMAC): A Project for Magnetoseismic Research and Beyond, Western Pacific Geophysics Meeting, Bijing, China, July 24-27, 2006
      246. H. Kohta, A. Yoshikawa, T. Uozumi, K. Yumoto and MAGDAS/CPMN Group, Some Features of Sq Dynamics Analyzed by MAGDAS/CPMN Data, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations, 2006年11月1-3日、立教大学
      247. T. Tokunaga, A. Morikawa, H. Kohta, A. Yoshikawa, T. Uozumi, K. Yumoto and MAGDAS/CPMN group, Comparison between High-Latitude Pi 2 Pulsations Extracted by ICA (Independent Component Analysis) and AKR, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations, 2006年11月1-3日、立教大学
      248. A. Fujimoto, S. Watanabe, M. Shinohara, K. Yumoto, MAGDAS/CPMN Group, Wave characteristics of long-period pulsations at ground and satellite during huge magnetic storms, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations , 2006年11月1-3日、立教大学
      249. A. Ikeda, M. Shinohara, A. Yoshikawa, K. Nozaki, K. Yumoto, Comparison of the ionospheric electric field and the geomagnetic field at the time of SC, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations , 2006年11月1-3日、立教大学
      250. T. Uozumi, K. Yumoto, K. Kitamura, S. Abe, MAGDAS Group, Occurrence characteristics of the equatorial electro jet derived from MAGDAS, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations , 2006年11月1-3日、立教大学
      251. Ford M S., Menk F W., Stauning P., Yumoto K., Zesta E., A Satellite-Ground Study of Low-Latitude Pi2 Pulsations, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      252. Hiroko KOHTA, Akimasa YOSHIKAWA, Teiji UOZUMI, Kiyohumi YUMOTO, Monitoring of Ionosphere-Atmosphere Electrodynamic Coupling by Geomagnetic Network Data, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      253. Fujimoto A., Hermann L., Watanabe S., Shinohara M., Yumoto K., MAGDAS Group, Characteristics of Long-period ULF at Ground and Satellite during Huge Magnetic Storms, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      254. Anderson D., Anghel A., Chau J., Yumoto K., Bhattacharyya, A., Relating the Interplanetary Electric Fields (IEFs) With the Low Latitude Electric Fields (LLEFs) Under Both Geomagnetically Quiet and Disturbed Conditions, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      255. Ikeda A., Shinohara M., Yoshikawa A., Nozaki K., Yumoto K., FM-CW Radar Observation of the Electric Fields Penetrating into the Low Latitude Ionosphere at the Time of SC, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      256. T. Tokunaga, H. Kohta, A. Yoshikawa, T. Uozumi, H. Kawano, K. Yumoto, Global Wave characteristics of Pi 2 Pulsations Extracted by Independent Component Analysis, AGU Fall Meeting, San Francisco, USA, December 11-15, 2006
      257. T. Uozumi, K. Yumoto, D. Sibeck, and the MAGDAS/CPMN Group, a plan of collaborative studies combining THEMIS and MAGDAS/CPMN (ULTIMA) project, pre-THEMIS-launch Science Meeting, Cape Canaveral Florida, USA, February 13-14, 2007
      258. Morioka, A., T. Tokunaga, and K. Yumoto, Substorm onsets obtained from satellite and ground-based observations, The CAWSES workshop Comparative Study of Solar Flares and Magnetospheric Substorms as a Basis of Space Weather Research, Fairbanks, USA, March 18-20, 2007
      259. Maeda G., K. Yumoto and MAGDAS Group, Progress Report on the Deployment of MAGDAS, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Tokyo, 18-22 June, 2007
      260. Fujimoto Akiko, Tamiki Ueno and Kiyohumi Yumoto, Science Mission for QSAT Project -Study of Field-Aligned Currents (FACs) in Polar and Equatorial Regions-, UN/ESA/NASA Workshop on Basic Space Science and the International Heliophysical Year 2007, National Astronomical Observatory of Japan, Tokyo, 18-22 June, 2007
      261. Abe, S., H. Kawano, J. Goldstein, S. Ohtani, S. I. Solovyev, D. G. Baishev, and K. Yumoto, A plasmaspheric plume identified by IMAGE EUV imaging and ground-based plasma sounding through ULF waves, GEM workshop, 2007/Jun/18-22, Utah, USA.
      262. Ikeda A.,M.Shinohara,A.Yoshikawa,K.Nozaki,A.Shinbori, K.Yumoto, Change in Ionospheric Electric Field and Geomagnetic Field due to Solar Wind Variations at the time of SC, IAGA at the IUGG General Assembly 2007, Perugia, 2-13 July, 2007
      263. Yoshikawa A., and R. Fujii, Cowling channel formation in the 3D-Ionosphere, IAGA at the IUGG General Assembly in Perugia, 2-13 July 2007
      264. Kohta Hiroko, Akimasa Yoshikawa, Teiji Uozumi, Kiyohumi Yumoto and the MAGDAS/CPMN Group, Analysis of Sq Current Structures Obtained from Ground-based Magnetic Field Observations, IAGA at the IUGG General Assembly 2007, Perugia, 2-13 July, 2007
      265. Fujimoto Akiko, Manabu Shinohara, Kiyohumi Yumoto, Yumoto Kiyohumi Circum-pan Pacific Magnetometer Network Group, Relationship between Storm-time Pc5 observed at ground stations and MeV Electron Flux at the Geosynchronous orbit, IAGA at the IUGG General Assembly 2007, Perugia, 2-13 July, 2007
      266. Kawano Hideaki, Shuji Abe, Satoko Takasaki, and Kiyohumi Yumoto, Plasmaspheric dynamics estimated from ground magnetometers, Asia Oceania Geosciences Society 4th annual meeting, Queen Sirikit National Convention Centre, Bangkok, Thai, July 30 - August 4, 2007.
      267. Shinohara M., A. Ikeda, K. Nozaki, S. Watari, K. Kitahara, V.V. Bychkov, B.M. Shevtsov, K. Yumoto, DP2 type ionospheric electric field fluctuations observed by FM-CW HF radar, the IV International Conference "Solar-Terrestrial bonds and earthquake precursors", Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, Paratunka, Russia, 14-17 August, 2007
      268. Ikeda A., M. Shinohara, K. Nozaki, K. Yumoto, FM-CW / MAGDAS Observations during SC, the IV International Conference "Solar-Terrestrial bonds and earthquake precursors", Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, Paratunka, Russia, 14-17 August, 2007
      269. Maeda G., S. Abe, K. Yumoto and the MAGDAS Group, MAGDAS Global Network and Its Data Availability, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      270. Chi P.J., C. T. Russell, M. B. Moldwin, M. J. Engebretson, I. R. Mann, K. Yumoto, Mid-continent Magnetoseismic Chain (McMAC) and Its Role in Future Magnetoseismic Research of Ultra Large Terrestrial International Magnetometer Array (ULTIMA), International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      271. Kawano H., S. Abe, S. Takasaki, N. Maeda, and K. Yumoto, Monitoring the plasmaspheric plasma density with MAGDAS/CPMN magnetometer network, International CAWSES Symposium, 2007/Oct/23-27, Kyoto, Japan.
      272. Ueno T., K. Yumoto, T. Uozumi, K. Kitamura, S. Abe, Y. Numata, MAGDAS group, A New Index to Monitor Temporal and Long-Term Variations of the Equatorial Electrojet by MAGDAS/CPMN Real-Time Data: EE-Index, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      273. Ikeda A.,K.Yumoto, M.Shinohara,A.Yoshikawa,K.Nozaki,A.Shinbori, sc-associated Ionospheric Electric Fields at Low Latitude: FM-CW Radar Observation, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      274. Hirayama Yuki, Kiyohumi Yumoto, Teiji Uozumi, Terumasa Tokunaga, Shinichi Watari and MAGDAS/CPMN Group, Characteristics of Equatorial Pi2 Pulsations Observed at the MAGDAS Stations, International CAWSES Symposium, Kyoto University, Japan, 23-27 October, 2007
      275. Yoshikawa A., Hall and Pedersen current closure in the 3D ionosphere, ISSI meeting for 3D-induction Ionosphere at International Space Science Institute in Bern, 5-9 November 2007
      276. Hattori K., D.S. Widarto, S. Saroso, M. Nishihashi, C. Yoshino, D. Kaida, E.Z. Gaffar, Y. Sudrajat, K. Yumoto, M. Husni, H. Subakti, K. Shiokawa and M. Hayakawa, Electromagnetic monitoring for crustal activity in Indonesia, International Workshop on Seismo-Electromagnetic Phenomena: Recent Progress, Bundung, Indonesia, 6-7 November, 2007
      277. Hattori K., T. Hirano, C. Yoshino, K. Yumoto, K. Shiokawa, S. Saroso and Q.H. Huang, ULF/ELF magnetic phenomena possibly associated with the 2004 Sumatra earthquakes, International Workshop on Seismo-Electromagnetic Phenomena: Recent Progress, Bundung, Indonesia, 6-7 November, 2007
      278. Saroso S., K. Hattori, M. Hayakawa, K. Shiokawa, and K. Yumoto, Seismo-electromagnetic signatures possibly related to the Sumatra Megathrust earthquakes of 26 December 2004 and 28 March 2005, International Workshop on Seismo-Electromagnetic Phenomena: Recent Progress, Bundung, Indonesia, 6-7 November, 2007
      279. Tokunaga Terumasa, Akimasa Yoshikawa, Teiji Uozumi, Kiyohumi Yumoto and CPMN Group, Mutual Information based clustering of Pi 2 magnetic pulsations observed at CPMN stations, AGU Fall Meeting 2007, San Francisco, USA, 10-14 December, 2007
      280. Ikeda A., K.Yumoto, M,Shinohara, K.Nozaki, A.Yoshikawa, T.Uozumi, T.Tokunaga, Y.Hirayama, Characteristics of Pi2 Ionospheric Electric Pulsations, AGU Fall Meeting 2007, San Francisco, USA, 10-14 December, 2007
      281. Morioka A.., Y. Miyoshi, F. Tsuchiya, H. Misawa, K. Yumoto, R.R. Anderson, J. D. Menietti, and E. F. Donovan; Auroral particle acceleration and substorm onset, Earth-Sun system exploration energy coupling within and between plasma regimes, held on January 14-18, 2008, at Kona, Hawaii, USA
      282. Saroso S., K. Hattori, M. Hayakawa, K. Shiokawa, K. Yumoto, and J. Y. Liu, Some results of seismo-electromagnetic research at LAPAN, Indonesia, International Workshop on Space and Lithosphere Environment Changes in Asia, Kanagawa, Japan , 1 March, 2008