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Development of Data Acquisition System for Space Weather Study

Research Project

Project/Area Number 13554016
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Space and upper atmospheric physics
Research InstitutionKyushu University

Principal Investigator

YUMOTO Kiyohumi  Kyushu University, Faculty of Sciences, Professor, 大学院・理学研究院, 教授 (20125686)

Co-Investigator(Kenkyū-buntansha) SHIOKAWA Kazuo  Nagoya University, Solar Terrestrial Environment Laboratory, Associate Professor, 太陽地球環境研究所, 助教授 (80226092)
KAWANO Hideaki  Kyushu University, Faculty of Sciences, Associate Professor, 大学院・理学研究院, 助教授 (60304721)
YOSHIKAWA Akimasa  Kyushu University, Faculty of Sciences, Research Associate, 大学院・理学研究院, 助手 (70284479)
OZAWA Kazuo  Cosmo Design Inc., President Researcher, 取締役社長(研究職)
SETO Masahiro  Tohoku Institute Technology, Professor, 通信工学科, 教授 (60085412)
林 幹治  東京大学, 大学院・理学系研究科, 助教授 (60011730)
巻田 和男  拓殖大学, 工学部, 教授 (40129945)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥6,100,000 (Direct Cost: ¥6,100,000)
Fiscal Year 2002: ¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2001: ¥3,600,000 (Direct Cost: ¥3,600,000)
KeywordsSpace weather / Polar disturbances / Equatorial Magnetometer Network / GPS / Space Environment Research / Circum-pan Pacific Magnetometer Network / Real time / Data acquisition system / 観測記録システムの開発 / 全地球的規模の観測 / 無停電電源 / GPS衛星信号受信 / フラッシュメモリカード / 半自動観測記録システム / フラッシュメモリーカード
Research Abstract

In this research, we have developed a real-time MAGnetic Data Acquisition System of Circum-pan Pacific Magnetometer Network, i.e. MAGDAS/CPMN system in Kyushu University. On the basis of the results, new fluxgate-type magnetometers and their data acquisition system from overseas sites to Japan will be constructed in the SERC, Kyushu University until the end of 2004. Magnetic field digital data(H+δH, D+δD, Z+δZ, F+δF) are obtained with the sampling rate of 1/16 seconds, and then the averaged data are transferred from the overseas stations to the SERC, Japan in real time. The long-term inclinations(I) of the sensor axes are measured by two tilt-meters with 0.2 arc-sec resolution. The temperature (T) inside the sensor bloc is also measured. The GPS signals are received to adjust the standard time inside the data logger/transfer unit.
These data are logging in the Compact Flash Memory Card of 1 GB. Every day, the data logger at an overseas site generates a file containing averaged 1-see magnetic data (H,D,Z,F) and a file containing the averaged 1-minmagnetic data and inclination and temperature data (I,T) of the magnetometer sensor. The file size of the 1-sec data is less than 1.5 MB/day. The file-size of the 1-min data is less than 50KB. If the communication line at the site does not allow a fast-enough connection, the data logger sends only the 1-min file to the SERC every day ; if the connection is fast enough, the data logger sends both the 1-min file and the 1-sec file to the SERC every day. In fact, the data transfer does not have to be on a daily basis : That is, the data-transfer interval can be set to any value between 10 minutes and 1 day, depending on the condition of the following communication lines. The MAGDAS data can be transferred from the overseas stations to the SERC, Japan, by using three possible ways; special line for INTERNET, telephone line and Satellite telephone lines.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (141 results)

All Other

All Publications (141 results)

  • [Publications] Akinaga, Y., M.Hayakawa, J.Y.Liu, K.Yumoto, K.Hattori: "A precursory ULF signature for Chi-Chi earthquake in Taiwan"Natural Hazard and Earth System Sciences. 1. 33-36 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Chi.P.J., C.T.Russell, K.Yumoto, et al.: "Propagation of the preliminary reverse impulse of sudden commencements to low latitudes"Journal of Geophysical Research. 106. 18857-18864 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kangas, J., J.Kultima, K.Hayashi, et al.: "Impact of interplanetary shock on the ULF wave activity : A case study of the storm sudden commencement on September 22, 1999"Earth Planets Space. 53. 1177-1182 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kepko, L., M.G.Kivelson, K.Yumoto: "Flow bursts, braking, and Pi2 pulsations"Journal of Geophysical Research. 106. 1903-1915 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Makarov, G.A., D.G.Baishev, K.Yumoto, et al.: "Meridional propagation velocity of the geomagnetic sudden impulse in the high-latitude region"J.Geomag.Aeronomy. 41. 578-582 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Nose, M., S.Ohtani, K.Yumoto, et al.: "Ion composition of the near-Earth plasma sheet in substorm and quiet intervals : Geotail/EPIC measurements"Journal of Geophysical Research. 106. 8391-8403 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sakurai, T., Y.Tonegawa, K.Yumoto, et al.: "Poynting vectors of Pc 5 pulsations observed by GEOTAIL satellite in the dayside outer magnetosphere"Earth Planets and Space. 53. 843-849 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sastri J.H., T.Takeuchi, K.Yumoto, et al.: "Preliminary impulse of the geomagnetic storm sudden commencement of November 18, 1993"Journal of Geophysical Research. 106. 3905-3918 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., T.Ogawa, H.Oya, F.J.Rich, K.Yumoto: "A stable auroral red (SAR) arc observed over Japan after an interval of very weak solar wind"Journal of Geophysical Research. 106. 26091-26101 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Waters, C.L., M.D.Sciffer, K.Yumoto, et al.: "The phase structure of very low latitude ULF waves across dawn"Journal of Geophysical Research. 106. 15599-15607 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K., the CPMN Group: "Characteristics of Pi 2 magnetic pulsations observed at the CPMN stations : A review of the STEP results"Earth Planets Space. 53. 981-992 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Mishin, E.V., J.C.Foster, K.Yumoto, et al.: "Global-scale, quasi-periodic disturbances during the magnetic storm September 25, 1998"Journal of Geophysical Research. 107 A12. SMP40,1-SMP40,11 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Anderson, D., A.Anghel, K.Yumoto, et al.: "Estimating daytime vertical ExB drift velocities in the equatorial F-region using ground-based magnetometer observations"Geophysical Research Letters. 29 No.12. 37,1-37,4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Angelopoulos, V., J.A.Chapman, K.Yumoto, et al.: "Plasma sheet electromagnetic power generation and its dissipation along auroral field lines"Journal of Geophysical Research. 107 A8. SMP14,1-SMP14,20 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Doumouya V., Y.Cohen, B.R.Arora, K.Yumoto: "Local time and longitude dependence of the equatorial electrojet magnetic effects"Journal of Atmospheric and Solar Terrestrial Physics. 65. 1265-1282 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hattori, K., Y.Akinaga, K.Yumoto, et al.: "ULF magnetic anomaly preceding the 1997 Kagoshima Earthquakes"Seismo Electromagnetics : Lithosphere-Atmosphere-Ionosphere Coupling, TERRAPUB. 19-28 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Higuchi, T., S, -I.Ohtani, T.Uozumi, K.Yumoto: "Pi 2 onset time determination information criterion"Journal of Geophysical Research. 107 A7. SMP14,1-SMP14,13 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kawano, H., K.Yumoto, V.A.Pilipenko, et al.: "Using two ground stations to identify magnetospheric field line eigenfrequency as a continuous function of ground latitude"Journal of Geophysical Research. 107 A8. SMP25,1-SMP25,12 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Motoba, T., T.Kikuchi, K.Hayashi, et al.: "Global Pc5 caused by a DP2-type ionospheric current system"Journal of Geophysical Research. 107 A2. SMP7,1-SMP7,12 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., K.Yumoto, J.V.Olson: "Multiple auroral brightenings and associated Pi 2 pulsations"Geophysical Research Letters. 29 No.11. 32,1-32,4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi, K., K.Liou, K.Yumoto: "Correlative study of ultraviolet aurora and low-latitude Pi 2 pulsations"Journal of Geophysical Research. 107 A12. SMP2,1-SMP2,14 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Trivedi, N.B., D.G.Sibeck, K.Yumoto, et al.: "Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet"Journal of Geophysical Research. 107 A6. SMP16,1-SMP16,10 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Vassiliadis, D., A.J.Klimas, K.Yumoto, et al.: "High-latitude electrodynamics from a multi-array nonlinear geomagnetic model"COSPAR Colloquia Ser.Vol.12 on Space Weather Study using Multi-point Techniques, Pergamon Press. 231-236 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Velichko V.A., R.N.Boroyev, K.Yumoto, et al.: "North-south asymmetry of the substorm intensity depending on the IMF BY-component"Earth Planets Space. 54. 955-961 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yagova, N., K.Yumoto, V.Pilipenko, et al.: "Local variations of geomagnetic ULF noises and their Relation to seismic activity"Seismo Electromagnetics : Lithosphere-Atmosphere-Ionosphere Coupling, TERRAPUB. 45-48 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto K., M.Shinohara, K.Nozaki, et al.: "Simultaneous Ground-based Observations 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, Pergamon Press. 243-247 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto K.: "Sudden changes during auroral substorm"Bifurcation Phenomena in Plasma, Kyushu University. 217-227 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Nose, M., K.Takahashi, K.Yumoto, et al.: "Multipoint observations of a Pi2 pulsation on morning side : The September 20, 1995, event"Journal of Geophysical Research. 108 A5. SMP24,1-SMP24,16 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., Y.Otsuka, K.Yumoto, et al.: "Thermospheric wind during a storm-time large-scale traveling ionospheric disturbance"Journal of Geophysical Research. 108 A1. SIA3,1-SIA3,13 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Chandrasekharl, E., Naoto Oshiman, Kiyohumi Yumoto: "On the role of oceans in the geomagnetic induction by Sq along the 210. magnetic meridian region"Earth Planets Space. 55. 315-326 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Doumouya V, Cohen Y, Arora BR, Yumoto, K: "Local time and longitudedependence of the equatorial electrojet magnetic effects"Journal of Atmospheric and Solar Terrestrial Physics. 65. 1265-1282 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Farrugia, C.J., V.K.Jordanova, K.Yumoto, et al.: "Large-scale geomagnetic effects of May 4, 1998"Advances in Space Research. 31 No.4. 1111-1116 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Huang Chao-Song, J.C.Foster, K.Yumoto, et al.: "Global magnetospheric-ionospheric oscillations initiated by a solar wind pressure impulse"Journal of Geophysical Research. 108 A6. SMP7,1-SMP7,11 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Motoba T, Kikuchi T, Okuzawa T, Yumoto K: "Dynamical response of the magnetosphere-ionosphere system to a solar wind dynamic pressure oscillation"Journal of Geophysical Research. 108 A5. SMP15,1-SMP15,13 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sastri, J.H., Y.Kamide, K.Yumoto: "Signatures for magnetospheric substorms in the geomagnetic field of dayside equatorial region : Origin of ionospheric component"Journal of Geophysical Research. 108 A10. SIA4,1-SIA4,10 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Solovyev SI, Moiseyev AV, Yumoto K, et al.: "Characteristics of the global geomagnetic response to quasi-periodic variations in the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43. 172-180 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Solovyev SI, Moiseyev AV, Yumoto K, Engebretson M: "Characteristics of magnetospheric-ionospheric disturbances during an increase of the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43. 579-592 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K., the CPMN Group: "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. 110-114 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K: "Transport of HM energy through the magnetosphere-ionosphere coupling system-Results from the ground-based network observations"Advances in Solar-Terrestrial Physics, TERRAPUB. 175-211 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Uozumi, T., K.Yumoto, H.Kawano, et al.: "Propagation characteristics of Pi 2 magnetic pulsations observed at ground high-latitudes"Journal of Geophysical Research. 109(In press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Akinaga, Y.M.Hayakawa, J.Y.Liu, K.Yumoto, K.Hattori: "A precursory ULF signature for Chi-Chi earthquake in Taiwan"Natural Hazard and Earth System Sciences. 1. 33-36 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Chi.P.J., C.T.Russell, J.Raeder, E.Zesta, K.Yumoto, H.Kawano, K.Kitamura, S.M.Petrinec, V.Angelopoulos, G.Le, M.B.Moldwin: "Propagation of the preliminary reverse impulse of sudden commencements to low latitudes"Journal of Geophysical Research. 106. 18857-18864 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kangas, J., J.Kultima, A.Guglielmi, A.Potapov, K.Hayashi: "Impact of interplanetary shock on the ULF wave activity : A case study of the storm sudden commencement on September 22, 1999"Earth Planets Space. 53. 1177-1182 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kepko, L., M.G.Kivelson, K.Yumoto: "Flow bursts, braking, and Pi2 pulsations"Journal of Geophysical Research. 106, No.A2. 1903-1915 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Makarov, G.A., D.G.Baishev, S.I.Solovyev, V.A.Pilipenko, M.Engebretson, K.Yumoto: "Meridional propagation velocity of the geomagnetic sudden impulse in the high-latitude region"J.Geomag.Aeronomy. Vol.41, No.5. 578-582 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Nose, M., S.Ohtani, K.Takahashi, A.T.Lui, R.W.McEntire, D.J.Williams, S.P.Christon, K.Yumoto: "Ion composition of the near-Earth plasma sheet in substorm and quiet intervals : Geotail/EPIC measurements"Journal of Geophysical Research. 106, A5. 8391-9403 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sakurai, T., Y.Tonegawa, Y.Shinkai, K.Yumoto, S.Kokubun, K.Tsuruda, T.Mukai: "Poynting vectors of Pc 5 pulsations observed by GEOTAIL satellite in the dayside outer magnetosphere"Earth Planets Space. 53. 843-849 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sastri J.H., T.Takeuchi, T.Araki, K.Yumoto, S.Tsunomura, H.Tachihara, H.Luehr, J.Watermann: "Preliminary impulse of the geomagnetic storm sudden commencement of November 18,1993"Journal of Geophysical Research. 106. 3905-3918 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., T.Ogawa, H.Oya, F.J.Rich, K.Yumoto: "A stable auroral red(SAR) arc observed over Japan after an interval of very weak solar wind"Journal of Geophysical Research. 109. 26, 091-26, 101 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Waters, C.L., M.D.Sciffer, B.J.Fraser, F.W.Menk, K.Foulkes, K.Brand, O.Saka, K.Yumoto: "The phase structure of very low latitude ULF waves across dawn"Journal of Geophysical Research. 106, A8. 15599-15607 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K., CPMN Group: "CPMN Group, Characteristics of Pi 2 magnetic pulsations observed at the CPMN stations : A review of the STEP results"Earth Planets Space. 53. 981-992 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Mishin, E.V., J.C.Foster, A.P.Potekhin, A.Potapov, F.J.Rich, K.Yumoto, K.Schlegel, V.I.Taran, H.B.Vo: "Global-scale, quasi-periodic disturbances during the magnetic storm September 25,1998"Journal of Geophysical Research. 107, A12, SMP40. 1-11 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Anderson, D., A.Anghel, K.Yumoto, M.Ishitsuka, E.Kudeki: "Estimating daytime vertical ExB drift velocities in the equatorial F-region using ground-based magnetometer observations"Geophysical Research Letters. 29, No.12, 37. 1-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Angelopoulos, V., J.A.Chapman, F.S.Mozer, J.D.Scudder, C.T.Russell, K.Tsuruda, T.Mukai, T.J.Hughes, K.Yumoto: "Plasma sheet electromagnetic power generation and its dissipation along auroral field lines"Journal of Geophysical Research. 107, A8, SMP14. 1-20 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Doumouya V., Y.Cohen, B.R.Arora, K.Yumoto: "Local time and longitude dependence of the equatorial electrojet magnetic effects"Journal of Atmospheric and Solar Terrestrial Physics. 65. 1265-1282 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Higuchi, T., S, -I.Ohtani, T.Uozumi, K.Yumoto: "Pi 2 onset time determination information criterion"Journal of Geophysical Research. 107, No.A7, SMP14. 1-13 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kawano, H., K.Yumoto, V.A.Pilipenko, Y.-M.Tanaka, S.Takasaki, M.Iizima, M.Seto: "Using two ground stations to identify magnetospheric field line eigenfrequency as a continuous function of ground latitude"Journal of Geophysical Research. 107, A8, SMP25. 1-12 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Motoba, T., T.Kikuchi, H.Luhr, H.Tachihara, T.-I.Kitamura, K.Hayashi, T.Okuzawa: "Global Pc5 caused by a DP2-type ionospheric current system"Journal of Geophysical Research. 107, A2, SMP7. 1-12 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., K.Yumoto, J.V.Olson: "Multiple auroral brightenings and associated Pi 2 pulsations"Geophysical Research Letters. Vol.29, No.11, 32. 1-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi, K., K.Liou, K.Yumoto: "Correlative study of ultraviolet aurora and low-latitude Pi 2 pulsations"Journal of Geophysical Research. 107, A12, SMP2. 1-14 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Trivedi, N.B., D.G.Sibeck, E.Zesta, J.C.Santos, K.Yumoto, T.Kitamura, M.S Shionohara, S.L.G.Dutra: "Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet"Journal of Geophysical Research. 107, No.A6, SMP16. 1-10 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Velichko V.A., R.N.Boroyev, M.G.Gelberg, D..G.Baishev, J.V.Olson, R.J.Morris, K.Yumoto: "North-south asymmetry of the substorm intensity depending on the IMF BY-component"Earth Planets Space. 54. 955-961 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Nose, M., K.Takahashi, T.Uozumi, K.Yumoto, Y.Miyoshi, A.Morioka, D.K.Milling, P.R.Sutcliffe, H.Matsumoto, T.Goka: "Multipoint observations of a Pi2 pulsation on morning side : The September 20,1995,event"Journal of Geophysical Research. Vol.108, A5, SMP24. 1-16 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Shiokawa, K., 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"Journal of Geophysical Research. Vol.108, A1, SIA3. 1-13 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Chandrasekharl, E., Naoto Oshiman, Kiyohumi Yumoto: "On the role of oceans in the geomagnetic induction by Sq along the 210. magnetic meridian region"Earth Planets Space. 55. 315-326 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Doumouya V, Cohen Y, Arora BR, Yumoto K.: "Local time and longitude dependence of the equatorial electrojet magnetic effects"Journal of Atmospheric and Solar Terrestrial Physics. 65(14-15). 1265-1282 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Farrugia, C.J., V.K.Jordanova, M.P.Freeman, C.C.Cocheci, R.L.Arnoldy, M Engebretson, P.Stauning, G.Rostoker, M.F.Thomson, G.Reeves, K.Yumoto: "Large-scale geomagnetic effects of May 4,1998"Advances in Space Research. 31, No.4. 1111-1116 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Huang Chao-Song, J.C.Foster, G.D.Reeves, J.Watermann, J.H.Sastri, K.Yumoto, P.Song: "Global magnetospheric-ionospheric oscillations initiated by a solar wind pressure impulse"Journal of Geophysical Research. 108, No.A6, SMP7, art, No.1232. 1-11 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Motoba T, Kikuchi T, Okuzawa T, Yumoto K: "Dynamical response of the magnetosphere-ionosphere system to a solar wind dynamic pressure oscillation"Journal of Geophysical Research. No.A5, SMP15, art.No.1206. 1-13 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sastri, J.H., Y.Kamide, K.Yumoto: "Signatures for magnetospheric substorms in the geomagnetic field of dayside equatorial region : Origin of ionospheric component"Journal of Geophysical Research. Vol.108, No.A10, SIA4, art.No.1376. 1-10 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Solovyev SI, Moiseyev AV, Baishev DG, Makarov GA, Yumoto K, Engebretson M: "Characteristics of the global geomagnetic response to quasi-periodic variations in the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43(2). 172-180 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Solovyev SI, Moiseyev AV, Yumoto K, Engebretson M: "Characteristics of magnetospheric-ionospheric disturbances during,an increase of the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43(5). 579-592 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K., CPMN group: "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. 110-114 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Uozumi, T., K.Yumoto, H.Kawano, A.Yoshikawa, S.Ohtani, J.V.Olson, S.-I.Akasofu, S.I.Solovyev6, E.F.Vershinin, K Liou, C.-I.Meng: "Propagation characteristics of Pi 2 magnetic pulsations observed at ground high-latitudes"Journal of Geophysical Research. Vol.109(in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Hattori, K., Y.Akinaga, M.Hayakawa, K.Yumoto, T.Nagao, S.Uyeda: "ULF magnetic anomaly preceding the 1997 Kagoshima Earthquakes(Seismo Electromagntics : Lithosphere-Atmoshere Ionosphere Coupling)"TERRAPUB. 19-28 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Vassiliadis, D., A.J.Klimas, B.-H.Ahn, R.J.Parks, A.Viljanen, K.Yumoto: "High-latitude electrodynamics from a multi-array nonlinear geomagnetic model(COSPAR Colloquia Ser. Vol. 12on Space Weather Study using Multi-point Techniques)"Pergamon Press. 231-236 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yagova, N., K.Yumoto, V.Pilipenko, K.Hattori, T.Nagao, K.Saita: "Local variations of geomagnetic ULF noises and their relation to seismic activity(Seismo Electromagntics : Lithosphere-Atmoshere Ionosphere Coupling)"TERRAPUB. 45-48 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto K., M.Shinohara, K.Nozaki, E.A.Orosco, Fr.V.Badillo, D.Bringas, CPMN, WestPac: "Observation Groups, Simultaneous Ground-based Observations of Electric and Magnetic Field Variations near the Magnetic Equator for Space Weather Study(COSPAR Colloquia Ser. Vol. 12on Space Weather Study using Multi-point Techniques)"Pergamon Press. 243-247 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K.: "Sudden changes during auroral substorm"Bifurcation Phenomena in Plasma, Kyushu University. 217-227 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yumoto, K.: "Transport of HM energy through the magnetosphere-ionosphere coupling system-Results from the ground-based network observations(Advances in Solar-Terrestrial Physics)"TERRAPUB. 175-211 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Chandrasekharl, E., Naoto Oshiman, Kiyohumi Yumoto: "On the role of oceans in the geomagnetic induction by Sq along the 210. magnetic meridian region"Earth Planets Space. 55(6). 315-326 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Farrugia, C.J., K.Yumoto, et al.: "Large-scale geomagnetic effects of May 4, 1998"Advance in Space Research. 31(4). 1111-1116 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shiokawa, K., K.Yumoto, et al.: "Thermospheric wind during a storm-time large-scale traveling ionospheric disturbance"Journal of Geophysical Research. Vol.108(A12). SIA3 1-SIA3 13 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yamaguchi, R., K.Yumoto, et al.: "Total pressure variations in the magnetotail as a function of the position and the substorm magnitude"Journal of Geophysical Research. Vol.108(In Press). (2003)

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      2003 Annual Research Report
  • [Publications] Lee, D.-Y., L.R.Lyons, K.Yumoto: "Sawtooth oscillations directly driven by solar wind dynamic pressure enhancements"Journal of Geophysical Research. Vol.109(In Press). (2004)

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      2003 Annual Research Report
  • [Publications] Tanaka, Y.-M., K.Yumoto, et al.: "Longitudinal structure of Pc3 pulsation on the ground near the magnetic equator"Journal of Geophysical Research. Vol.109(In Press). (2004)

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      2003 Annual Research Report
  • [Publications] Parkhomov VA, K.Yumoto et al.: "Peculiarities of the magnetospheric response to pressure pulses in the solar wind as inferred from synchronous ground-based and satellite observation"Geomagnetism and Aeronomy. 43(1). 21-28 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Solovyev SI, K.Yumoto, et al.: "Characteristics of the global geomagnetic response to quasi-periodic variations in the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43(2). 172-180 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Motoba T, Kikuchi T, Okuzawa T, Yumoto K: "Dynamical response of the magnetosphere-ionosphere system to a solar wind dynamic pressure oscillation"Journal of Geophysical Research. 108(A5). 1206 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nose, M., K.Takahashi, T.Uozumi, K.Yumoto et al.: "Multipoint observations of a Pi2 pulsation on morning side : The September 20,1995,event"Journal of Geophysical Research. 108(A5). SMP9 1-SMP9 16 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Huang Chao-Song, K.Yumoto, et al.: "Global magnetospheric-ionospheric oscillations initiated by a solar wind pressure impulse"Journal of Geophysical Research. 108(A6). SMP7 1-SMP7 11 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Morioka, A., K.Yumoto, et al.: "AKR disappearance during magnetic storms"Journal of Geophysical Research. 108(A6). SMP3 1-SMP3 9 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Doumoya V, Cohen Y, Arora BR, Yumoto K: "Local time and longtitude dependence of the equatorial electrojet magnetic effects"Journal of Atmospheric and Solar-Terrestrial Physics. 65(14-15). 1265-1282 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Solovyev SI, Moiseyev AV, Yumoto K, Engebreston M: "Characteristics of magnetospheric-ionospheric disturbances during an increase of the solar wind dynamic pressure"Geomagnetism and Aeronomy. 43(5). 579-592 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sastri, J.H., Y.Kamide, K.Yumoto: "Signatures for magnetospheric substorms in the geomagnetic field of dayside equatorial region : Origin of ionospheric component"Journal of Geophysical Research. 108(A10). SIA4 1-SIA4 10 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yumoto Kiyohumi: "Transport of HM energy through the magnetospheric-ionosphere coupling system - Results from the ground-based network observations, Advances in Solar-Terrestrial"Terra Scientific Publishing Company (TERRAPUB). 211 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Anderson, D., A.Anghel, K.Yumoto, M.Ishitsuka, E.Kudeki: "Estimating daytime vertical ExB drift velocities in the equatorial Fregion using ground-based magnetometer observations"Geophys. Res. Lett.. 29, 12. 37-1-37-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Angelopoulos, V., J.A.Chapman, F.S.Mozer, J.D.Scudder, C.T.Russell, K.Tsuruda, T.Mukai, T.J.Hughes, K.Yumoto: "Plasma sheet electromagnetic power generation and its dissipation along auroral field lines"J. Geophys. Res.,. 107, A8. SMP14-1-SMP14-20 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hattori, K., Y.Akinaga, M.Hayakawa, K.Yumoto, T.Nagao, S.Uyeda: "ULF magnetic anomaly preceding the 1997 Kagoshima Earthquakes, Seismo Electromagntics : Lithosphere-Atmoshere-lonosphere Coupling, Eds. by M. Hayakawa and O. A. Molchanov"TERRAPUB. 19-28 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Higuchi, T., S, -I.Ohtani, T.Uozumi, K.Yumoto: "Pi 2 onset time determination with information criterion"J. Geophys. Res.. 107,A7. SMP14-1-SMP14-3 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kawano H., K.Yumoto, V.A.Pilipenko, Y.-M.Tanaka, S.Takasaki, M.lizima, M.Seto: "Ground-based identification of magnetospheric field line eigenfrequency as a continuous function of ground latitude"J. Geophys. Res.,. 107, A8. SMP25-1-SMP25-12 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kim, K.-H, C.A.Cattell, D.-H.Lee, K.Takahashi, K.Yumoto, K.Shiokawa, H.Singer, F.S.Mozer, M.Andre: "Magnetospheric responses to sudden and quasi-periodic solarwind variations"J. Geophys. Res. 107. (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Mishin, E.V., J.C.Foster, A.P.Potekhin, A.Potapov, F.J.Rich, K.Yumoto, K.Schlegel, V.I.Taran, H.B.Vo: "Global-scale, quasi-periodic disturbances during the magnetic storm September 25, 1998"J. Geophys. Res. 107. (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Motoba, T., T.Kikuchi, H.Lohr, H.tachihara, T-I.Kitamura, K.Hayashi, T.Okuzawa: "Global Pc 5 caused by a DP 2-type ionospheric current system"J. Geophys. Res.. 107, A2. SMP7-1-SMP7-12 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nishino, M., K.Makita, K.Yumot, F.S.Rodrigues, N.J.Schuch, M.A.Abdu: "Unusual ionospheric absorption characterizing energetic electron precipitation into the South Atlantic Magnetic Anomaly"Earth Planets Space. 54. 907-916 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ohtani, S.-I., R.Yamaguchi, M.Nose, H.Kawano, M.Engebretson, K.Yumoto: "Quiet-time magnetotail dynamics and their implications for the substorm trigger"J. Geophys. Res.. 107, A2. SMP6-1-SMP6-10 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shiokawa, K., Y.Otsuka, T.Ogawa, N.Balan, K.Igarashi, A.J.Ridley, D.J.Knipp, A.Saito, K.Yumoto: "A large-scale traveling ionospheric disturbance during the magnetric storm of September 15, 1999"J. Geophys. Res.. 107. (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shiokawa, K., K.Yumoto, J.V.Olson: "Multiple auroral brightenings and associated Pi2 pulsations"Geophys. Res. Lett.. vol.29,No.11. 32-1-32-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takahashi, K., K.Liou, K.Yumoto: "Correlative study of ultraviolet aurora and low-latitude Pi 2 pulsations"J. Geophys. Res.,. 107. (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Trivedi, N.B., D.G.Sibeck, E.Zesta, J.C.Santos, K.Yumoto, T.Kitamura, M.S Shionohara, S.L.G.Dutra: "Signatures of travelig convection vortices in ground magnetograms under the equatorial electrojet"J. Geohys. Res.. 107,No.A6. SMP16-1-SMP16-10 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Vassiliadis, D., A.J.Klimas, B.-H.Ahn, R.J.Parks, A.Viljanen, K.Yumoto: "High-Latitude electrodynamics from a multi-array nonlinear geomagnetic model"COSPAR Colloquia Ser.Vol.12 on Space Weather Study using Multi-point Techniques, Edited by Ling-Hsiao Lyu, Pergamon Press. 231-236 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Velichko V.A., R.N.Boroyev, M.G.Gelberg, D.G.Baishev, J.V.Olson, R.J.Morris, K.Yumoto: "North-south asymmetry of the substorm intensity depending on the IMF BY-component"Earth Planets Space. 54. 955-961 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yagova, N., K.Yumoto, V.Pilipenko, K.Hattori, T.Nagao, K.Saita: "Local variations of geomagnetic ULF noises and their relation to seismic activity, "Seismo Electromagntics : Lithosphere-Atmoshere-lonosphere Coupling""Eds. by M.Hayakawa and O.A.Molchanov, TERRAPUB. 45-48 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamaguchi, R., H.Kawano, S.Ohtani, T.Higuchi, K.Yumoto, T.Mukai, Y.Saito, The Circum-pan Pacific Magnetometer Network Group: "The timing relationship between bursty bulk flows and Pi2s at the geosynchronous orbit"Geophys. Res. Lettr.. 29,No.6. 16-1-16-4 (2002)

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      2002 Annual Research Report
  • [Publications] Yoshikawa, A., K.Yumoto, M.Shinohara, M.Itonaga: "Diagrammatic method to describe the self-inductive response of magnetosphere-ionosphere-atmosphere-Earth electromagneticallyc oupled system as a quasi-particle excitation"J. Geophys. Res.. 107,No.A5. SMP3-1-SMP3-9 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yoshikawa, A., Y.Obana, M.Shinohara, M.Itonaga, k.Yumoto: "Hall-induced inductive shielding effect on magnetic pulsationね"Geophys. Res. Lett.. 29,No.8. 1-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yumoto K., M.Shinohara, K.Nozaki, E.A.Orosco, Fr.V.Badillo, D.Bringas, the CPMN, WestPac Observation Groups: "Simultaneous Ground-based Observations 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. 243-247 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yumoto, k.: "Sudden changes during auroral substorm"Bifurcation Phenomena in Plasma edited by S-I Itoh and Y.Kawai, Kyushu Univ.. 217-227 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Cli, P.J., C.T.Russell, J.Raeder, E.Zesta, K.Yumoto, H.Kawano, K.Kitamura, S.M.Petrinec, V.Angelopoulos.G.Le, M.B.Moldwin: "Propagation of the preliminary reverse impulse of sudden commencements to low latitudes"J.Geophys.Res.. 106,A9. 18,857-18,864 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Farrugia, C.J., V.K.Jordanova, M.P.Freeman, C.C.Cocheci, R.L.Arnoldy, M.Engebretson, P.Stauning, G.rostoker, M.F.Thomsen, G.reeves, K.Yumoto: "Large-scale geomagnetic effects of May 4, 1998"Adv.Space Res.. (in press). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kepko, L., M.G.Kivelson, K.Yumoto: "Flow bursts, braking, and Pi2 pulsations"J.Geophys.Res.. 106,No.A2. 1903-1915 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Makarov, G.A., D.G.Baishev, S.I.Solovyev, V.A.Pilipenko, M.Engebretson, K.Yumoto: "Meridional propagation velocity of the geomagnetic sudden impulse in the high-latitude region"J.Geomag.Aeronomy. 41,No.5. 578-582 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nose, M., S.Ohtani, K.Takahashi, A.T.Lui, R.W.McEntire, D.J.Williams, S.P.Christon, K.Yumoto: "Ion composition of the near-Earth plasma sheet in substorm and quiet intervals : Geotail/EPIC measurements"J.Geophys.Res.. 106,A5. 8391-8403 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sakurai T., Y.Tonegawa, Y.Shinkai, K.Yumoto, S.Kokubun, K.Tsuruda, T.Mukai: "Poynting vectors of Pc 5 pulsations observed by the GEOTAIL satellite in the dayside outer magnetosphere"Earth Planets Space. 53. 843-849 (2001)

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      2001 Annual Research Report
  • [Publications] Kikuchi, T., S.Tsunomura, K.Hashimoto, K.Nozaki: "Field-Aligned Current Effects on Mid Latitude Geomagnetic Sudden Commencements"J.Geophys.Res.. 106,A8. 15555-15565 (2001)

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      2001 Annual Research Report
  • [Publications] Sastri, J.H., T.Takeuchi, T.Araki, K.Yumoto, S.Tsunomura, H.Tachihara, H.Luehr, J.Watermann: "Preliminary impulse of the geomagnetic storm sudden commencement of November 18, 1993"J.Geophys.Res. 106,A3. 3905-3918 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shiokawa, K., T.Ogawa, H.Oya, F.J.Rich, K.Yumoto: "A stable auroral red (SAR) arc observed in Japan after an interval of very weak solar wind"J.Geophys.Res.. 106,A11. 26091-26010 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shiokawa, K., Y.Otsuka, T.Ogawa, N.Balan, K.Igarashi, A.J.Ridley, D.J.Knipp, A.Saito, K.Yumoto: "A large-scale traveling ionospheric disturbance during the magnetric storm of September 15, 1999"J.Geophys.Res.. 106(in press). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Waters, C.L., M.D.Sciffer, B.J.Fraser, F.W.Menk, K.Foulkes, K.Brand, O.Saka, K.Yumoto: "The phase structure of very low latitude ULF waves across dawn"J.Geophys.Res.. 106,A8. 15599-15607 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yumoto, K, .the CPMN Group: "Characteristics of Pi 2 magnetic pulsations observed at the CPMN stations : A review of the STEP results"Earth Planets Space. 53. 981-992 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Akinaga, Y.M.Hayakawa, J.Y.Liu, K.Yumoto, K.Hattori: "A precursory ULF signature for Chi-Chi earthquake in Taiwan"Natural Hazard and Earth System Sciences. (in press). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Anderson, D., K.Yumoto, M.Ishitsuka, E.Kudeki: "Estimating daytime vertical ExB drift velocities in the equatorial F-region using ground-based magnetometer observations"Geophys.Res.Lett.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Higuchi, T., S, -I.Ohtani, T.Uozumi, K.Yumoto: "Pi 2 onset time determination with information criterion"J.Geophys.Res.. 107(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kawano H., K.Yumoto, V.A.Pilipenko, Y.-M.Tanaka, S.Takasaki.M.Iizima, M.Seto: "Ground-based identification of magnetospheric field line eigenfrequency as a continuous function of ground latitude"J.Geophys.Res.. 107(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ohtani, S.-I., R.Yamaguchi, M.Nos, H.Kawano, M.Engebretson, K.Yumoto: "Quiet-time magnetotail dynamics and their implications for the substorm trigger"J.Geophys.Res.. 107(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yamaguchi, R., H.Kawano, S.Ohtani, T.Higuchi, K.Yumoto, T.Mukai, Y.Saito, The Circum-pan Pacific Magnetometer Network Group: "The timing relationship between bursty bulk flows and Pi2s at the geosynchronous orbit"Geophys.Res.Lettr.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshikawa, A., M.Itonaga, M.Shinohara, Y.Obana, K.Yumoto: "The Hall induced shielding effect on the geomagnetic pulsations"Geophys.Res.Lettr.. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshikawa, A., M.Itonaga, M.Shinohara, K.Yumoto: "Diagrammatic method to describe the self-inductive response of magnetosphere-ionosphere-atmosphere-Earth electromagneticallyc oupled system as a quasi-particle excitation"J.Geophys.Res.. 107(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yumoto K., M.Shinohara, K.Nozaki, E.A.Orosco, Fr.V.Badillo, D.Bringas, the CPMN and WestPac Observation Groups: "Simultaneous Ground-based Observations of Electric and Magnetic Field Variations near the Magnetic Equator for Space Weather Study"COSPAR Colloqa Ser.Vol. on Space weather study using multi-point techniques, edited by Pergamon Press. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Angelopoulos, V., J.A.Chapman, F.S.Mozer, J.D.Scudder, C.T.Russell, K.Tsuruda, T.Mukai, T.J.Hughes, K.Yumoto: "Plasma sheet electromagnetic power generation and its dissipation along auroral field lines"J.Geophys.Res.. 106(in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Motoba, T., T.Kikuchi, H.Luhr, H.Tachihara, T.-I.Kitamura, K.Hayashi, T.Okuzawa: "Global Pc5 caused by a DP2-type ionospheric current system"J.Geophys.Res.. (in press). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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