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Interaction between the neutral wind in the ionosphere and the magnetosphere

Research Project

Project/Area Number 08454136
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

IYEMORI Toshihiko  Faculty of Science, Kyoto University, Associate Professor, 理学部, 助教授 (40144315)

Co-Investigator(Kenkyū-buntansha) TAKEDA Masahiko  Faculty of Science, Kyoto University, Res.Associate, 理学部, 助手 (30236484)
KAMEI Toyohisa  Faculty of Science, Kyoto University, Res.Associate, 理学部, 助手 (10233967)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1997: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1996: ¥6,100,000 (Direct Cost: ¥6,100,000)
Keywordsionosphere-magnetosphere coupling / neutral wind / field-aligned current / ionospheric dynamo / HF.radar / magnetosphere / ionosphere / magnetospheric current
Research Abstract

(1)The neutral wind is expected to play important roles in the inner magnetosphere because of the higher energy and momentum densities comparing with the plasma components. In fact, we discovered through this study a new large scale current system which is supposed to be generated by the neutral wind in the ionosphere. The above result obtained by the Dynamics Explorer(DE)-1 magnetic field observation was confirmed by the data obtained by the DE-2 satellite.
(2)The ionospheric electric field irregularities have been studied by a conjunction study between the Shigaraki MU radar and the Freja satellite observation. The close connection between the TID(Traveling Ionopheric Disturbance)and the mid-latitude electric fluctuation has been found.
(3)The IMF control on the ionospheric density has been re-examinedby using the Shigaraki MU rada data etc..Some new results which indicate the no relation between them are obtained.
(4)A computer system for HF radar network data analysis is assembled and the software is installed.
(5)A software to analyze the equivalent current system at any given time and date was developed.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] Iyemori, T.: "Solar and IMF effects on mid-latitude ionospheric electric fields and foF2" J.Geomag.Geoelectr.48. 1219-1232 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nakabe, S.: "A statistical study of the magnetic field structure in the inner magnetosphere" J.Geophys.Res.102. 17571-17582 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Saito, A.: "Conjugate observations of the mid-latitude electric field flactuations with the MU radar and Freja satellite" J.Atmosph.Terr.Phys.60. 129-140 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iyemori, T.: "Time evolution of global equivalent current system associated with partial ring current (Extended Abstract)" Proc.NIPR Symp.Upper Atmos.Phys.11(印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iyemori, T.: "Solar and IMF effects on mid-latitude ionospheric electric fields and fo F2" J.Geomag.Geoelectr.48. 1219-1232 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nakabe, S.: "A statistical study of the magnetic field structure in the inner magnetosphere" J.Geophys.Res.102. 17571-17582 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Saito, A.: "Conjugate observations of the mid-latitude electric field fluctuations with the MU radar and Freja satellite" J.Atmosph.Terr.Phys.60. 129-140 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iyemori, T.: "Time evolution of global equivalent current system associated with partial ring current(Extended Abstract)" Proc.NIPR Symp.Upper Atmos.Phys.11 in press. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Iyemori,T.: "Solar and IMF effects on mid-latitude ionospheric electric fields and foF2" J.Geomag.Geoelectr.48・10. 1219-1232 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Nakabe,S.: "A statistical study of the magnetic field structure in the inner magnetosphere" J.Geophys.Res.102・. 17571-17582 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Saito,A.: "Conjugate observations of the mid-latitude electric field fluctuations with the MU radar and Freju satellite" J.Atmosph.Terr.Phys.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Iyemori,T.: "Time evolution of global equivalent current system associated with partial ring current (Extended Abstract)" Proc.NIPR Symp.Upper Atmos.Phys.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Iyemori,T.: "Solar and TMF effects on mid-latitude ionospheric electric fields and foF2" J.Geomag.Geoelectr.48・1. 1219-1232 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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