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Study of Particle Precipitation and Wave-Particle Interactions in the Magnetosphere-Ionosphere Coupling System

Research Project

Project/Area Number 62420013
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field Space and upper atmospheric physics
Research InstitutionThe University of Tokyo

Principal Investigator

KOKUBUN Susumu  University of Tokyo, Faculty of Science, Professor, 理学部, 教授 (00011502)

Co-Investigator(Kenkyū-buntansha) MIURA Akira  University of Tokyo, Faculty of Science, Research Associate, 理学部, 助手 (20126171)
HAYASHI Kanji  University of Tokyo, Faculty of Science, Associate Professor, 理学部, 助教授 (60011730)
IIJIMA Takesi  University of Tokyo, Faculty of Science, Associate Professor, 理学部, 助教授 (70011624)
TAMAO Tsutomu  University of Tokyo, Faculty of Science, Professor, 理学部, 教授 (50013636)
OGUTI Takasi  Nagoya University, Res.Inst. of Atmospherics, Professor, 空電研究所, 教授 (40011457)
山本 達人  東京大学, 理学部, 助手 (90182633)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥27,500,000 (Direct Cost: ¥27,500,000)
Fiscal Year 1989: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 1988: ¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1987: ¥16,400,000 (Direct Cost: ¥16,400,000)
KeywordsAurora / Magnetospheric Plasma Waves / Magnetosphere-Ionosphere Coupling / Field-Aligned Current / Magnetospheric Substorms / Geomagnetic Pulsations / オーロラ / 沿磁力電流 / 磁気圏 / 電離圏結合 / 沿磁力線電流
Research Abstract

In order to analyze a plenty of data efficiently, which were obtained in the multi-station campaign in 1985-86 and with spacecraft, a work station, VAX 3200, was installed with a graphic software [UNIRAS]. We developed several software for processing of aurora image data and for frequency-time displays of spectra of various time series, etc.. These software have been used for the analyses of UV auroral images and triaxial search coil data from the EXOS-D satellite launched in February, 1989. We obtained global pictures of expanded oval and high-time resolution images for the initial brightening of auroral substorm in an expanded oval during large magnetic storms. Search coil measurements of ELF electromagnetic noises reveal the existence of a variety of ELF plasma waves near the equatorial plasmasphere of L values, 1.5-2.5 as well as along the auroral field lines.
Analyses of magnetic field data from ISEE and AMPTE/CCE spacecraft have been made to investigate signatures of field-aligned … More currents in the boundary of the plasmasheet and in the near-tail region, and properties of bimodal magnetic impulses like flux transfer events near the dayside magnetopause. The statistical analysis of ISEE data indicates that the field-aligned current signatures in the near-tail region are consistent with observations at low-altitudes. The ballooning instability in the magnetosphere was theoretically examined in relation to the excitation mechanism of compressional Pc 5 waves, which are shown to be confined to a localized region near the magnetic equator.
Dynamic morphology of auroras has been studied by using high-resolution TV data obtained simultaneously at several ground stations. It is found that development of north-south aligned-arcs is an essential feature in the central region of auroral substorm and that correspond to appearances of dispersionless electron injections at geosynchronous orbit. Dispersive electron injections at synchronous orbit are observed in local time sector conjugate to the region of pulsation auroras. Less

Report

(4 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] KOKUBUN Susumu: "Local Time Aymmetry of Pc 4-5 Pulsations and Associated Particle Modulations at Synchronous Orbit." J.Geophys.Res.94. 6607-6625 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] MIURA Akira: "Ballooning Instability and Structure of Diamagnetic Hydromagnetic Waves in a Model Magnetosphere." J.Geophys.Res.94. 15231-15242 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] OHTANI Shin-ichi: "Coupling between Alfven and Slow Magnetosonic Waves in an Inhomogeneous Finite-β Plasma- I.Coupled Epuations and Physical Mechanism." Planet.Space Sci.37. 567-577 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] OHTANI Shin-ichi: "Coupling between Alfven and Slow Magnetosonic Waves in an Inhomogeneous Finite-β Plasma-II.Eigenmode Analysis of Localized Ballooning-Interchange Instability." Planet.Space Sci.37. 579-588 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] IIJIMA Takeshi: "Large-scale Characteristics of Magnetospheric Epuatorial Currents." J.Geophys.Res.(in press). 95. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] OGUTI Takasi: "Studies of Auroral Dynamics by Aurora-TV(ATV)on the AKEBONO(EXOS-D)Satellite." J.Geomag.Geoelectr.(in press). 41. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Oguti,T., E.Kaneda, K.Hayashi, T.Yamamoto, M.Ejiri, R.Fujii, A.Kadokura, S.Sasaki, and K.Makita: "Studies of auroral dynamics by aurora-TV (ATV) on the AKEBONO (EXOS-D) satellite." J. Geomag. Geoelectr.41. (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Iijima,R., T.A.Potemra, and L.J. Zanetti: "Large-scale characteristics of magnetospheric equatorial currents." J. Geophys. Res.95. 991-1000 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ohtani,S., A,Miura, and T.Tamao: "Coupling between Alfven and slow magnetosonic waves in an inhomogeneous finite-beta plasma - II. Eigenmode analysis of localized ballooning-interchange instability." Planet. Space Sci. 37, 579-588, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ohtani,S., A.Miura, and T.Tamao: "Coupling between Alfven and slow magnetosonic waves in an inhomogeneous finite-beta plasma - I. Coupled equations and physical mechanism." Planet. Space Sci. 37, 56-577, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Miura,A., S.Ohtani, and T.Tamao: "Ballooning instability and structure of diamagnetic hydromagnetic waves in a model magnetosphere." J. Geophys. Res. 94, 15231-15242, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kokubun,S., K.N.Erickson, T.A.Fritz, and R.L.McPherron: "Local time asymmetry of Pc 4-5 pulsations and associated particle modulations at synchronous orbit." J. Geophys. Res. 94, 6607-6625, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ohtani,S., S.Kokubun, R.C.Elphic, and C.T.Russell: "Field-aligned current signatures in the near tail region. I. Observations in the plasma sheet boundary layer." J. Geophys. Res. 93, 9709-9720, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Oguti,T., T.Yamamoto, K.Hayashi, S.Kokubun, A.Egeland, and J.A.Holtet: "Dayside auroral activities and related magnetic impulses in the polar cusp region." J. Geomag. Geoelectr. 40, 387-408, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Nakamura,R., T.Yamamoto, and T.Oguti: "Enhancements in auroral drift velocity in the dusk sector associated with a small substorm in the midnight sector." J. Geomag. Geoelectr. 40, 409-422, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Higuchi,T., and S.Kokubun: "Waveform and polarization of compressional Pc5 waves at geosynchronous orbit." J. Geophys. Res. 93, 14433-14443, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Hayashi,K., T.Yamamoto, S.Kokubun, T.Oguti, T.Ogawa, N.Iwagami, T.Araki, T.Kitamura, O.Saka, K.Makita, N.Sato, T.Watanabe, R.E.Horita, D.McEwen, J.S.Kim, and A.Egeland: "Multi-station observation of IPDP micropulsations - Two-dimensional distribution and evolution of the source regions." J. Geomag. Geoelectr. 40, 583-619, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yamamoto,T., K.Hayashi, S.Kokubun, T.Oguti, T.Ogawa, N.Iwagami, T.Kitamura, O.Saka, T.Araki, K.Makita, T.Watanabe, R.E.Horita, and J.S.Kim: "Auroral activities and long period geomagnetic pulsations. 1. Pc5 pulsations and concurrent auroras in the dawn sector." J. Geomag. Geoelectr. 40, 553-569, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yamamoto,T., K.Hayashi, S.Kokubun, T.Oguti, T.Ogawa, N.Iwagami, T.Kitamura, O.Saka, T.Araki, K.Makita, T.Watanabe, R.E.Horita, and J.S.Kim: "Auroral activities and long period geomagnetic pulsations. 2. Pc5 pulsations following auroral breakup in the premidnight hours." J. Geomag. Geoelectr. 40, 571-582, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kokubun,S., T.Yamamoto, K.Hayashi, T.Oguti, and A.Egeland: "Impulsive Pi bursts associated with poleward moving auroras near the polar cusp." J. Geomag. Geoelectr. 40, 537-551, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Oguti,T., T.Yamamoto, K.Hayashi, S.Kokubun, T.Ogawa, N.Iwagami, T.Kitamura, O.Saka, T.Araki, K.Makita, N.Sato, T.Watanabe, R.E.Horita, and J.S.Kim: "Fast auroral evolution and related magnetic fields changes on the ground and at conjugate satellites." J. Geomag. Geoelectr. 40, 505-536, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] KOKUBUN Susumu: "Local Time Asymmetry of Pc 4-5 Pulsations and Associated Particle Modulations at Synchronous Orbit." J.Geophys.Res.94. 6607-6625 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] MIURA Akira: "Ballooning Instability and Structure of Diamagnetic Hydromagnetic Waves in a Model Magnetosphere." J.Geophys.Res.94. 15231-15242 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] OHTANI Shin-ichi: "Coupling between Alfven and Slow Magnetosonic Waves in an Inhomogeneous Finite-beta Plasma-I.Coupled Equations and Physical Mechanism." Planet.Space Sci.37. 567-577 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] OHTANI Sin-ichi: "Coupling between Alfven and Slow Magnetosonic Waves in an Inhomogeneous Finite-beta Plasma -II.Eigenmode Analysis of Localized Ballooning-Interchange Instability." Planet.Space Sci.37. 579-588 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] IIJIMA Takeshi: "Large-Scale Characteristics of Magnetospheric Equatorial Currents." J.Geophys.Res.95. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] OGUTI Takasi: "Studies of Auroral Dynamics by Aurora-TV(ATV)on the AKEBONO(EXOS-D) Satellite." J.Geomag.Geoelectr.41. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] IIJIMA,Takesi: J.Geophys.Res.93. in′press (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] HIGUCHI,Tomoyuki: J.Geophys.Res. 93. 14433-14443 (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] KOKUBUN,Susumu: J.Geophys.Res.94. inpress (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] NAKAMURA,Rumi: J.Geomaqh.Geoelectr.40. 409-422 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] OGUTI,Takasi: J.Geomaqn.Geoelectr.40. 387-408 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] OHTANT,Shinichi: J.Geoplhys.Res.93. 9709-9720 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] OGUTI Takasi: J. Geomagn. Geoelectr.40. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] KOKUBUN Susumu: J. Geomagn. Geoelectr.40. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] YAMAMOTO Tatsundo: J. Geomagn. geoelectr.40. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] YAMAMOTO Tatsundo: J. Geomagn. Geoelectr.40. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] HAYASHI Kanji: J. Geomagn. Geoelectr.40. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] OHTANI Shinichi: J. Geophys. Res.1988 (93)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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