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Energy coupling between atmosphere and inosphere via electrical descharge

Research Project

Project/Area Number 13304037
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionTohoku University

Principal Investigator

FUKUNISHI Hiroshi  Tohoku University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (90099937)

Co-Investigator(Kenkyū-buntansha) FUJIWARA Hitoshi  Tohoku University, Graduate School of Environmental Studies, Research Associate, 大学院・理学研究科, 助手 (50298741)
MURATA Isao  Tohoku University, Graduate School of Science, Associate Professor, 大学院・環境科学研究科, 助教授 (00291245)
TAKAHASI Yukihiro  Tohoku University, Graduate School of Science, Lector, 大学院・理学研究科, 講師 (50236329)
YUMOTO Kiyofumi  Kyushu University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (20125686)
SAKANOI Takeshi  Tohoku University, Graduate School of Science, Research Associate, 大学院・理学研究科, 助手 (80271857)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥48,100,000 (Direct Cost: ¥37,000,000、Indirect Cost: ¥11,100,000)
Fiscal Year 2003: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2002: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2001: ¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Keywordssprite / elves / lightning / thundercloud / ELF / VLF / Solar activity / Schumann resonance / 超高層大気 / 中層大気 / 電荷モーメント / ピーク電流 / シミュレーション / 大気発光 / 冬季 / 日本 / スプライトヘイロー / 電子エネルギー / 冬季雷 / 高速撮像 / フォトメータ
Research Abstract

In order to investigate the generation mechanisms of luminous events in the middle and upper atmosphere induced by lightning discharge and their relationship to the parental thunderstorm activity, some observation campaigns and continuous measurements have been carried out using a multipoint observation system composed of several optical instruments and VLF-ELF radio wave sensors. Detail analysis and computer simulations based on the observation data clarified following issues : (1) Thunderclouds producing sprites around Japan in wintertime are classified into 4 types and the apparent feature of sprites depends on the geographic location. (2) Cloud to ground discharge generating winter sprites in Japan occurs in the most active convective region of the thundercloud. (3) Considering the appearance of intermittent radio wave in VLF range just after sprite optical emissions, it is suggested that hybrid type discharge consisting of cloud-to-ground and intra-cloud discharges is relating to sprite generation. (4) Number of columns in a sprite event well correlates to the peak current of the parent lightning while the vertical length of column shows good correlation with charge moment of the cloud to ground lightning. (5) The average upper and bottom heights and the horizontal extent of sprite halo are 88 km, 73 km and 86 km, respectively. The estimated electron energy is 6 ?23 eV. (6) The average number of sprite evens for a day is estimated to be 720 based on the ELF measurements. (7) The lightning energy shows variation with a time period of 27.9 days, which may be caused by solar activity. (8) Sprites and sprite halo could be major sources of O(D) in the nighttime mesosphere.

Report

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

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 足立 透, 福西 浩, 高橋 幸弘, 佐藤 光輝: "カラム型スプライトの生成におけるEMP及び準正電場の役割"Geophysical Research Letters. 31. L04107 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.T.Su, R.R.Hsu, A.B.Chen, W.S.Hsiao, 他4名: "雷雲と電離層の間の巨大ジェット"Nature. 423. 974-976 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 宮里 梨奈 他3名: "フォトメータ及びイメージの同時データを用いたスプライトヘイロー現象の統計的特徴"Geophys.Res.Lett.. 29. 29-1-29-4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 高橋 幸弘, 宮里 梨奈, 足立 透, 他3名: "日本冬季におけるスプライトとエルブスの活動"Journal of Atmospheric and Solar-Terrestrial Physics. 65. 551-560 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐藤 光輝, 福西 浩: "過渡的シューマン共鳴現象から求められた全級的なスプライトの発生位置と頻度"Geophysical Research Letters. 30. 10-1-10-4 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 宮里 梨奈, 福西 浩, 他2名: "アレイフォトメータデータを用いたスプライトハローを発生させる電子のエネルギー推定"Journal of Atmospheric and Solar-Terrestrial Physics. 65. 578-581 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.ROSS STONE, EDITOR: "電波科学レビュー"Wiley Inter Science. 977 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Adachi, T., H.Fukunishi, Y.Takahashi, M.Sato: "Roles of the EMP and QE field in the generation of columniform sprites"Geophys.Res.Lett. 31. L04107,doi:101029/2003 GL19081

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Su, H.T., R.R.Hsu, A.B.Chen, Y.C.Wang, W.S.Hsiao, W.C.Lai, L.C.Lee, M.Sato, H.Fukunishi: "Gigantic jets between a thundercloud and the ionosphere"Nature. 423. 974-976 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Miyasato R., M.J.Taylor, H.Fukunishi, H.C.Stonbaek-Nielsen: "Statistical Characteristics of Sprite halo Events Using Coincident Photometric and imaging Data"Geophys.Res.Lett. 29-1-29-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takahashi, Y., R.Miyasato, T.Adachi, K.Adachi, M.Sera, A.Uchida, H.Fukunishi: "Activities of sprites and elves in the winter season, Japan"J.Atmos.Sol-Terr.Phys.. 65. 551-560 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sato, M., H.Fukunishi: "Global sprite occurrence locations and rates derived from triangulation of transient Schumann resonance events"Geophys.Res.Lett. 30. 10-1-10-4 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Miyasato, R., H.Fukunishi, Y Takahashi, M.J.Taylor: "Energy estimation of electrons producing sprite halos using array photometer data"J.Atmos.Sol-Terr.Phys. 65. 578-581 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.Ross Stone: "REVIEW OF RADIO SCIENCE"Wiley Inter Science. 977 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Adachi, T., et al.: "Roles of the EMP and QE in the generation of columnform sprites"Geophys.Res.Lett.. Vol.31 No.4. 10.1029/2003GL019081 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takahashi, Y. et al.: "Activities of sprites and elves in the winter season, Japan"J. Atmos. Solar Terr. Phys.. (In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Miyasato, R., H.Fukunishi, Y.Takahashi, M.J.Taylor: "Energy estimation of electrons producing sprite halos using array photometer data"J. Atmos. Solar. Terr. Phys.. (In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Miyasato, R., et al.: "Characteristics of sprites halo events using photometric and imaging data"Geophys. Res. Lett.. (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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