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International Joint Observation of Thunder stroms in Iinter Tropical Convergence Zone

Research Project

Project/Area Number 10041142
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section海外学術
Research Field 電力工学・電気機器工学
Research InstitutionOSAKA UNIVERSITY

Principal Investigator

KAWASAKI Zen-ichiro  Osaka University, Dept.Comm Eng., Professor, 大学院・工学研究科, 教授 (60126852)

Co-Investigator(Kenkyū-buntansha) YAMAMOTO Kenji  Suzuka N.C.T, Dept.Ele.Eng., Prof., 電気工学科, 教授 (90270272)
WANG Daohoung  GIFU University, Dept.Ele.Eng., Associate Prof., 工学部・電気工学科, 助教授 (20273120)
TAKAGI Nobuyuki  GIFU University, Dept.Ele.Eng., Associate Prof., 工学部・電気工学科, 助教授 (80179415)
RCICHRAD Gum  GLT, CEO
HUGH Christi  NASA, Chief
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥9,100,000 (Direct Cost: ¥9,100,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1999: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1998: ¥4,100,000 (Direct Cost: ¥4,100,000)
KeywordsBig Thunder Clouds / VHF / UHF interferrometer / Optical observation / All sky camera / Final step / TRMM satellite observation / LIS / 熱帯収束帯 / LIS(lighning imaging Sensor) / LIS(Lighning Imaging Sensor)
Research Abstract

The result of this fiscal year is the point that it has been proved that "VHF wave Obihiro zone interferometer" designed and made as an experiment was the spotter plane which has a function as specification because of the concerned research execution. That is, it emanates in connection with thunder electric discharge. It can be concluded that it is the point that the aspect of the electric discharge which succeeds in locateing by - space decomposition ability when high, is commonly called "branch separation", and progresses in parallel almost simultaneous has visualized VHF/UHF band pulse. Usually, although visualization of an electric discharge way was VHF/UHF band and shape has been taken using the narrowband interfering method and a time lag method, in which method, the visualization about the electric discharge which progresses in the shape of tree is impossible, and although this research applicant etc. was realized for the first time in the world, he is not an overstatement. Cons … More equently, what takes the same course as the electric discharge way of the thunderstroke preceded until now, and the course from which the succession thunderstroke of the multiplex thunderbolt which will come for some dozens years and was believed is sometimes different are taken, and, as a result, it is shown clearly thunderbolt being a point of the thunderstroke which the thunderbolt point of a succession thunderstroke precedes, and that it is sometimes several km away. Furthermore, many observation-facts are found out taking advantage of the advantage of *s, such as detailed understanding about the starting point of thunder electric discharge, and the electric charge structure in the thundercloud which causes a multiplex thunderbolt, a development aspect of the electric discharge in a cloud, and electric wave observation. On the other hand, it succeeds also in observation of Red Sprites with a super-sensitive video camera, and is a joint research person. The New Zealand OTAGO university Red Sprite serves as the research result which should also mention having obtained the conclusion that it is "electric discharge" phenomenon to the ionosphere lower part from the thundercloud top part especially by collation with Professor D.Dowden's low cycle electromagnetic wave observation result, moreover - this - By observation of Red Sprite, the generating is not dependent on an area or latitude, it becomes and that it is a very general phenomenon has become being clear and the cause that the generating is found out successively after that in Hokuriku, the Mediterranean, etc. In addition, while official announcement printing of all the above-mentioned results is carried out at the U.S.geophysics meeting magazine and Institute of Electrical and Electronic Engineers, "VHF wave Obihiro zone interferometer" has become under the patent application (application number Japanese Patent Application No.11-170666). Less

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] Kawasaki et.al.: "Sprite observation in the Northern Territory of Australia"J.Geophys.Res.. 105. 4689-4697 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Redy,Kawasaki: "Broadband Radio Interferometer Utilizing a Sequential Triggering Technique for Locating Fast-Moving Electromagnetic Sources Emitted from Lightning"IEEE Trans.on Instrumentation and Measurement. 49. 376-381 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 吉橋,河崎,松浦,磯田,園井: "雷放電路三次元可視化とリーダ進展速度"電気学会論文誌B. 120. 838-843 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawada,Kawasaki,Matsuura: "Insulation Diagnostic Technique To Assess The Condition Of Generator Winding By Measuring Microwave Associated With Dielectric Breakdown"IEEE Trans.on Energy Conversion. 15. 19-23 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawasaki,Redy,Ushio: "Broadband and narrowband RF interferometers for lightning observations"Geophys.Res.Letters.. 27. 3189-3192 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Redy,Kawasaki: "Dependency of VHF broad band lightning source mapping on Fourier spectra"Geophys.Res.Letters.. 27. 2917-2920 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawasaki et. al.: "Sprite observation in the Northern Territory of Australia"J.Geophys.Res.. Vol.105. 4689-4697

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Redy, Kawasaki: "Broadband Radio Interferometer Utilizing a Sequential Triggering Technique for Locating Fast-Moving Electromagnetic Sources Emitted from Lightning"IEEE Trans.on Instrumentation and Measurement. Vol.49. 376-381 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yoshihashi, Kawasaki, Matsuura, Isosa, Sonoi: "3D imaging of lighting channel and leader progressin velocity"IEE J.Trans B. Vol.120. 838-843 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawada, Kawasaki, Matsuura: "Insulation Diagnostic Technique To Assess The Condition Of Generator Winding By Measuring Microwave Associated With Dielectric Breakdown"IEEE Trans.on Energy Conversion. Vol.15. 19-23 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawasaki, Redy, Ushio: "Broadband and narrowband RF interferometers for lightning observations"Geophys.Res.Letters.. Vol.27. 3189-3192 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Redy, Kawasaki: "Dependency of VHF broad band lightning source mapping on Fourier spectra"Geophys.Res.Letters.. Vol.27. 2917-2920 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawasaki et.al.: "Sprite observation in the Northern Territory of Australia"J.Geophys.Res.. 105. 4689-4697 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Redy,Kawasaki: "Broadband Radio Interferometer Utilizing a Sequential Triggering Technique for Locating Fast-Moving Electromagnetic Sources Emitted from Lightning"IEEE Trans.on Instrumentation and Measurement. 49. 376-381 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 吉橋,河崎,松浦,磯田,園井: "雷放電路三次元可視化とリーダ進展速度"電気学会論文誌B. 120. 838-843 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawada,Kawasaki,Matsuura: "Insulation Diagnostic Technique To Assess The Condition Of Generator Winding By Measuring Microwave Associated With Dielectric Breakdown"IEEE Trans.on Energy Conversion. 15. 19-23 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawasaki,Redy,Ushio: "Broadband and narrowband RF interferometers for lightning observations"Geophys.Res.Letters.. 27. 3189-3192 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Redy,Kawasaki: "Dependency of VHF broad band lightning source mapping on Fourier spectra"Geophys.Res.Letters.. 27. 2917-2920 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 吉橋,河崎,松浦,高木,渡辺: "冬季雷と雲内放電進展様相"電気学会論文誌B. Vol.119-B3. 375-380 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 河崎,松浦: "電波干渉計による夏季多重雷の三次元標定"電気学会論文誌B. 119-B. 605-613 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 河崎,野村,吉橋,松浦: "UHF波帯干渉計を用いた多重落雷及ぴ多地点落雷観測結果"電気学会論文誌B. 119-B. 614-619 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 河崎,太田,磯田他: "雷観測のための広帯域及ぴ狭帯域干渉計の比較"電気学会論文誌B. 119-B. 807-812 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 河崎: "UHF放射波から見たレーザ誘電"電気学会論文誌B. 119-B. 1001-1006 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hamid, Kawasaki, Mardiana, Matsuura: "TRMM/LIS observations of lightning activity over Indonesia and comparison with ground-base measurement around Java island"J. Atmosp. Electr.. Vol. 19. 153-164 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 細矢良夫: "電波伝搬ハンドブック"リアライズ社. 407 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 李,和田,河崎,松浦,竹内,園井: "Safirによる冬季雷観測結果" 電学論誌. Vol.118-B. 811-817 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ushio, Kawasaki, Matsuura, and Wang: "Electric fields of initial breakdown in positive ground flashes" J.Geophys.Res.Vol.103-12. 14135-14139 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mardiana, Ohta, Murakami, Kawasaki, and Matsuura: "A broadband radio interferometer for observing lightning discharge processes" J.Atmosp.Electricity. Vol.18-2. 111-117 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 牛尾,河崎,太田,陳,王,高木,渡辺,劉,郭: "中国高原雷の広帯域干渉計による観測" J.Atmosp.Electricity. Vol.18-2. 139-153 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 李,和田,河崎,松浦,竹内,園井: "北陸,若狭地方における1996年度冬季雷の活動" 天気. Vol.45-8. 655-661 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 吉橋,河崎,松浦,高木,渡辺: "冬季雷と雲内放電進展様相" 電学論誌. Vol.119-B3. 375-380 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 細矢良夫: "電波伝搬ハンドブック" リアライズ社, 407 (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2021-12-10  

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