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Snowfall thunderclouds observations around Hokuriku area in consideration of electrical and terrain effects

Research Project

Project/Area Number 16K05555
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionKobe City College of Technology

Principal Investigator

Yoshitaka Nakamura  神戸市立工業高等専門学校, 電気工学科, 准教授 (70609817)

Co-Investigator(Kenkyū-buntansha) 森本 健志  近畿大学, 理工学部, 准教授 (60403169)
本吉 弘岐  国立研究開発法人防災科学技術研究所, 雪氷防災研究部門, 主任研究員 (70571462)
酒井 英男  富山大学, 大学院理工学研究部(理学), 名誉教授 (30134993)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords冬季雷 / リモートセンシング / 冬季雷観測 / 大気電気学 / 降雪雲
Outline of Final Research Achievements

To study the relationship between lightning activity and snow cloud mode, we classified snowfall clouds into three types by their shapes and radar echo motions: (1) L-mode clouds that develop parallel to the wind direction, (2) T-mode clouds that develop perpendicular to the wind direction, and (3) V-mode clouds that is strongest spiral convection cloud in the JPCZ.
Based on lightning flash rate, L-mode clouds is higher than T-mode clouds in lightning activity. L-mode clouds could be divided into those with and without lightning. Our observations suggest that the JPCZ greatly influences lightning activities in Hokuriku.

Academic Significance and Societal Importance of the Research Achievements

北陸地域の冬季雷活動は「雪おこし」や「鰤おこし」などと呼ばれるとおり,冬の初めに活発で,真冬には雷活動が低いことが知られている.冬季雷活動による落雷被害も深刻であり,雷活動を含めた積乱雲の解明が求められている.冬季落雷の親雲である雪雲をその要因別に解析することで,落雷に対する警戒の指標を提供しうるものとなる.また,シーズンにより雷活動の活発度が異なるため,観測事例を蓄積することが大気電気学分野で有効である.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2018 2017

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Termination of Electron Acceleration in Thundercloud by Intracloud/Intercloud Discharge2018

    • Author(s)
      Wada Y.、Bowers G. S.、Enoto T.、Kamogawa M.、Nakamura Y.、Morimoto T.、Smith D. M.、Furuta Y.、Nakazawa K.、Yuasa T.、Matsuki A.、Kubo M.、Tamagawa T.、Makishima K.、Tsuchiya H.
    • Journal Title

      Geophysical Research Letters

      Volume: 45 Issue: 11 Pages: 5700-5707

    • DOI

      10.1029/2018gl077784

    • NAID

      120006488573

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Relationship between Winter Lightning and Snowfall Modes in Japan2018

    • Author(s)
      Fumiya Beniya, Yoshitaka Nakamura, Takeshi Morimoto, Hiroki Motoyoshi, Hideo Sakai
    • Organizer
      The 16th International Conference on Atmospheric Electricity
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-resolution Study on Lightning and Precipitation Activity by EM Observations in Toyama, Japan2018

    • Author(s)
      Takeshi Morimoto, Makoto Tojyo, Yoshitaka Nakamura, Fumiya Beniya, Hideo Sakai, Masahito Shimizu, Kodai Nagata
    • Organizer
      The 16th International Conference on Atmospheric Electricity
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Active and passive remote sensing on lightning and precipitation activities around Toyama Bay, Japan2018

    • Author(s)
      Takeshi Morimoto, Makoto Tojyo, Yoshitaka Nakamura, Fumiya Beniya, Hideo Sakai, Masahito Shimizu, Kodai Nagata
    • Organizer
      The 40th Progress in Electromagnetics Research Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] LF帯雷受信機の富山湾への展開と冬季雷雲観測2018

    • Author(s)
      中村佳敬,加藤健太郎,藤井凌,紅谷郁弥,酒井英男,森本健志,本吉弘岐
    • Organizer
      2018年電気設備学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 2016年度冬季北陸地方における雪雲モードと落雷との関係2018

    • Author(s)
      浜田一星,中村佳敬,紅谷郁弥,酒井英男,森本健志,本吉弘岐,清水雅仁,永田広大
    • Organizer
      日本大気電気学会第96回研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] LF帯電磁波を用いた富山湾周辺の雷観測網構築と初期観測結果2017

    • Author(s)
      坂戸雅智,森本健志,梶原正鶴,中村佳敬,紅谷郁弥,酒井英男
    • Organizer
      平成29年電気学会全国大会
    • Place of Presentation
      富山大学(富山県富山市)
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 富山湾周辺の雷位置標定に向けたLF 帯広帯域受信機の初期観測2017

    • Author(s)
      梶原正鶴,中村佳敬,坂戸雅智,森本健志,紅谷郁弥,酒井英男
    • Organizer
      日本大気電気学会第95回研究発表会
    • Place of Presentation
      神戸研究学園都市大学利用施設UNITY
    • Year and Date
      2017-01-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 広帯域レーダ,広帯域干渉計およびLLSで観測された雷雲と雷活動の時間変化2017

    • Author(s)
      宮本裕紀,森本健志,中村佳敬,酒井英男,清水雅仁,永田広大
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] LF帯電磁波を用いた富山湾周辺の雷観測網構築と冬季雷観測2017

    • Author(s)
      森本健志,坂戸雅智,宮本裕紀,梶原正鶴,中村佳敬,紅谷郁弥,酒井英男
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] 富山湾周辺におけるLF帯電磁波を用いた雷観測網構築と初期観測結果2017

    • Author(s)
      紅谷郁弥,森本健志,中村佳敬,酒井英男
    • Organizer
      平成29年度電気関係学会北陸支部連合大会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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