Microphysical Structure and its Formation Process Relating to Cloud-to-Ground Lightning Characteristics of Thunderclouds

雷云云地闪电特性的微物理结构及其形成过程

• 批准号: 22740312
• 负责人: SHUSSE Yukari
• 金额: $ 2.48万
• 依托单位: National Research Institute for Earth Science and Disaster Prevention
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22740312/
• 关键词: 雷雲; 落雷特性; 雲微物理構造; 偏波レーダー; 降水粒子; 落雷

Lightning activity is closely related to the hydrometeor types and those space-time distribution within thunderclouds. In this study, several thunderclouds which showed the distinctive characteristics of cloud-to-ground (CG) lightning were examined to reveal their microphysical structures and evolutions using the X-band polarimetric radars and the lightning location systems. A thundercloud with active .CG lightning started its lightning activity approximately 10 minutes after its occurrence. Polarimetric measurements indicate that a major hydrometeor within its strong echo region was graupel, while it was rain in a non-active thunderstorm. In a thunderstorm dominated +CG lightning, which is uncommon in warm season, it is considered that the positively charged wet graupel in the middle level of the cloud contributed to the generation of the +CG lightnings.

闪电活动与水流星类型及其在雷云中的时空分布密切相关。本文利用X波段偏振雷达和闪电定位系统，对几个具有明显地闪特征的雷云进行了观测，揭示了它们的微物理结构和演化过程。一片活跃的.CG闪电雷云在闪电发生约10分钟后开始闪电活动。偏振测量表明，在其强回波区域内的主要水流星是格鲁贝，而在非活跃的雷暴中是雨。在暖季少见的一次以+CG闪电为主的雷暴过程中，云中带正电的湿气流对+CG闪电的产生有一定的贡献。

项目成果

XバンドMPレーダと広帯域VHF干渉計を用いた夏季に発生する雷雲の3次元観測―MPレーダを用いた雷監視システムの構築に向けた研究―

利用X波段MP雷达和宽带VHF干涉仪对夏季雷云进行三维观测 - 利用MP雷达构建雷电监测系统的研究 -

• 作者: Kudo;R.;A. Uchiyama;A. Yamazaki;T. Sakami;Nobumasa Komori;櫻井南海子
• 通讯作者: 櫻井南海子

Polarimetric Radar Observation of the Melting Layer in a Convective Rainfall System during the Rainy Season over the East China Sea

• DOI: 10.1175/2010jamc2469.1
• 发表时间: 2011-03
• 期刊: Journal of Applied Meteorology and Climatology
• 影响因子: 3
• 作者: Y. Shusse;N. Takahashi;K. Nakagawa;S. Satoh;T. Iguchi

2010年7月5日に東京都北部に豪雨をもたらした降水システムの雨滴粒径分布と降水セルの振る舞い

2010年7月5日给东京北部带来大雨的降水系统的雨滴尺寸分布和降水单元行为

• 发表时间: 2011
• 作者: R. Kudo;and A. Uchiyama;兼田淳史・藤田峻輔・瀬戸久武;吉川裕;N. Komori;出世ゆかり・眞木雅之・岩波越・三隅良平・鈴木真一・加藤敦・前坂剛・清水慎吾・平野洪賓・櫻井南海子・木枝香織
• 通讯作者: 出世ゆかり・眞木雅之・岩波越・三隅良平・鈴木真一・加藤敦・前坂剛・清水慎吾・平野洪賓・櫻井南海子・木枝香織

Polarimetric adar observation of the melting layer in a convective rainfall system during the rainy season over the East China Sea.

东海雨季对流降雨系统融化层的偏振雷达观测.

• 发表时间: 2011
• 期刊: J. Appl. Meteor. Climatol
• 作者: Shusse;Y.;N. Takahashi;K. Nakagawa;S.Satoh;and T Iguchi
• 通讯作者: and T Iguchi

台風0918号の中心付近で局所的な落雷をもたらした降水雲の特性

0918号台风中心附近引起局地雷击的降水云特征

• 发表时间: 2010
• 作者: Takahiro Endoh;Takeshi Matsuno;Yutaka Yoshikawa;Eisuke Tsutsumi;工藤玲,内山明博,山崎明宏,坂見智法;出世ゆかり・坪木和久・大東忠安・上田博
• 通讯作者: 出世ゆかり・坪木和久・大東忠安・上田博