神戸大学附属図書館デジタルアーカイブ
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https://hdl.handle.net/20.500.14094/90005119
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2024-04-30
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90005119 (fulltext)
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メタデータID
90005119
アクセス権
open access
出版タイプ
Version of Record
タイトル
Observational Study on Formation of a Localized Rainfall on a Basin with Heat and Aridity on Days of Weak Synoptic Disturbance in Summer
著者
著者名
Sano, Tetsuya
著者ID
A0426
研究者ID
1000030252521
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=5ce489e36d9e5d96520e17560c007669
著者名
Oishi, Satoru
大石, 哲
オオイシ, サトル
所属機関名
都市安全研究センター
収録物名
Journal of the Meteorological Society of Japan. Ser. II
巻(号)
96A
ページ
95-117
出版者
Meteorological Society of Japan
日本気象学会
刊行日
2018
公開日
2018-08-21
抄録
To elucidate the formation of localized rainfall in a basin with heat and aridity under a weak synoptic disturbance in summer, we described the characteristics of atmospheric conditions on the Kofu Basin preceding the appearance of primary precipitating cells from 23 localized rainfall events on the Kofu Basin on days of weak synoptic disturbance at the surface from 1 June to 30 September in 2012 to 2014. Furthermore, on the basis of a case study of an event on 25 July 2014, the formation of the atmospheric conditions was described from the standpoint of moisture behavior. Owing to the thermal contrast between the Kofu Basin with heat and aridity and the outside environment, the south-component wind blowing in the valley connecting to the coastal region of Suruga Bay and the east-component wind blowing in the valley connecting to the Kanto Plain entered the basin as southwesterly wind and southeasterly wind, respectively, which caused an increase in the water vapor mixing ratio and a slight decrease in temperature at the surface. Thereafter, the amount of precipitable water vapor derived from the global navigation satellite system observations (GNSS-PWV) in the central region of the Kofu Basin increased abruptly after the moderate increase in GNSS-PWV at all the observation points in the basin. Finally, a cloud appeared over the local region between the southwesterly wind and the southeasterly wind and precipitating cells appeared at that location at 3.25 to 6.25 km above sea level. We discussed the moisture transport into the Kofu Basin, the concentration of that moisture in a local region, and the appearance of precipitating cells. This is an example of the formation of atmospheric conditions leading to localized rainfall in a basin with heat and aridity.
キーワード
localized rainfall
surface wind
moisture transport
precipitating cell
Kofu Basin
カテゴリ
都市安全研究センター
学術雑誌論文
権利
©The Author(s) 2018.
This is an open access article published by the Meteorological Society of Japan under a Creative Commons Attribution 4.0 International (CC BY 4.0) license (http://creativecommons.org/license/by/4.0).
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資源タイプ
journal article
言語
English (英語)
ISSN
0026-1165
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eISSN
2186-9057
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関連情報
DOI
https://doi.org/10.2151/jmsj.2018-012
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