| JaLCDOI |
10.18926/ESR/47748
|
| タイトル（別表記） |
Characteristics of typhoon tracks and large-scale atmospheric fields associated with the typhoon approach to the Japan Islands in early summer
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| フルテキストURL |
esr_018_1_011_018.pdf
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| 著者 |
濱本 奈津美|
加藤 内藏進|
中山 祐貴|
塚本 修|
|
| 抄録 |
The number of typhoons approaching the Japan Islands is much smaller in May and June than in August to September. However, some typhoons abnormally approach to the Japan Islands in May or June as in 2004. The present study investigated the characteristics of the typhoon tracks and the large-scale fields in May and June associated with the approach of typhoons to the Japan Islands. Climatologically speaking, typhoons are generally formed in the lower latitude in May and early June, and tend to turn to ENE-ward before they reach ~ 20N in May by the upper- and middle-level westerly wind. In June, the upper-level easterly wind associated with the Tibetan high seems to prevent typhoons from approaching to the Japan Islands. However, when the cell-type subtropical high and the deep westerly trough in its western side are formed with the SW-ly from the lower to the middle latitude, a favorable situation for the northward invasion of the typhoon can be realized in May. On the other hand, the formation of the barotropic-like subtropical high to the southeast of the Japan Islands seems to enable a typhoon to approach to the Japan Islands by the S-ly wind around the subtropical high.
|
| キーワード |
typhoon tracks in early summer
large-scale atmospheric fields in early summer
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| 出版物タイトル |
Okayama University Earth Science Report
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| 発行日 |
2011-12-26
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| 巻 |
18巻
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| 号 |
1号
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| 開始ページ |
11
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| 終了ページ |
18
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| ISSN |
1340-7414
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| 言語 |
日本語
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| 著作権者 |
© 2011 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
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| 論文のバージョン |
publisher
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| NAID |
120003796476
|
