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タカヤ コウタロウ
TAKAYA KOTARO
高谷 康太郎 所属 京都産業大学 理学部 宇宙物理・気象学科 職種 教授 |
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| 言語種別 | 日本語 |
| 発行・発表の年月 | 2019/09 |
| 形態種別 | 研究論文（大学，研究機関等紀要） |
| 標題 | 冬季極東域における寒暖で分類したEl Niño 発生時の中高緯度大気の応答 |
| 執筆形態 | その他 |
| 掲載誌名 | 京都大学防災研究所年報 |
| 出版社・発行元 | 京都大学防災研究所 |
| 巻・号・頁 | 62B(0),379-385頁 |
| 著者・共著者 | 塩崎公大,榎本剛,高谷康太郎 |
| 概要 | It is well-known that El Niño typically brings warm winter in the Far East and that Western Pacific (WP) and Pacific/North American (PNA) often appear. However, significant events have opposite tendencies. To understand the cause of the difference, composite analysis has been conducted using long-term reanalysis datasets. Our analysis shows that about 63% of El Niño events occurred from1948 are classified as the warm and about 37% as the cold events. Furthermore, the WP and PNA seem to be mutually exclusive and are dominant during warm and cold winters, respectively. The SST anomaly in the Philippine Sea is negative more than that during cold winter. The SST anomaly distribution is corresponding to the Walker circulation anomaly. These differences are appeared from the fall and developed to the winter. Therefore, it is suggested that the disparate mid-latitude responses are associated with SST and the Walker circulation variations in the western Pacific Ocean. |
| ISSN | 0386-412X |
| NAID | 120006770320 |
| PermalinkURL | http://hdl.handle.net/2433/244971 |