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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/25417

Title: Importance of pre-existing oceanic conditions to upper ocean response induced by Super Typhoon Hai-Tang
Authors: Zhe-Wen Zheng;Chung-Ru Ho;Nan-Jung Kuo
Contributors: NTOU:Department of Marine Environmental Informatics
國立臺灣海洋大學:海洋環境資訊系
Keywords: SEA-SURFACE TEMPERATURE;TROPICAL CYCLONE;BOUNDARY-LAYER;HURRICAN
Date: 2008
Issue Date: 2011-10-20T08:23:09Z
Publisher: GEOPHYSICAL RESEARCH LETTERS
Abstract: abstract:This study investigates upper ocean response to Super Typhoon Hai-Tang, the most intense typhoon in 2005, in the western North Pacific using multi-satellite microwave data, typhoon data and Argo profiles. Sequential merged microwave sea surface temperature (SST) images show that Hai-Tang induced four separately cooling responses after its trail in the western North Pacific during 11–18 July. Comparison between upper ocean responses of cooling SST and pre-typhoon sea surface height suggests that these cooling responses of the upper ocean to Hai-Tang are closely associated with pre-existing cyclonic circulation denoted by pre-existing negative sea surface features. Furthermore, applying Argo profiles, the physical mechanism is confirmed to be associated with pre-existing cyclonic circulations provide a relatively unstable thermodynamic structure, and therefore cold water would be brought up readily. This paper provides the rather convincing evidence that cyclonic flow and uplifted thermocline are the pre-existing conditions for intensive cooling following the typhoon passage.
Relation: 35(20), pp.L20603
URI: http://ntour.ntou.edu.tw/handle/987654321/25417
Appears in Collections:[海洋環境資訊系] 期刊論文

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