Importance of pre-existing oceanic conditions to upper ocean response induced by Super Typhoon Hai-Tang

Zhe Wen Zheng*, Chung Ro Ho, Nan Jung Kuo

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

64 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
文章編號L20603
期刊Geophysical Research Letters
35
發行號20
DOIs
出版狀態已發佈 - 2008 10月 28
對外發佈

ASJC Scopus subject areas

  • 地球物理
  • 地球與行星科學(全部)

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