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学科主题: Meteorology & Atmospheric Sciences
题名: The Effect of Typhoon-Induced SST Cooling on Typhoon Intensity: The Case of Typhoon Chanchu (2006)
作者: Jiang, XP ; Zhong, Z ; Liu, CX
通讯作者: zhongzhong@jsmail.com.cn
关键词: coupled model ; air-sea interaction ; typhoon intensity ; SST cooling
刊名: ADVANCES IN ATMOSPHERIC SCIENCES
发表日期: 2008
卷: 25, 期:6, 页:1062-1072
收录类别: sci
部门归属: [Jiang Xiaoping; Zhong Zhong] PLA Univ Sci & Technol, Inst Meteorol, Nanjing 211101, Peoples R China; [Jiang Xiaoping; Liu Chunxia] China Meteorol Adm, Guangzhou Inst Trop & Marine Meteorol, Guangzhou 510080, Guangdong, Peoples R China; [Liu Chunxia] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China
项目归属: LED
摘要: In order to investigate air-sea interactions during the life cycle of typhoons and the quantificational effects of typhoon-induced SST cooling on typhoon intensity, a mesoscale coupled air-sea model is developed based on the non-hydrostatic mesoscale model MM5 and the regional ocean model POM, which is used to simulate the life cycle of Typhoon Chanchu (2006) from a tropical depression to a typhoon followed by a steady weakening. The results show that improved intensity prediction is achieved after considering typhoon-induced SST cooling; the trend of the typhoon intensity change simulated by the coupled model is consistent with observations. The weakening stage of Typhoon Chanchu from 1200 UTC 15 May to 1800 UTC 16 May can be well reproduced, and it is the typhoon-induced SST cooling that makes Chanchu weaken during this period. Analysis reveals that the typhoon-induced SST cooling reduces the sensible and latent heat fluxes from the ocean to the typhoon's vortex, especially in the inner-core region. In this study, the average total heat flux in the inner-core region of the typhoon decrease by 57.2%, whereas typhoon intensity weakens by 46%. It is shown that incorporation of the typhoon-induced cooling, with an average value 2.17 degrees C, causes a 46-hPa weakening of the typhoon, which is about 20 hPa per 1 degrees C change in SST.
原文出处: 查看原文
WOS记录号: WOS:000261052100015
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5933
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Jiang, XP; Zhong, Z; Liu, CX.The Effect of Typhoon-Induced SST Cooling on Typhoon Intensity: The Case of Typhoon Chanchu (2006),ADVANCES IN ATMOSPHERIC SCIENCES,2008,25(6):1062-1072
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