Responses of thermal structure and vertical dynamic structure of South China Sea to Typhoon Chanchu
The response of the South China Sea (SCS) to Typhoon Chanchu (2006) was examined using the MM5 and POM model. In the POM model, sea surface boundary conditions were forced by the simulation wind field from MM5, the velocity forcing was introduced in the eastern boundary and the computational schemes...
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Published in | Journal of hydrodynamics. Series B Vol. 26; no. 3; pp. 458 - 466 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Singapore
Elsevier Ltd
01.07.2014
Springer Singapore |
Subjects | |
Online Access | Get full text |
ISSN | 1001-6058 1878-0342 |
DOI | 10.1016/S1001-6058(14)60052-4 |
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Summary: | The response of the South China Sea (SCS) to Typhoon Chanchu (2006) was examined using the MM5 and POM model. In the POM model, sea surface boundary conditions were forced by the simulation wind field from MM5, the velocity forcing was introduced in the eastern boundary and the computational schemes of heat fluxes at the surface were introduced. Comparison with the observation data shows that the simulated results are reliable. In the response process of the SCS to Typhoon Chanchu, the influence of the heat fluxes on thermal structure of the SCS was regionally different. Strong wind forcing would lead to upwelling phenomenon in the lateral boundary of deep water basin. Furthermore, the Ekman pumping theory was used to discuss subsurface upwelling and downwelling phenomenon in typhoon forced stage. |
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Bibliography: | 31-1563/T The response of the South China Sea(SCS) to Typhoon Chanchu(2006) was examined using the MM5 and POM model. In the POM model, sea surface boundary conditions were forced by the simulation wind field from MM5, the velocity forcing was introduced in the eastern boundary and the computational schemes of heat fluxes at the surface were introduced. Comparison with the observation data shows that the simulated results are reliable. In the response process of the SCS to Typhoon Chanchu, the influence of the heat fluxes on thermal structure of the SCS was regionally different. Strong wind forcing would lead to upwelling phenomenon in the lateral boundary of deep water basin. Furthermore, the Ekman pumping theory was used to discuss subsurface upwelling and downwelling phenomenon in typhoon forced stage. CHEN Yi-zhan , ZHAN Jie-min , LUO Ying-ying, WAI Onyx W. H.,TANG Ling (1.Department of Applied Mechanics and Engineering, Sun Yat-sen University, Guangzhou 510275, China; 2.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China) South China Sea(SCS),typhoon,thermal structure,vertical dynamic structure,Mesoscale Model 5(MM5),princeton ocean model(POM) ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1001-6058 1878-0342 |
DOI: | 10.1016/S1001-6058(14)60052-4 |