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 inJournal of hydrodynamics. Series B Vol. 26; no. 3; pp. 458 - 466
Main Author 陈宜展 詹杰民 罗莹莹 韦永康 唐灵
Format Journal Article
LanguageEnglish
Published Singapore Elsevier Ltd 01.07.2014
Springer Singapore
Subjects
Acetal resins
Boundaries
China
Computational fluid dynamics
Computer simulation
Engineering
Engineering Fluid Dynamics
Fluxes
Hydrology/Water Resources
Mesoscale Model 5 (MM5)
Numerical and Computational Physics
princeton ocean model (POM)
Simulation
South China Sea (SCS)
thermal structure
typhoon
Typhoons
Upwelling
vertical dynamic structure
中国南海
动态结构
南海台风
反应过程
散热结构
珍珠
观测数据
边界条件
ISEW, South China Sea
typhoon
South China Sea (SCS)
thermal structure
Mesoscale Model 5 (MM5)
vertical dynamic structure
princeton ocean model (POM)
Online AccessGet full text
ISSN1001-6058
1878-0342
DOI10.1016/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.
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