Responses of thermal structure and vertical dynamic structure of South China Sea to Typhoon Chanchu

Yi Zhan Chen, Jie Min Zhan, Ying Ying Luo, Wing Hong Onyx Wai, Ling Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)458-466
Number of pages9
JournalJournal of Hydrodynamics
Volume26
Issue number3
DOIs
Publication statusPublished - 1 Jul 2014

Keywords

  • Mesoscale Model 5 (MM5)
  • princeton ocean model (POM)
  • South China Sea (SCS)
  • typhoon thermal structure
  • vertical dynamic structure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials
  • Modelling and Simulation

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