Importance of Air-Sea Coupling in Simulating Tropical Cyclone Intensity at Landfall  

作　　者：Charlie C.F.LOK Johnny C.L.CHAN Ralf TOUMI 

机构地区：[1]School of Energy and Environment,City University of Hong Kong,Hong Kong,China [2]Department of Physics,Imperial College,London SW72AZ,UK

出　　处：《Advances in Atmospheric Sciences》2022年第10期1777-1786,共10页大气科学进展（英文版）

基　　金：supported by Hong Kong Research Grants Council Grant CityU E-CityU101/16;supported by the Natural Environment Research Council/UKRI(Grant No.NE/V017756/1).

摘　　要：An atmosphere-only model system for making seasonal prediction and projecting future intensities of landfalling tropical cyclones(TCs)along the South China coast is upgraded by including ocean and wave models.A total of 642 TCs have been re-simulated using the new system to produce a climatology of TC intensity in the South China Sea.Detailed comparisons of the simulations from the atmosphere-only and the fully coupled systems reveal that the inclusion of the additional ocean and wave models enable differential sea surface temperature responses to various TC characteristics such as translational speed and size.In particular,interaction with the ocean does not necessarily imply a weakening of the TC,with the coastal bathymetry possibly playing a role in causing a near-shore intensification of the TC.These results suggest that to simulate the evolution of TC structure more accurately,it is essential to use an air-sea coupled model instead of an atmosphere-only model.

关 键 词：tropical cyclone intensity tropical cyclone landfall seasonal prediction air-sea coupling 

分 类 号：P444[天文地球—大气科学及气象学]