A Numerical Simulation Study on Ocean Wave Effect and the Sensitivity of a Regional Atmosphere-Ocean Coupled Model

The ocean wave effect on the air-sea interaction is studied by numerical simulation tests and the sensitivity of a regional atmosphere-ocean coupled model to sea surface roughness parameterizations is also discussed in this paper. The results show that ocean waves influence the sea surface roughness. By considering the dependent relationship between sea surface roughness and wave age, the effect of ocean waves on air-sea interaction under high wind condition is significant and can not be ignored. The regional atmosphere-ocean coupled model shows good capability in simulating the typhoon processes which improves the simulation results of typhoon track and intensity. The coupled model is sensitive to sea surface roughness parameterizations. In these tests, the coupled model using the parameterizations of Smith and Liu gave better results. This study is helpful to make more reasonable parameterizations of the physical process of air-sea interaction and improve the regional atmosphere-ocean coupled models.