Embedding an oceanic mixed layer model into an ocean general circulation model of the East Sea (Japan Sea)

The oceanic mixed layer model (OMLM) is coupled with the ocean general circulation model (OGCM) of the East Sea, where the Mellor-Yamada Model is used for the OMLM. The coupled model is used to investigate the impact and the possible improvement achieved by the OMLM with the particular interest in the realization of the SST. The OMLM is found to prevent continuous warming of deep water and to improve convective mixing during the cooling season. On the other hand, the insufficient mixing near the surface, prescribed in the Mellor-Yamada Model, causes the overestimation of the SST during the warming season. It is shown that the problem can be resolved by correcting the surface boundary condition of turbulence. It is also shown that the circulation is not significantly affected by the embedding of the OMLM in the East Sea.