Seasonal Simulations of a Coupled Ice-ocean Model in the Bohai Sea and North Yellow Sea since the Winter of 1997/1998

摘要

A fine-resolution coupled ice-ocean model configured for the BohaiSea and North Yellow Sea is presented. A horizontal grid spacing of3.7km×2.8km was used in this coupled model. Seasonal simulationswere made from the winters of 1997/1998 to 2008/2009. By comparingof the simulation results and the remote sensing images, the ice-oceancoupled model reasonably reproduces the seasonal variations of the seaice conditions in the Bohai Sea and North Yellow Sea. The predictedice-freezing date, ice-ending date and ice periods are in fairly goodagreement with observations, and some are even identical tomeasurements. Moreover, the simulation of maximum sea ice extentdate matches well. Normally, the sea ice thickness of the west part inLiaodong bay is less than that of the east part, which can be reproducedwell by the ice-ocean coupled model. However, during the meltingperiod, simulated sea ice melts much faster than observations, and themodel loses accuracy in simulation of specific ice thickness distribution.