NUMERICAL SEA ICE FORECAST FOR THE BOHAI SEA

A dynamic-thermodynamic ice model with three levels for simulation the ice growth, decay and driftin the Bohai Sea is presented on the basis of review of the climate and ice conditions in the Bohai Sea and the existing seaice models, This model was linked to a numerical weather prediction model with anat mospheric boundary layer model and tidal current model for forecasting ice conditions in the Bohai Sea and the northern Yellow Sea during the winters from 1990 to 1996 at National Research Center for Marine Environmental Forecasts. The numerical seaice forecasting products, suchas fields of ice thickness, compact ness and velocity, ice edge, parameter so fice ridge and localest imate of ice thickness and tracks of ice floes near drilling plat forms were produced and sent to the National Marine Forecasting Station, and the Bohai Oil Corporation and other users. Statistical verification has been used for making objective assassment of the model and the forecast system. this paper out lines the climate and ice conditions in the Bohai Sea, application of satellite imagery, ice model and its forecastiong results and verification.