Author(s): Huiding Wu; Shan Bai; Hai Li; Zhilian Wang; Zhanhai Zhang; Guoqing Li
Linked Author(s):
Keywords: Sea ice forecast; Dynamic-thermodynamic ice model; Coupled ice-ocean model
Abstract: Exploratory drilling and planning for production and transportation for oil and gas in the Bohai Sea during winter have raised great demand for numerical forecast of sea ice. A dynamic-thermodynamic ice model with three levels, level ice, rubble and open water, for simulating the ice growth, decay and drift in the Bohai Sea is presented on the basis of a review of the climate and ice conditions in the Bohai Sea and earlier sea ice modelling studies (like as Hibler 1979). The ice model was coupled with a tidal current model for research on ice-tide interaction, and coupled with Blumberg-Mellor Ocean model for improving numerical sea ice forecast. In order to develop an operational numerical ice prediction system for the Bohai Sea, the ice model is linked to a 5-level primitive equation atmospheric model with an atmospheric boundary layer model, and the products of numerical weather prediction from JMA and the outputs of T I 06 atmospheric model from NMC of China are also used in the prediction system. The system includes input of initial ice fields besides the above models. Initial ice thickness and compactness are obtained from composite analyses and ice velosity is got by initialization. An objective verification procedure, application of forecast outputs and service are one of important parts of the operational system. The ice models is described and the operational forecast system is outlined in this paper.
Year: 1998