渤海海冰漂移模型

An Ice Drifting Model for the Bohai Sea

本文提出了一个适用于渤海中等尺度海冰的动力学模型。该模型在计算冰内力项时,对高密集度的连续冰盖采用粘性—塑性本构关系;对于中、低密集度的边缘冰带则采用基于浮冰块碰撞原理的碰撞本构关系。观测结果表明,数值预报结果基本上反映了该海域流冰的漂移性质。如果给以合适的初始条件和大气及海洋对冰的作用力,该模型可用作渤海的短期海冰预报模型。

A mesoscale ice dynamics model for the Bohai sea is presented. The model uses a viscous-plastic constitutive relation to determine the internal ice force in continuous ice cover and a constitutive relation based on ice floe collision to calculate the internal ice force in other area. Forecasting results are good to show the evaluation of ice conditions. Giving the exact initial conditions and the atmospheric and oceanic forcings, this model can be used as a short-term sea ice forecasting model in Boai Sea.