【摘要】 本模式以国家或区域中心提供的大范围预报场为基础,使用较小型计算机作小范围较高精度的接力预报.它的特点是将原始方程分解成平流和适应两个过程,时间积分采用显式,即分裂显式积分格式.空间差分采用样条格式,水平网格分粗细两种,细网格随台风移动,初始场由中心台预报值不断提供更新。实际计算表明,此模式具有省时间、省费用、精度较高的优点,并便于实际业务使用.更多还原

【Abstract】 Based on large-scale numerical forecast, the model can provide more accurate forecasting with smaller computers. The primitive equations in this model are divided into two parts:advective process and adjustment process. The splitexplicit integrating scheme is used in time integration. The spline function is employed in space finite difference. There are two kinds of horizontal grid spacing. coarse mesh and fine mesh, the fine mesh can be moved with typhoon. Initial field comes from large scale forecasting provided by national or regional meteorological center. The results show that this model is efficient, more accurate, and more economical. It is suitable for the use in operational forecasting.更多还原