一个人造台风方案及其在移动套网格模式中的应用

A BOGUS TYPHOON SCHEME AND ITS APPLICATION TO A MOVABLE NESTED MESH MODEL

发展了一个用于台风路径预报的初始场人造台风方案．该方案除包含对称台风环流外，也考虑了非对称凤的作用．使用双向移动套网格模式作的试验预报结果表明，初始场中引入人造台风后能明显提高路径预报的水平．

A bogus typhoon initialization scheme deigned for typhoon trace prediction is developed in thes paper. In addition to a symmetric typhoon circulation, an asymmetric wind effect is also included in the scheme. By using a two-way interactive movable nested mesh model, experimental forecasts are performed. It is found that introducing the bogus typhoon into initialization can evidently enhance the track forecast skill.