本文采用含有摩擦力项的台风梯度风方程,其离心力项中曲率半径的计算考虑了台风移动的因素,由此得到的台风风场模式,其梯度风摩擦修正系数c和风向内偏角β都是变化的。c一般从台风外围的0.6以下向台风中心方向递增,到台风眼壁附近其值接近1.0;β由外围的35°左右向台风中心方向递减,到眼壁附近减为5°以下,这比以往所用模式都有明显的改进。 In this paper, the typhoon gradient wind equation with friction term is used. The calculation of the radius of curvature in the term of centrifugal force takes the typhoon movement into account. The typhoon wind field model, the gradient wind friction correction coefficient c and the wind direction internal deflection angle β are both It is changing. Generally, the value of c increases from the bottom of the typhoon to the center of the typhoon. The value is close to 1.0 near the typhoon eye wall. β decreases from the outer 35 ° to the center of the typhoon and decreases to below 5 ° near the eye wall, The model used has obvious improvement.