Applicability Analysis of Gradient Wind Field Model

The typhoon wind field model is an important part of the typhoon risk methods. And the accuracy of typhoon wind field model is one of the key factors influencing typhoon risk assessment. In this paper, the applicability of different gradient wind field models are analyzed. At first, the reasonability of gradient wind field model is brief discussed. Then different gradient wind field models are used to calculate two typhoons. By comparing with the measured wind speed, several kinds of gradient wind field models show better simulation results. The comparison indicates that Holland gradient wind field model matches well with the measurements and has better applicability than other models.