WANG Zhi-li

（State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering，Nanjing Hydraulic Research Institute，Nanjing 210024，China）

In this paper，the two parametric tropical cyclone models for storm surge modeling are further developed.The analytical expressions of tangential and radial velocity distribution are derived from the governing momentum equations，based on the general symmetric pressure distribution proposed by Holland and Fujita.On the basis of the data of several tropical cyclones that occurred in East China Ocean，the shape parameter in pressure model is estimated.Finally，the Fred cyclone（ typhoon 199417）is calculated，and comparisons of measured and calculated air pressures and wind speed are presented.

tropical cyclone；parametric model；storm surge