Abstract:
A 2 dimension tide-storm surge coupled numerical model based on finite element method (FETSCM) was established for Fujian coast. The mesh resolution along Fujian coast was 1 km by average with the finest mesh resolution of 500 m. The model was used to simulate the tide and storm surge. Comparing to the records at 6 tidal gauges along Fujian coast, the mean absolute error of tide simulation is 22 cm; the root mean square error of storm surge is 24 cm; the absolute error of max water level of tide and storm surge coupled water level was 20 cm. The results indicated that this tide-storm surge coupled model is useful for the storm disaster warning of Fujian coast.