Numerical Simulation Of Ocean Wave In The East China Sea And Statistical Analysis Of Wave Climate

Ocean wave is an important factor to induce disasters, so it occupies a consequence in oceanographic research fields. Numerical simulation is an important way to study the mechanisms of the generation, spread and development about ocean waves, and it is also an important tool for forecasting and analyzing waves. Nowadays the technique of ocean waves numerical simulation has developed very well. In this paper, the wave model WAVEWATCH III is applied to simulate the waves in the East China Sea. For the simulation of the wave fields of the East China Sea, analyzed wind data of NCEP and QSCAT/NCEP blended wind data (July 1999 later,with higher precision than the former) are used respectively in the calculation as input wind stress. The former computed results are checked up by the observations from a buoy in the East China Sea and the No.6 platform in the Bohai Sea(May 1998), while the comparison shows that the simulation is not good, especially in the Bohai Sea. Consequently, the wind data of NCEP are not fit for the computation. The computed results by the blended wind data are checked up by the same observations, and in addition, the observations from Topex/Poseidon satellite are also used for the comparison. This time, the results are satisfying. Wave field over 5 years is simulated by this model adopting QSCAT/NECP blend wind data in the East China Sea, the statistical analysis of wave climate is carried out, and meaningful results are presented. This study indicates that it is, as things are, feasible to set up a proper numerical wave model in the East China Sea and lay a model foundation for us to study the wave climate and the coupled sea and air in the East China Sea.