Study on the calibration of wave field simulation in the China adjacent sea based on SWAN model
Based on the observations originated from satellites and archived in IFREMER,the sensitivi-ty analysis and adaptive modification were conducted on the wind input source term,dissipation caused by white-capping and bottom friction and their parameters of SWAN model with unstructured mesh grid in the China adjacent sea.The applicability of the modified model was validated by performing 25 years numerical simulation.Results indicated that the reanalysis wind speed data from NCEP were con-sistent with observations in China sea and could be used as the wind forcing for wave simulation.The Komen pattern with the coefficient of 1.86 X 10-5 for both the wind input source term and the dissipation caused by white-capping was considered as the optimal parameter combination for this sea area.As for calculating the dissipation due to the bottom friction,COLLINS model with default parameter was the most suitable.And the calibrated SWAN model was stable and could simulate the significant wave height more accurately in the China adjacent sea.
China adjacent seaNCEPIFREMERSWANmodel modificationsignificant wave height
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