Validation and sensitivity experiments comparing the physical parameterization of numerical wave model

摘要

The Korean Peninsula is surrounded by the sea on three sides except for the northern part, In order to simulate sea state, Korea Meteorological Administration (KMA) has been operating WAVEWATCHIII (WW3) since 2008, which is numerical wave model it was constructed in operational wave forecasting system. Recently, new version of WW3, version 4.18, was officially released and construction of new operational wave forecasting system is performed for upgrading the previous system that is version 2.22. Therefore, the objective of this study is to conduct a comparison of energy input and dissipation source term of WAM4 for comparison and verification of WAM4 with Tolman and Chalikov (TCL) option. In conclusion, the more bias was decrease as wind-wave energy growth term increase. And the more bias was decrease as the more wind-wave energy growth term was increase. The verification results of physical option during two seasons shown negative bias both option WAM4 and TCL. The negative bias was improved in winter, but summer season was shown an opposite result. Also, forecasting performance was better result in summer, but performance was deteriorated after 36 forecast hour.