WIND WAVE MODELLING OVER THE BALTIC SEA USING WAM MODEL AND THE COUPLED OCEAN CIRCULATION-WAVE POM MODEL

This study presents a setup of the wind wave forecasting model WAM working over the Baltic Sea in operational mode. The work is a part of the PROZA project financed from the Polish Innovative Economy Programme and the European Regional Development Fund. The modelling results are verified against observations recorded with a directional waverider buoy. The results of the validation studies are presented in this paper. The agreement between the modelled and observed wave data obtained was quite a good. The model setup is part of the system allowing for operational decision-making based on atmospheric and sea conditions. In the next stage of the project we are seeking for improvement of the modelling accuracy by taking into account wave-current interactions. To this end a new version of POM with embedded wave sub-model has been implemented. Based on cross-comparisons against observed waverider buoy data and the results obtained with WAM, some adjustments of the parameters controlling the coupled circulation-wave POM were applied. They are presented and discussed in this study.