Impact of Ice Data Quality and Treatment on Wave Hindcast Statistics in Seasonally Ice-Covered Seas

The seasonal ice cover has significant effect on the wave climate of the Baltic Sea. We used the third-generation wave model WAM to simulate the Baltic Sea wave field during four ice seasons (2009†-2012). We used data from two different sources: daily ice charts compiled by FMI’s Ice Service and modeled daily mean ice concentration from SMHI’s NEMO†Nordic model. We utilized two different methods: a fixed threshold of 30 % ice concentration,...