ИСТИНА

The study of swell waves distribution from the North Atlantic to the Barents and White seas was made by using SWAN wave model. We get wind fields data from reanalysis NCEP/CFSR (resolution 0.2°, time step 1 hour). We use special unstructured computing mesh which include the North Atlantic region from equator to pole with spatial resolution around 1° and the Barents and White Seas with resolution around 0.2°. The main idea of model experiment is limitation of wind forcing above the Barents and White seas. It is real wind in North Atlantic and no local wind in the Barents sea. The limitation of forcing is way to assess directly swell influence. We calculate several cases of storms in the North Atlantic and assess the swell influence. Model ouput data abou swell height we get in several points in North Atlantic and in the Barents and White seas. It is shown that the swell influence is not strong for the white sea, but for the Barents sea it is 1-2 m. Incoming swell from north Atlantic make hard to use local wave models with open boudary for the Barents sea. The nesting grids or big unstructured mesh must be used in this cases.