Effect from polynyas in the Siberian Arctic seas to atmospheric transport of heat and moisture

Coastal and fast ice polynyas in the Arctic seas can have a noticeable effect on the Arctic climate, increasing the temperature of the cold air which coming from continental Siberia in winter to these seas and in the Arctic basin [1-2]. In this paper, were studied the effect of polynyas on surface air temperature and on the meridional heat and moisture transfers according to expeditionary observations and ERA-Interim reanalysis. According to the results of expeditionary observations carried out in the 1990s, estimates of heat inflows from the surface of the polynya were calculated. From reanalysis, meridional heat transfers were obtained through 70 degrees N, air temperature profiles, wind speed in the region of the Laptev Sea (100 - 140 degrees E.), and polynya which located in the Laptev Sea (120 - 130 degrees E). It was confirmed that winter transfers of cold air from the mainland do not have a cooling effect on the average winter air temperature north of 70 degrees N due to the heating effect of polynya.