Possible Location of the Polar Front over the Eastern European Plain in the Middle of the 21 Century

The location of the polar front and its possible change in European Russia during a summer season in the middle of the 21 century is investigated based on the results of climate modeling on a regional climate model of Main Geophysical Observatory. The simplest method to identify the location of the polar front on the map using the areas of high temperature gradients is examined. The polar front orientation will become more meridional according to model data in comparison with climatological polar front identifi ed by Khromov in the 20 century. The stability of the polar front during the various climatological periods is revealed. It is possible to expect a shift of the area of largest temperature gradients to the south in the middle of the 21 century on one degree of latitude compared with the last decade of the 20 century