Анализ влияния Атлантико-Европейских крупномасштабных атмосферных мод на зимние аномалии температуры воздуха приземного слоя в Черноморско-Каспийском регионе

Abstract

The manifestations of the main large-scale atmospheric processes, typical for the Atlantic–European sector, in winter air temperature anomalies in the Black Sea–Caspian region (40–50 °N 28–50 °E) were clarified according to the atmospheric reanalysis NCEP 20CR V2c data at an isobaric surface of 1000 hPa for 1851–2014. After removing the linear trend, the air temperature anomalies in December-January were decomposed into empirical orthogonal functions (EOF). It is shown that the first three leading EOFs describe ~ 96% of the total air temperature variability. The first EOF is a manifestation of the East Atlantic – Western Russia mode. The second EOF is due to the North Atlantic Oscillation. The third EOF corresponds to the Scandinavian pattern.