October snow cover and winter atmospheric conditions in Siberia

Abstract

Abstract In this study, the relationship between autumn Siberian snow cover and atmospheric conditions of the following winter is evaluated in time and space. NOAA observational data, NCEP2, and ERA-Interim reanalysis data, and results of a climate model INMCM4 are used. The study is carried out for a territory of Western Siberia of 55° – 74° N and 60° – 90° E. The results obtained show that the relationship does not have a constant manifestation in time. It is hypothesized that the abnormal amount of snow in autumn in Siberia and the anomalies of meteorological parameters in the following winter are initiated by some third process which occurred earlier, possibly at the beginning of autumn or at the end of summer.