Abstract
A regional response to global climate warming is a spatio-temporal change in the humidification regime. This study presents an analysis of changes in the precipitation regime during the cold period conducted for the Republic of Bashkortostan with the use of proven statistical methods. To identify climatic changes in the precipitation regime, different periods were considered: the main one (1966-2020) and the periods recommended by the WMO. Statistical characteristics of precipitation of the cold period are analyzed taking into account the physical and geographical features of the Republic; correlations between precipitation anomalies and atmospheric circulation indices have been found; the distribution of the number of heavy snowfall cases has been obtained. The study revealed that the precipitation of the cold period tended to increase in 1966-2020. A significant increase was found in March. The closest positive relationships were revealed between the amount of precipitation and the Atlantic multidecadal oscillation index, negative relationships were established with the Scandinavian oscillation index. An analysis of heavy snowfall cases showed that there are more of them formed in the Southern Urals.
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