The effect of fluctuations of the Ob and Yenisei rivers runoff on the area of the Kara Sea ice cover

The paper considers the dependence of changes in the area of ice in the Kara Sea with fluctuations of the Ob and Yenisei rivers runoff during the period from 1978 to 2022. Over the period from 2004 to 2022, statistically significant positive correlations between the summary runoff of the Ob and Yenisei and the area of ice in the Kara Sea were found. There was an acceleration of ice formation processes, an elongation of the ice stabilization period, the beginning of ice melting in a later date and a higher resistance of ice to destruction during summer in the high-water content years of the Ob and Yenisei rivers.