In this paper, by the statistical analysis of the path, source and moving velocity-of the cold air, blocking high on the north of Baikal and Yakutsk was shown to be the main system of influence.

• 本文从统计低温多雨的冷空气路径、源地和移速入手,找出主要影响系统为贝加尔湖北部及雅库茨克的阻塞高压。