The results show that the large circulation background which influenced this continuous rain process was the high ridge near the Ural Mountain and the continually deepening trough near the Balkhash Lake;

• 结果表明:影响这次连阴雨过程的大环流背景是乌拉尔山附近存在一高压脊,同时在巴尔喀什湖附近存在一不断加深的槽;