Decadal variation of different durations of continuous Meiyu precipitation and the possible cause

The features of the decadal evolution of different durations of continuous Meiyu precipitation and their possible cause from the viewpoint of the low-level intraseasonal oscillation(ISO) are examined in this study. It is found that the total frequency of Meiyu precipitation events of certain duration gradually decreases as the duration of the events increases,and the main center of the events moves from the northern Yangtze-Huaihe River Valley(YHRV) to the southern YHRV. The linear trends of different durat...