The change of Meiyu periods is closely related with the frequently postponed phenomena of their ending dates and the later onsets of high summers in the mid-lower Yangtze.

• 此两时段梅雨由弱转强和出梅／入夏期由偏早转为延迟呈密切联系，这在相当程度上反映中国东部夏季气候-水资源分布的突变。