海河流域夏季降水关键区季内演变及其环流配置的定量化分析

何丽烨, 程善俊, 马宁, 郭军

Intraseasonal evolution of the key areas of precipitation in the Haihe River Basin and quantitative analysis of its associated atmospheric circulation during summer

HE Liye, CHENG Shanjun, MA Ning, GUO Jun

图5 500 hPa位势高度场和850 hPa水平风场、整层水汽输送及其散度在海河流域夏季各月关键区降水偏多和偏少年的合成差异 注：图a阴影和矢量分别表示高度场和风场的置信度水平达到95%;图b阴影表示水汽通量散度的置信度水平达到95%,浅色表示水汽辐合,深色表示水汽辐散。

Fig. 5 Composite differences in geopotential height at 500 hPa pressure level, 850 hPa winds, and the whole layer vapor transportation and its divergence between wet and dry years chosen by each summer month in the key areas of the Haihe River Basin