Fig. 7
a Regression of detrended precipitation and other components of moisture budget onto the detrended SPEI-3 over SE China (unit: mm day−1). b Longitude–altitude section of vertical velocity (unit:10–2 Pa s−1) averaged between 21 and 29 °N, in which the significant values exceeding the 0.1 and 0.05 significance levels are marked by gray and black dots, respectively