四川盆地一次极端暴雨过程的演变及成因分析
李梦, 竹利, 张悦含

Evolution and cause analysis of an extreme rainstorm process in the Sichuan Basin
LI Meng, ZHU Li, ZHANG Yuehan
图9 2021年8月7日20:00(a),23:00(b)及8日01:00(c)四川盆地东北部地面气温(彩色圆点,单位:℃)、地面风场(风矢,单位:m·s-1)及1 000 hPa散度场(红色等值线,单位:10-5 s-1
(蓝色圆圈为地面辐合区所在位置,棕色虚线箭头指示地面风场方向)
Fig.9 The surface air temperature (color dots, Unit: ℃), surface wind field (wind vectors, Unit: m·s-1) and 1 000 hPa divergence field (red isolines, Unit: 10-5 s-1) at 20:00 (a), 23:00 (b) on 7 and 01:00 on 8 (c) August 2021 in the northeastern region of the Sichuan Basin
(The blue circle is the location of the ground convergence area, brown dotted arrows indicates the direction of the surface wind field)