山西极端暴雨环流特征及水汽异常研究

周晋红, 王秀明, 田晓婷, 张泽秀, 李树文, 蔡晓芳

Study on circulation characteristics and water vapor anomaly of extreme rainstorm events in Shanxi Province

ZHOU Jinhong, WANG Xiuming, TIAN Xiaoting, ZHANG Zexiu, LI Shuwen, CAI Xiaofang

图4 西风带低槽（涡）与台风相互作用型极端暴雨发生期间环流合成场（黑色实线为500 hPa平均位势高度，单位：dagpm；箭矢和彩色填色分别为700 hPa平均风场和风速，单位：m·s-1）（a），1992年8月31日08：00 500 hPa位势高度（黑色实线，单位：dagpm）、700 hPa风场（箭矢）和风速（彩色填色，单位：m·s-1）（b），1992年8月30日20：00—31日20：00山西省降水量（单位：mm）空间分布（c）

Fig.4 Circulation composite field during the extreme rainstorms of interaction pattern between westerly low trough (vortex) and typhoon (black solid lines represent average geopotential height on 500 hPa, Unit: dagpm; arrow vectors and color shaded represent 700 hPa average wind field and wind speed, respectively, Unit: m·s-1) (a), 500 hPa geopotential height field (black solid lines, Unit: dagpm), 700 hPa wind field (arrow vectors) and wind speed (color shaded) (Unit: m·s-1) at 08:00 on 31 August 1992 (b), the spatial distribution of precipitation (Unit: mm) in Shanxi Province from 20:00 on 30 to 20:00 on 31 August 1992 (c)