2022年7月内蒙古干旱半干旱区涝—旱转折事件的成因分析

刘炜, 赵艳丽, 高晶, 李林惠, 王慧敏

Cause analysis of flood-drought alternation event in July 2022 in arid and semi-arid region of Inner Mongolia

LIU Wei, ZHAO Yanli, GAO Jing, LI Linhui, WANG Huimin

图4 2022年7月1—11日500 hPa位势高度场（等值线）及其距平场（彩色阴影）（a，单位：dagpm），850 hPa风场距平（b，单位：m·s-1）、对流层整层积分水汽通量（矢量，单位：kg·m-1·s-1）及其散度（阴影区，单位：10-5 kg·m-2·s-1）距平（c），东亚地区200 hPa纬向风场（等值线）及其距平（彩色阴影）（d，单位：m·s-1） （红色实线为586、588 dagpm等值线的气候平均态，绿色粗虚线为西风急流轴位置。下同）

Fig.4 The 500 hPa geopotential height field (contours) and its anomalies field (color shaded) (a, Unit: dagpm), 850 hPa wind field anomalies (b, Unit: m·s-1), integral water vapor flux over the whole troposphere (vectors, Unit: kg·m-1·s-1) and its divergence (color shaded, Unit: 10-5 kg·m-2·s-1) anomaly field (c), 200 hPa zonal wind field (contours) and its anomalies (color shaded) in East Asia area (d, Unit: m·s-1) from 1 to 11 July 2022 (the red solid lines for climatological mean line of 586 and 588 dagpm, the green thick dashed line for the location of westerly jet axis. the same as below)