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8 2021年8月7日20:00 θse(填色,单位:K)、相对湿度(红色等值线,单位:%)及纬向风-垂直速度合成(箭矢,单位:m·s-1)沿31°N的经度-高度剖面(a),650 hPa正涡度平流(填色,单位:10-8 s-2)及风场(风矢,单位:m·s-1)(b)
(纬向风-垂直速度合成中垂直速度扩大了50倍)
Fig.8 The longitude-height section of θse (the color shaded, Unit: K), relative humidity (red isolines, Unit: %) and synthesis of zonal wind-vertical velocity (arrows, Unit: m·s-1) along 31°N (a), 650 hPa positive vorticity advection (the color shaded, Unit: 10-8 s-2) and wind field (wind vectors, Unit: m·s-1) (b) at 20:00 on 7 August 2021
(The vertical velocity is magnified by 50 times in the zonal wind-vertical velocity synthesis)