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一次伴有极端降水的东北冷涡过程分析
任丽1,2(), 卜文惠1, 于震宇1, 白俊杰3, 李瑶4
Analysis of a northeast cold vortex process accompanied by extreme precipitation
REN Li1,2(), BU Wenhui1, YU Zhenyu1, BAI Junjie3, LI Yao4

图2. 2024年11月25日20:00（a）、26日14:00（b）、27日14:00（c）、28日08:00（d）500 hPa位势高度场（黑色等值线，单位：dagpm）、温度场（红色等值线，单位：℃）、温度平流（填色，单位：10-5 K·s-1）、200 hPa水平风场（箭矢，单位：m·s-1；绿色≥50 m·s-1，紫色≥70 m·s-1）、850 hPa水平风场（风向杆，单位：m·s-1，仅显示风速≥16 m·s-1）

Fig.2. The 500 hPa geopotential height field (the black contour lines, Unit: dagpm), temperature field (the red contour lines, Unit: ℃) and temperature advection (the color shaded, Unit: 10-5 K·s-1), 200 hPa horizontal wind field (arrow vectors, Unit: m·s-1; green vector indicates the wind speed greater than or equal to 50 m·s-1 and purple vector indicates wind speed greater than or equal to 70 m·s-1), 850 hPa horizontal wind field (wind barbs, Unit: m·s-1, only show the wind speed greater than or equal to 16 m·s-1) at 20:00 on 25 (a), 14:00 on 26 (b), 14:00 on 27 (c), and 08:00 on 28 November 2024