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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6. 2024年11月26日14:00 850 hPa(蓝色箭矢)、925 hPa(黑色箭矢)风场(a,单位:m·s-1,仅显示风速≥16 m·s-1)及降水中心区域26日02:00—27日02:00平均风速随高度的变化(b)
(棕色方框为降水中心区域,棕色垂线为低空急流阈值)

Fig.6. The wind field (a, Unit: m·s-1; only show the wind speed greater than or equal to 16 m·s-1) of 850 hPa (blue arrows) and 925 hPa (black arrows) at 14:00 on 26 and vertical variation of the mean wind speed over the precipitation center region from 02:00 on 26 to 02:00 on 27 (b) November 2024
(The brown box denotes the precipitation center region, the brown vertical line indicates the low-level jet threshold)