辽宁两次极端雨转暴雪过程对比分析

徐庆喆, 徐爽, 金巍, 田璐, 高清源, 谭政华, 孙安妮

Comparative analysis of two extreme rain to snowstorm processes in Liaoning

XU Qingzhe, XU Shuang, JIN Wei, TIAN Lu, GAO Qingyuan, TAN Zhenghua, SUN Anni

图2 2021年11月7日20:00（a、b）与2023年11月5日20:00（d、e）300 hPa正涡度平流（填色，单位：10-9 s-2）、500 hPa高度场（实线，单位：dagpm）及地面气旋中心位置（黑色圆点）（a、d）、300 hPa急流（等值线，风速≥30 m?s-1）、850 hPa急流（风矢，风速≥12 m?s-1）、850 hPa温度平流（填色，单位：10-5 K?s-1）（b、e）及过程Ⅰ（c）与过程Ⅱ（f）气旋中心气压值（黑色数字，单位：hPa）及移动路径（黑色圆点）

Fig.2 The 300 hPa positive vorticity advection (the color shaded, Unit: 10-9 s-2), 500 hPa height field (solid lines, Unit: dagpm) and the center position of the surface cyclone (black dots) (a, d), the 300 hPa jet stream (isolines, wind speed greater than or equal to 30 m?s-1), 850 hPa jet stream (wind vector, wind speed greater than or equal to 12 m?s-1), 850 hPa temperature advection (the color shaded, Unit: 10-5 K?s-1) (b, e) at 20:00 on 7 November 2021 (a, b) and 5 November 2023 (d, e) and cyclone center pressure values (black font, Unit: hPa) and movement paths (black dots) during the process I (c) and the process II (f)