模拟启动时间和双台风对“21.7”河南极端暴雨事件的影响研究

张心怡, 张熠, 刘昊炎, 王其伟, 王迪

Study on the impacts of simulation start time and binary typhoons on the "21.7" Henan extreme rainfall event

Xinyi Zhang, Yi Zhang, Haoyan Liu, Qiwei Wang, Di Wang

图5 2021年7月20日00时至21日00时24 h平均的950 hPa散度场(填色，单位：10-5 s-1)、200 hPa散度场(等值线，从4×10-5 s-1起始，每2×10-5 s-1递减)、24 h累积降水量超过200 mm的位置(点), (a)中风羽矢为CTL1900的950 hPa水平风场(全长对应4 m·s-1)，(b~e)中风羽矢为CTL1900与各敏感试验950 hPa水平风场的差异

Fig.5 24 h?averaged 950 hPa divergence field (shaded, unit: 10?? s?1), 200 hPa divergence field (contours starting at 4×10?? s?1 with intervals of 2×10?? s?1 decreasing), locations where 24 h accumulated precipitation over 200 mm (dots) from 00：00 UTC 20 July to 00：00 UTC 21 July 2021; The wind barbs in (a) represent the horizontal wind fields at 950 hPa for CTL1900 (full bar corresponds to 4 m·s-1), while the wind barbs in (b~e) represent the differences in the 950 hPa horizontal wind field between CTL1900 and each sensitivity experiment