首页|期刊导航|大气和海洋科学快报（英文版）|Mechanistic study of a downhill merging and enhancement of convection in Beijing
大气和海洋科学快报（英文版）2025，Vol.18Issue(6)：1-8,8.DOI:10.1016/j.aosl.2025.100595
Mechanistic study of a downhill merging and enhancement of convection in Beijing
Mechanistic study of a downhill merging and enhancement of convection in Beijing
摘要
Abstract
以往针对北京平原雷暴群和下山雷暴群合并过程的研究相对较少,利用WRF模拟数据对2021年8月23日一次此类对流活动过程分析发现:(1)雷暴群前侧风场和热力条件的差异,使得山区雷暴群移动和冷池发展受阻,而平原雷暴群则相反,最终在山脚处合并,增强后的冷池起到类似地形作用,增强辐合和上升运动;(2)合并前,山区雷暴群低层负热力浮力抑制上升运动发展,平原雷暴群低层正扰动垂直气压梯度力加速上升运动,合并后,正扰动垂直气压梯度力(2 km以下)和正热力浮力(2 km以上)共同驱动上升运动发展.本文主要对冷池和垂直运动分析,以期为北京地区的临近预报提供一些有用的科学参考.关键词
雷暴下山/热浮力/合并Key words
Downhill thunderstorms/Thermal buoyancy/Cell merging引用本文复制引用
Xinyu Zhao,Lingkun Ran,Shunwu Zhou,Xinyong Shen,Mingxuan Chen,Yanli Chu..Mechanistic study of a downhill merging and enhancement of convection in Beijing[J].大气和海洋科学快报（英文版）,2025,18(6):1-8,8.基金项目
This research was funded by the Beijing Municipal Science and Technology Commission[grant number Z221100005222012],the De-partment of Science and Technology of Hebei Province[grant num-ber 22375404D]and the National Natural Science Foundation of China[grant numbers U2233218 and 42275010],supported by the Strategic Priority Research Program of the Chinese Academy of Sciences[grant number XDB0760300]. （）
