河北“23·7”暴雨云物理特征的飞机观测与数值模拟  

Aircraft Observation and Numerical Simulation of the Physical Characteristics of“23·7”Rainstorm Clouds in Hebei

作　　者：彭敏 王清川 盖胜芬 张健南 侯劭禹 PENG Min;WANG Qingchuan;GE Shengfen;ZHANG Jiannan;HOU Shaoyu(Xiong’an Key Open Laboratory of Atmospheric Boundary Layer of China Meteorological Administration,Baoding 071000,Hebei China;Hebei key Laboratory of Meteorology and Ecological Environment,Shijiazhuang 050021,China;Hebei Weather Modification Center,Shijiazhuang 050021,China;Langfang Meteorological Bureau of Hebei Province,Langfang 065000,Hebei China)

机构地区：[1]中国气象局雄安大气边界层重点开放实验室,河北保定071000 [2]河北省气象与生态环境重点实验室,石家庄050021 [3]河北省人工影响天气中心,石家庄050021 [4]廊坊市气象局,河北廊坊065000

出　　处：《河南科学》2024年第12期1800-1808,共9页Henan Science

基　　金：中国气象局预报员专项(CMAYBY2020-012);河北省气象局科技项目(21zc06)。

摘　　要：利用飞机云物理探测系统观测数据,结合中尺度数值模式WRF4.3,分析了2023年7月29日至8月1日河北受台风“杜苏芮”减弱环流北上影响下的暴雨云系微物理特征.结果表明:①暴雨过程前期,过冷云水含量充足,液态水含量>0.2 g/m^(3);云层越低,云中液态水含量和云粒子数浓度就越高.②强降雨时段,整层云层基本为负绝对涡度中心,云系东侧对流层低层配合有很强的正绝对涡度中心,则降雨强度较大,维持时间较长.③暴雨云体中高层存在大量雪晶,中低层为丰富的云水和雨水,为暴雨提供了丰富的水汽.Using the observation data of the aircraft cloud physical detection system and the mesoscale numerical model WRF4.3,this paper analyzes the microphysical characteristics of the rainstorm cloud system in Hebei from July 29 to August 1,2023 under the influence of the weakening northbound circulation of Typhoon Dusurui.The results show that:①In the early stage of the rainstorm,the water content of supercooled cloud is sufficient,and the liquid water content is>0.2 g/m^(3).The lower the cloud layer,the higher the liquid water content and the number of cloud particles in the cloud.②During the heavy rainfall period,the whole cloud layer is basically a negative absolute vortex center,and the lower troposphere on the east side of the cloud system has a strong positive absolute vortex center,so the rainfall intensity is larger and the maintenance time is longer.③There are a large amount of snow crystals in the middle and upper layers of the rainstorm cloud body,and there are abundant cloud water and rainwater in the middle and lower layers,which provide abundant water vapor for the rainstorm.

关 键 词：特大暴雨 飞机观测 云微物理特征 WRF模拟 

分 类 号：P456.1[天文地球—大气科学及气象学]