Airborne Investigation of Riming:Cloud and Precipitation Microphysics within a Weak Convective System in North China

作     者：Xiangfeng HU Hao HUANG Shaoyu HOU Kun ZHAO Chuanfeng ZHAO Yinghui LU Jiefang YANG Rong ZHANG Delong ZHAO Weiguo LIU Dan ZHANG Haixia XIAO Xiangfeng HU;Hao HUANG;Shaoyu HOU;Kun ZHAO;Chuanfeng ZHAO;Yinghui LU;Jiefang YANG;Rong ZHANG;Delong ZHAO;Weiguo LIU;Dan ZHANG;Haixia XIAO

作者机构：Key Laboratory of Radar Meteorology and State Key Laboratory of Severe WeatherChina Meteorology AdministrationBeijing 100044China China Meteorological Administration Xiong'an Atmospheric Boundary Layer Key LaboratoryXiong'an New AreaHebei 071703China Hebei Provincial Weather Modification CenterShijiazhuangHebei 051430China School of Atmospheric SciencesKey Laboratory of Mesoscale Severe Weather/MOEand Frontiers Science Center for Critical Earth Material CyclingNanjing UniversityJiangsu 210023China Department of Atmospheric and Oceanic SciencesSchool of PhysicsPeking UniversityBeijing 100871China Laboratory of Cloud-Precipitation Physics and Severe StormsInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Cloud-Precipitation Physics and Weather Modification Key LaboratoryChina Meteorology AdministrationBeijing 100044China Beijing Weather Modification CenterBeijing 100089China Nanjing Joint Institute for Atmospheric SciencesNanjingJiangsu 210000China 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展(英文版))

年 卷 期：2025年第42卷第3期

页      面：515-526页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.42025501) the Natural Science Foundation of Hebei Province(Grant No.D2024304015) the Fundamental Research Funds for the Central Universities,including Grant No.020714380217 the Cemac“GeoX”Interdisciplinary Program(Grant No.020714380210) the Open Grants of the Key Laboratory of Radar Meteorology,China Meteorological Administration(Grant No.2023LRM-B05) the Hebei Meteorological Service Scientific Research and Development Project(Grant No.23ky08) the Open Research Program of the State Key Laboratory of Severe Weather(Grant No.2023LASW-A01) 

主　　题：riming collision efficiency airflow fluctuation particle habit aircraft measurement 

摘      要：The process of riming significantly impacts the microphysical characteristics of *** study uses aircraft and radar observation data in stratiform clouds with convection embedded that occurred in the central and southern regions of North China on 22 May *** microphysical structural characteristics and processes near the embedded convection core and in the stratiform cloud are analyzed *** attention is given to the effect of riming on the microphysical properties near the upper boundary of the melting layer and to the factors influencing riming *** collaborative observations reveal that the particle size distributions observed near the convection core and in the stratiform region are close,while the particle properties like habit and riming degree are quite *** the melting layer,larger plate-like ice particles and supercooled water droplets(D50μm)are more abundant near the convective core,leading to higher collision efficiencies between ice particles and supercooled water *** fluctuation amplitudes of vertical airflow near the convective core also contribute to the increased riming activity and the formation of more heavily rimed particles,such as ***,in situ measurements from airborne probes also revealed that above the melting layer,the riming process involves two stages:the mass of snow crystals grows as supercooled droplets merge internally without changing size,followed by external freezing that significantly enlarges the crystals.