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| 一次副热带高压后部层状云降水中山区层状云宏微物理结构探测分析 | |
| 引用本文： | 马新成,黄梦宇,于潇洧,金华,毕凯,董鹏捷,张磊,张蔷.一次副热带高压后部层状云降水中山区层状云宏微物理结构探测分析[J].气候与环境研究,2012,17(6):711-718. |
| 作者姓名： | 马新成 黄梦宇 于潇洧 金华 毕凯 董鹏捷 张磊 张蔷 |
| 作者单位： | 1. 北京市人工影响天气办公室,北京100089;北京市气象局云降水物理研究与云水资源开发北京市重点实验室,北京100089 2. 北京市人工影响天气办公室,北京,100089 3. 95959部队气象科,北京,100195 |
| 基金项目： | 北京市优秀人才培养项目20081D0200800058, 公益性行业(气象)科研专项资助项目GYHY200906025, 国家重点基础研究发展计划项目2011CB403401 |
| 摘 要： | 利用2010年8月18日副热带高压后部层状云降水中山区层状云的飞机穿云观测资料,结合雷达、卫星云图及天气图等资料,详细分析了此次高后降水中山区层状云的宏观特征、微物理结构,并对降水形成机制进行初步探讨.结果表明:此个例由两层云构成,上层为冷云,下层主要为暖云;冷层粒子图像显示主要以板状为主,平板柱状、柱状和霰粒为辅,冰粒子的聚合体在整个冷层都有出现;降水形成机制为播种—喂养机制,冷云中观测到丛集和淞附现象,其中淞附现象主要发生在冷云的中下部靠近融化层附近. |
| 关 键 词： | 高后降水 山区层状云 微物理结构 飞机探测 |
| 收稿时间： | 2012/8/28 0:00:00 |
| 修稿时间： | 2012/9/29 0:00:00 |
An Observational Study of Macro/Microphysical Structures of Stratiform Cloud in a High-Pressure System Rear over Mountain |
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| MA Xincheng,HUANG Mengyu,YU Xiaowei,JIN Hu,BI Kai,DONG Pengjie,ZHANG Lei and ZHANG Qiang.An Observational Study of Macro/Microphysical Structures of Stratiform Cloud in a High-Pressure System Rear over Mountain[J].Climatic and Environmental Research,2012,17(6):711-718. | |
| Authors: | MA Xincheng HUANG Mengyu YU Xiaowei JIN Hu BI Kai DONG Pengjie ZHANG Lei and ZHANG Qiang |
| Institution: | Beijing Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitations, and Water Resources, Beijing Meteorological Bureau, Beijing 100089;Beijing Weather Modification Office, Beijing 100089;Meteorological Office, Unit 95959, Beijing 100195;Beijing Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitations, and Water Resources, Beijing Meteorological Bureau, Beijing 100089;Beijing Weather Modification Office, Beijing 100089;Beijing Weather Modification Office, Beijing 100089;Beijing Weather Modification Office, Beijing 100089;Beijing Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitations, and Water Resources, Beijing Meteorological Bureau, Beijing 100089 |
| Abstract: | A detailed analysis of macro/micro structure for stratiform cloud in a high-pressure system rear over mountain has been conducted on data including airborne DMT(Droplet Measurement Technologies), radar, and weather chart etc. obtained from field campaign on 18 August 2010 in Beijing, and the precipitation formation mechanism is preliminarily discussed. The results show that the stratiform clouds in case consist of two layers, with the top layer the cold clouds and the bottom one the warm clouds. The aggregates of ice particles are found to widely and randomly spread in the whole cold layer, where the ice particle shapes are mainly plate, supplemented by column and graupel. Furthermore, the precipitation results from the seeder-feeder mechanism in which low level supercooled clouds are seeded with ice crystals from above. In addition, both aggregation and riming (accretion of liquid water) growth of ice crystals are also observed in the cold clouds, and the riming mainly occurs close to melting layer in the lower-middle part of the cold layer. |
| Keywords: | High-pressure system rear Stratiform cloud over mountain Microphysical structure Aircraft observation |
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