| 一次冻雨过程云物理特征的数值模拟 |
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| 引用本文： | 刘香娥,高茜,何晖,李杰,李兴宇,贾星灿. 一次冻雨过程云物理特征的数值模拟[J]. 气候与环境研究, 2017, 22(2): 191-202 |
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| 作者姓名： | 刘香娥 高茜 何晖 李杰 李兴宇 贾星灿 |
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| 作者单位： | 北京市人工影响天气办公室, 北京 100089;云降水物理研究和云水资源开发北京市重点试验室, 北京 100089,北京市人工影响天气办公室, 北京 100089;云降水物理研究和云水资源开发北京市重点试验室, 北京 100089,北京市人工影响天气办公室, 北京 100089;云降水物理研究和云水资源开发北京市重点试验室, 北京 100089,南京航空航天大学民航学院, 南京 211106,中国科学院大气物理研究所云降水物理与强风暴实验室, 北京 100029,云降水物理研究和云水资源开发北京市重点试验室, 北京 100089;中国气象局北京城市气象研究所, 北京 100089 |
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| 基金项目： | 北京市自然科学基金资助项目6154027、8164058,国家重点研发计划项目2016YFA0601704,国家自然科学基金项目41675138、41375136,中央高校基本科研业务费专项资金NJ20140015,国家电网公司科技项目GCB17201400162,公益性行业（气象）科研专项项目GYHY201306065 |
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| 摘 要： | 运用中尺度数值模式WRF3.5.1对2011年1月1日贵州境内的一次冻雨天气过程进行了数值模拟,研究了本次过程的大气层结、冻雨区云系的宏微观结构和云物理特征,初步分析了冻雨形成的云微物理过程和成因。结果表明,贵州境内的冻雨区(26°N~29°N)具有冷性和部分"冷—暖—冷"的温度层结,在高层没有显著的冰相粒子,冻雨区是相对较强的水汽辐合中心,丰富的水汽输送在冷性的环境条件下形成云滴,进而碰并产生雨滴,过冷雨水主要通过暖雨过程形成;雨滴继续下落至近地层并保持过冷雨水形式,最后接触到低于0°C的物体或地面,迅速冻结而产生地面冻雨。
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| 关 键 词： | 冻雨 WRF模式 数值模拟 |
| 收稿时间： | 2015-10-26 |
A Numerical Simulation on Cloud Physical Characteristics of Freezing Rain |
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| LIU Xiang''e,GAO Qian,HE Hui,Li Jie,Li Xingyu and JIA Xingcan. A Numerical Simulation on Cloud Physical Characteristics of Freezing Rain[J]. Climatic and Environmental Research, 2017, 22(2): 191-202 |
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| Authors: | LIU Xiang''e GAO Qian HE Hui Li Jie Li Xingyu JIA Xingcan |
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| Affiliation: | Beijing Municipal Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitation, and Atmospheric Water Resources, Beijing 100089,Beijing Municipal Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitation, and Atmospheric Water Resources, Beijing 100089,Beijing Municipal Weather Modification Office, Beijing 100089;Beijing Key Laboratory of Cloud, Precipitation, and Atmospheric Water Resources, Beijing 100089,College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106,Laboratory of Cloud and Precipitation and Severe Storms, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 and Beijing Key Laboratory of Cloud, Precipitation, and Atmospheric Water Resources, Beijing 100089;Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089 |
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| Abstract: | The WRF3.5.1 model is used to simulate a freezing rain process that occurred on 1 January 2011 in Guizhou Province. The atmospheric stratification and macro and micro cloud structures and cloud physical characteristics are analyzed. Results show that in Guizhou Province, the atmosphere above the freezing rain area (26°N-29°N) is characterized by a cold and partial "cold-warm-cold" temperature stratifications. There were no significant ice phase particles at the top; the freezing rain area corresponded to a relatively strong water vapor convergence center, and cloud droplets formed under the cold condition with abundant water vapor. These cloud droplets collided during their falling, and supercooled raindrops mainly formed during the warm rain process. Raindrops stayed supercooled and fell to the ground. When they were exposed to below zero degrees of objects or on the ground, freezing rain quickly formed. |
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| Keywords: | Freezing rain WRF model Numerical simulation |
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