违反了 PRIMARY KEY 约束 'PK_t_counter'。不能在对象 'dbo.t_counter' 中插入重复键。 语句已终止。 北京首都国际机场冻雨过程的模拟及其产生的可能机制-Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation
doi:  10.3878/j.issn.1006-9585.2018.17051
北京首都国际机场冻雨过程的模拟及其产生的可能机制

Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation
摘要点击 285  全文点击 436  投稿时间:2017-03-23  
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基金:  民航华北空管局科技立项项目201405
中文关键词:  冻雨  暖雨机制  WRF模式  FY-2E数据
英文关键词:  Freezing-rain  warm-rain mechanism  WRF model  FY-2E data
              
作者中文名作者英文名单位
柳贵钧LIU Guijun中国民用航空华北地区空中交通管理局气象中心, 北京 100621
王飞WANG Fei中国民用航空华北地区空中交通管理局气象中心, 北京 100621
沈晗SHEN Han中国民用航空华北地区空中交通管理局气象中心, 北京 100621
冯向阳FENG Xiangyang中国民用航空华北地区空中交通管理局气象中心, 北京 100621
张伟ZHANG Wei中国民用航空华北地区空中交通管理局气象中心, 北京 100621
引用:柳贵钧,王飞,沈晗,冯向阳,张伟.2018.北京首都国际机场冻雨过程的模拟及其产生的可能机制[J].气候与环境研究,23(2):235-240,doi:10.3878/j.issn.1006-9585.2018.17051.
Citation:LIU Guijun,WANG Fei,SHEN Han,FENG Xiangyang,ZHANG Wei.2018.Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation[J].Climatic and Environmental Research(in Chinese),23(2):235-240,doi:10.3878/j.issn.1006-9585.2018.17051.
中文摘要:
      为了探讨北京首都国际机场冻雨过程产生的可能机制,利用NCEP再分析资料、风云2号E星(FY-2E)的云顶亮温(Black Body Temperature,TBB)逐小时资料及风云3号A星(FY-3A)反演的云顶高度日平均资料做为检验依据,使用美国非静力中尺度模式(Weather Research and Forecasting,WRF)对2013年1月31日发生在首都机场附近地区的一次冻雨过程进行模拟,得出以下结论:1)模拟结果中的云顶温度与FY-2E的TBB逐小时资料对应较好:此次冻雨过程,整个降水云系云顶温度在0~-6℃之间,模拟结果水成物的垂直分布也得到了较好的印证;通过FY-3A反演的云顶高度日平均资料的检验,证明此次冻雨过程的云高基本维持在3 km左右,而且云微物理固态项的含量少。2)云顶温度、云顶高度实况与模式模拟表明此次过程是一次典型的暖雨机制冻雨,这说明产生北方冻雨的可能机制并不单一,冰相机制与暖雨机制可以同时存在。
Abstract:
      In order to investigate the possible mechanism of freezing rain process, the WRF model (Weather Research and Forecasting) was used to simulate a freezing-rain process occurred on 31 Jan 2013 in the area of the Beijing Capital International Airport. The NECP reanalysis data, the Black Body Temperature (TBB) of FY-2E, the daily average cloud height data of FY-3A are used to verify the model simulation. Major conclusions are as follows:1) The cloud top temperature of the simulation is consistent with TBB of FY-2E. During the freezing rain process, the cloud top temperature varied between 0--6℃, and the simulated vertical distribution of the hydrometeors agree well with observations. According to the cloud top height derived from FY-3A observations, it is found that the cloud top in the freezing-rain process basically remained at around 3 km, and the clouds contained less microphysical solid contents. 2) Observed cloud top temperature and height and the simulation results show that this is a typical warm freezing rain process. This result indicates that the mechanism for the formation of freezing rain in northern China may not be single. Ice-crystal processes and warm-rain processes may simultaneously exist during the formation of freezing rain.
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