一次暴雨过程降水强度的温度敏感性研究
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摘要
文章利用NCEP1°×1°的6h再分析资料和WRV3.6模式对2014-07-17～2014-07-18大兴安岭东部地区1次暴雨天气过程中降水强度的温度敏感性进行了研究。根据天气概况,文章分别设计4个参数方案进行了高空降温强迫模拟试验,同时对不同时间和空间上的温度变化对降水强度的影响进行了分析,并得出结论。为能够更深入地分析机理找到暴雨天气系统的触发和生消机制提供参考。
Based on the 6 hours'reanalysis data of NCAR 1°×1°and WRF V3.6 model,this paper studies the temperature sensitivity of precipitation intensity during a torrential rain over the eastern region on 17 th to 18 th July 2014 in Greater Khingan Range.According to the weather situation,four schemes were designed for upper air cooling forced simulation experiments.At the same time,the different time and space of temperature change on the influence of rainfall intensity are analyzed and a conclusion is made,which would provide the references for analyzing mechanism in-depth and finding the trigger and elimination of the rainstorm weather system.
Based on the 6 hours'reanalysis data of NCAR 1°×1°and WRF V3.6 model,this paper studies the temperature sensitivity of precipitation intensity during a torrential rain over the eastern region on 17 th to 18 th July 2014 in Greater Khingan Range.According to the weather situation,four schemes were designed for upper air cooling forced simulation experiments.At the same time,the different time and space of temperature change on the influence of rainfall intensity are analyzed and a conclusion is made,which would provide the references for analyzing mechanism in-depth and finding the trigger and elimination of the rainstorm weather system.
引文
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[2]陈宝君,宋娟.人工增雨降温机理的数值模拟研究:对流云个例试验[J].气象科学,2006,26(01):47-52.
[3]李德俊,陈宝君.云微物理过程对强对流风暴的影响之数值模拟研究[J].气象科学,2008,28(03):264-270.
[4]XUE L,HASHIMOTO A,MURAKAMI M,et al.Implementation of a silver iodide cloud-seeding parameterization in WRF.PartⅠ:model description and idealized 2Dsensitivity tests[J].Journal of Applied Meteorology&Climatology,2013,52(6):1433-1457.
[5]XUE L,TENSSENDORF S,NELSON E,et al.Implementation of a silver iodide cloud-seeding parameterization in WRF.PartⅡ:3Dsimulations of actual seeding events and sensitivity tests[J].Journal of Applied Meteorology&Climatology,2013,52(6):1458-1476.
[6]卢培玉.人工增雨对自然环境的影响探讨[J].中国人口·资源与环境,2014,24(S1):374-376.
[7]刘卫国,陶玥,党娟,等.2014年春季华北两次降水过程的人工增雨催化数值模拟研究[J].大气科学,2016,40(04):669-688.
[8]何晖,金华,李宏宇,等.2008年奥运会开幕式日人工消减雨作业中尺度数值模拟的初步结果[J].气候与环境研究,2012,17(01):46-58.