2016年7月9日~11日青海省海南地区一次大到暴雨天气过程分析  

Analysis of a Heavy Rain to Rainstorm Weather in Hainan Area of Qinghai Province from July 9 to 11,2016

作　　者：钟元龙 夏雨虹 买永瑞 Zhong Yuanlong;Xia Yuhong;Mai Yongrui(Hainan Prefecture Meteorological Bureau of Qinghai Province,Gonghe 813099,China)

机构地区：[1]青海省海南藏族自治州气象局,共和813099

出　　处：《青海科技》2023年第1期120-124,132,共6页Qinghai Science and Technology

摘　　要：针对2016年7月9日~11日发生在青海省海南州境内的一次大到暴雨天气过程,利用常规气象观测资料、自动气象站雨量、天气图、EC数值预报产品、FY-2c/2d红外卫星云图资料,分析了造成此次天气过程的天气系统、各物理量场、卫星云图特征。结果表明:造成此次大到暴雨的主要原因是副高外围西南暖湿气流与新疆槽不断分裂冷空气在青海省东部交汇,散度、垂直速度的高低空合理配置及高能、高湿是此次强降雨出现的动力、热力和水汽条件,中尺度对流云团与大到暴雨具有较好的对应关系。分析结果对青海省预报类似大降水天气过程具有重要的参考意义。In view of a rainstorm weather process in Hainan,Qinghai Province from July 9 to 11,2016,the weather system,physical quantity field and satellite cloud image characteristics of the weather process were analyzed by using conventional meteorological observation data,automatic weather station rainfall,weather map,EC numerical forecast products and FY-2c/2d infrared satellite cloud image data.The results show that the main cause of the rainstorm is that the southwest warm and humid airflow near the subtropical high meets the cold air separated by the Xinjiang trough in the east of Qinghai,the divergence and vertical velocity of high and low heights are rationally allocated,high energy and high humidity are the driving force of the rainstorm,and the heat and water vapor conditions,and the mesoscale convective clouds have a good corresponding relationship with the rainstorm.The analysis results have important reference significance for the forecast of weather processes similar to heavy precipitation in the future.

关 键 词：大到暴雨 物理量场 中尺度对流云团 

分 类 号：P458.121[天文地球—大气科学及气象学]