哈密地区一次罕见的秋季大降水天气过程分析  

Analysis on a Rare Heavy Precipitation Process in Autumn in Hami Region

作　　者：屠月青 张科 奚丽霞 

机构地区：[1]新疆维吾尔自治区哈密地区气象局,新疆哈密839000 [2]库尔勒机场

出　　处：《现代农业科技》2011年第12期11-13,16,共4页Modern Agricultural Science and Technology

摘　　要：对2010年9月4—5日哈密地区一次大降水天气过程的成因进行了分析,表明高低空环流形势的配合、对流层低层强烈辐合与高层强烈辐散、垂直上升运动以及"三股气流"的存在是其形成的重要机制,同时在哈密地区大降水天气短期预报着眼点方面获得了一些有益的启示:充分利用数值预报模式产品,对环流形势演变、各物理量场,尤其是产生降水的水汽、动力、不稳定能量3个宏观条件的物理量场充分细致分析,对降水预报有非常重要的指示意义。The cause of a heavy precipitation process in Hami Region from 4 to 5 in September in 2010 was analyzed,the results showed that the cooperation of air circulation between high level and low level,the intensity convergence in low level and diverge in high,the ascending motion and the existence of ＇3 air flows＇ were important causes of this precipitation process,and some key points of heavy rainfall forecasting in Hami were found out,there was very important indication of rainfall forecasting that based on making the best of numerical forecast product,meticulous analysis about air circulation evolution,physical quantity field,especially water vapor,dynamic and unstable energy.

关 键 词：大降水 成因 数值预报 预报着眼点 新疆哈密 

分 类 号：P458.121.1[天文地球—大气科学及气象学]