| 中亚五国局地暴雨及其环流特征 |
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| 引用本文： | 李如琦.中亚五国局地暴雨及其环流特征[J].新疆气象,2019,13(1):1-6. |
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| 作者姓名： | 李如琦 |
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| 基金项目： | 中亚大气科学研究基金（CASS201707）、中国沙漠气象科学研究基金（SQJ2015001）和中国气象局预报员专项（CMAYBY2017-083）共同资助. |
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| 摘 要： | 采用NCEP/NCAR全球逐日格点再分析资料，分析了中亚五国暴雨的落区特征，归纳了不同落区暴雨环流形势的天气学特点。结果表明：中亚五国暴雨次数较少，局地性强。暴雨三个相对集中的区域分别为哈萨克斯坦西部、北部和东部。中亚五国暴雨的环流可分为11个环流型。中亚五国暴雨的影响系统主要为东欧低值系统东南伸，西西伯利亚低值系统西南伸，以及中纬度西风带上东移的短波。伊朗脊是控制中亚五国降水的主要天气系统。中亚五国降水主要有3个水汽源地，分别是地中海，大西洋和北冰洋。
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| 关 键 词： | 中亚 暴雨 空间分布 环流特征 |
Characteristics of Local Rainstorm and Its Circulation in Five Countries of Central Asian |
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| Abstract: | Based on NCEP/NCAR reanalyze data, we analyzed the characteristics of the rainstorm in the five countries of Central Asian, and summarized the circulation situation of rainstorm in different areas. The results show that the number of rainstorms in five countries is less and the local rainfalls is obviously.The threeconcentrated relatively areas of local rainstorms are located in western, northern and eastern of Kazakhstan.The circulation of heavy rain in the five central Asian countries exist 11 patterns.The impact system of the five Central Asian countries is mainly the southeast extension of the low-pressure system locate in eastern Europe, the southwest extension of the low-pressure system of western Siberia, and the eastward shift short wave on the middle latitude air belt.The Iranian ridge as the main weather system which controls the precipitation of five countries in Central Asian..The five countries have three water sources: the Mediterranean, the Atlantic and the Arctic ocean. |
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| Keywords: | Central Asia rainstorm spatial distribution circulation characteristics |
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