Analysis of a Strong Convection Weather Process Occurred in Kezhou of Xinjiang

J4 ›› 2010, Vol. 28 ›› Issue (2): 206-211.

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Analysis of a Strong Convection Weather Process Occurred in Kezhou of Xinjiang

1.Kezhou Meteorological Bureau,Atushi 845350,China；2.Kashi MeteorologicalBureau,Kashi 844000,China;3.The Technical Equipment Center of Xinjiang Meteorological Bureau, Urmuqi 83002,China

Received:2008-05-28 Revised:2009-10-26 Online:2010-06-30 Published:2010-06-30

新疆克州一次强对流天气过程的诊断

王金辉¹，支　俊²，方　冰²，刘　涛³，唐　秀¹

1.新疆克州地区气象局，新疆　阿图什　845350；2. 新疆喀什地区气象局雷达站，新疆　喀什　844000；
3. 新疆气象局技术装备中心，新疆　乌鲁木齐　830002

作者简介:王金辉（１９７３－），女，工程师，主要从事短期天气预报工作
基金资助:
新疆气象局业务新技术（200916）项目资助

Abstract

Abstract:

Based on the conventional meteorological observations and Doppler radar data，the cause of the strong convective weather process occurred in Kezhou on 26 May 2008 was analyzed from weather situation, T213 numerical prediction physical quantity field and radar echo’s evolution. Results show that this weather event occurred under the low value system over Central Asia, the invasion of high level cold air triggered the unstable energy release, and strong updrafts produced by the coupled of high and low level jets were favorable for occurrence of this severe weather. The instable atmospheric layer and well water vapor transport were advantageous to formation and developing of the convective weather, and the convergence of radial velocity was the direct reason for the convective weather.

摘要：

利用常规气象资料和喀什多普勒雷达资料，从天气形势、T213数值预报物理量场和雷达回波演变特征分析2008年5月26日克州境内出现的一次大范围强对流天气过程的成因。结果表明：此次天气过程发生在中亚低值系统，高空冷空气的侵入对不稳定能量释放起触发作用，高低空急流的相互配置为此次天气过程的发生提供了有利的动力抬升条件，大气不稳定层结和良好的水汽输送条件有利于对流天气的形成和发展；表现在雷达回波强度的不断发展加强和径向速度的风场辐合。

关键词: 强对流, 多普勒雷达, 常规气象资料, T213物理量预报产品

CLC Number:

P458.1

WANG Jin-Hui, QI Dun, FANG Bing, LIU Chao, TANG Xiu. Analysis of a Strong Convection Weather Process Occurred in Kezhou of Xinjiang[J]. J4, 2010, 28(2): 206-211.

王金辉, 支俊, 方冰, 刘涛, 唐秀. 新疆克州一次强对流天气过程的诊断[J]. J4, 2010, 28(2): 206-211.

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Analysis of a Strong Convection Weather Process Occurred in Kezhou of Xinjiang

新疆克州一次强对流天气过程的诊断

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