2009年入冬新疆阿勒泰地区一次大降水过程的诊断分析

The Diagnostic Analysis of a Strong Precipitation Weather in Aletay Area of Xinjiang in the Winter of 2009

摘要: 本文利用常规观测资料、T639数值产品以及天文动力等资料，对新疆阿勒泰地区2009年11月5~6日强降水天气过程进行了诊断分析。指出了影响该地区大降水的水汽路径和输送模式，以及大降水与高能舌、能量锋的关系，最后用天文动力结构分析方法对此次大降水天气进行了天文动力结构诊断分析，从而进一步加深了对阿勒泰地区大降水天气发生发展的动力机制的认识，对防灾减灾具有重要意义。

Abstract: By using conventional observation data, T639 model products and astronomical power data, this paper makes a diagnostic analysis of a strong precipitation happened in Xinjiang Aletay from 5 November to 6 November 2009. It points out the region’s strong precipitation vapor path and transmission mode that affect the strong precipitation weather, and the relationship between the energy tongue and energy front. In the end, this weather process was diagnosed by using astrody-namical analysis method, which gets a deeper understanding of the mechanism of developing strong precipitation weather in the north of Xinjiang, particularly the Aletay area; it is very signif-icant to reduce and prevent the disaster.