旱、涝气候背景下塔尔湖暴雨对比分析

Comparative Analysis of the Heavy Rain on Drought and Flood Climate Condition in Taer Lake

本文利用Micaps常规资料和自动站资料，对多雨年和少雨年发生在塔尔湖地区的两次暴雨过程进行了对比分析，结果表明：不同的旱涝背景下形成暴雨的环流特征、影响系统、副高进退的阶段、物理量指标不同，但东高西低形势的建立、中低层暖湿气流的聚积、地形抬升作用和各气层之间切变幅合系统垂直叠置而形成暴雨的触发机制相同，暴雨预报的着眼点相同。

Two heavy rains were analyzed in more rain year and less rain year in Taer lake based on the observation and automatic data from Micaps. The result show： The circulation, influence system, the subtropical high stage and physical index were different in drought and flood year. But the trigger of heavy rain was same and the condition of the heavy rain forecast was same