贵阳地区强降雪和连续性弱降雪天气的合成和对比分析

Composite and contrastive analysis of the heavy snowfall and the longest lasting light snowfall in guiyang area

在对贵阳地区1997~2006年的降雪日进行统计的基础上,选取产生贵阳地区强降雪的7个典型个例及10年来最长的一次连续性弱降雪个例进行合成和各物理量的诊断对比分析.结果表明:两类型降雪产生的天气背景、影响系统和物理条件不同,所得到的降雪发生环境和条件,对预报贵阳地区降雪的发生和降雪强度有一定的参考价值.

Based on the statistics of the snowfall days in Guiyang area during 1997—2006,a composite analysis is conducted for 7 typical example of rea,including diagnositic and contrastive analysis of some kings of physical factors.The results show that circulation,influencing systems and physical condition of two kinds of snowfall are different.The environment and condition which is obtained by composite analysis can be used as reference in the forecasting snowfall and intensity of snowfall in Guiyang area.