山西2006年雨季天气气候特征分析  

Analysis of Weather Characteristics in Rainy Season over Shanxi Province in 2006

作　　者：姚彩霞[1] 杨英[1] 任璞[1] 郭俊龙[1] 郝建萍[1] 

机构地区：[1]山西省气象台,太原030006

出　　处：《气象科技》2008年第1期74-77,共4页Meteorological Science and Technology

摘　　要：山西省在2006年雨季（7-8月）出现大范围的高温干旱,导致了严重的人畜饮水困难和农业灾害。尤其是在常年降水峰期（7月下旬至8月上旬）,没有出现一场大范围强降雨天气过程,在历史上实属罕见。该文通过对500hPa环流场、副热带高压特征量等资料的分析。揭示了山西2006年雨季气候异常的主要原因,主要包括冷空气的活动偏弱、副热带高压位置异常偏北,中低纬度天气系统的配合不到位、ENSO的形成及其影响等。A large-scale drought and high temperature weather occurred in the rainy season （July and August） of 2006 over Shanxi Province, resulting in severe drinking water difficulty and agricultural disasters. Particularly, there occurred much less heavy rainfall processes in the usual rainy period from July 21 to August 10 of the year. It seldom occurred in history. The data of atmospheric circulation at 500 hPa and the indexes of subtropical high are analyzed and primary causes mainly include the activity of cold air, the location of subtropical high, the disposition status of weather systems and so on.

关 键 词：山西 雨季 天气气候特征 冷空气 副热带高压 

分 类 号：P458.121.1[天文地球—大气科学及气象学] V321.2[航空宇航科学与技术—人机与环境工程]