福建省2007年7月持续高温的环境特征

Environment Characteristic of Continues High Temperature in July 2007 in Fujian Province

利用高温天气期间的相关资料,分析了福建2007年7月高温天气过程的时空分布特点、环流背景特征及其形成机制,结果表明:此次异常高温现象的直接成因是西太平洋副热带高压于6月下旬西伸后对福建省全境的持续控制;而这又与南亚伊朗高压东段东进、北翘,极涡活动偏北偏东等因素有关。

Utilizing the correlation data during the high temperature weather period, we analyze the space and time distribution characteristic, circulation background characteristic and formation mechanism of the high temperature weather process in July, 2007 in Fujian. The result shows： This unusual high - temperature phenomenon is directly caused by the continuous control of west the Pacific ocean subtropical high over Fujian province after extending westwards in late June; and another factor is that the east section of South Asian I ran high pressure moving eastwards, raising northwards and polar vortex activity lies northern and eastern.