气象2012，Vol.38Issue(10)：1307-1312,6.
2012年7月大气环流和天气分析
Analysis of the July 2012 Atmospheric Circulation and Weather
摘要
Abstract
The main characteristics of the general atmospheric circulation in July 2012 are as follows. The circulation presented a pattern of two highs and one deep trough at the middle-high latitudes over Eurasia, and the upper troughs were active. The northwestern pacific subtropical high was weaker than normal. The monthly mean precipitation amount was 135 mm, which is 14.4% more than normal. The monthly mean temperature was 22. 1℃, being 0.4℃ higher than normal. There were 8 heavy rainfall processes, and extreme precipitation records were observed at many stations. Four tropical cyclones were generated over the northwestern Pacific, however, only one landed on China. The number of high temperature days is obviously more than normal in some areas, such as Jiangnan, Jianghuai, Jianghan, and huanghuai etc.关键词
大气环流/暴雨/高温/热带气旋Key words
atmospheric circulation/heavy rainfall/high temperature/tropical cyclone分类
天文与地球科学引用本文复制引用
周宁芳..2012年7月大气环流和天气分析[J].气象,2012,38(10):1307-1312,6.
