气象Issue(11)：1422-1427,6.DOI:10.7519/j.issn.1000-0526.2014.11.016
2014年8月大气环流和天气分析
Analysis of the August 2014 Atmospheric Circulation and Weather
摘要
Abstract
The main characteristics of the general circulation in August 2014 are listed as follows:There are two polar vortex centers in the Northern Hemisphere.In the middle-high latitudes,the circulation pres-ents a four-wave pattern.The subtropical high lies southwards and is stronger than its climatological mean.Meanwhile,monthly mean precipitation amount is 104.4 mm,which is 0.9% less than its climato-logical mean (105.3 mm).Monthly mean temperature over China is 20.6℃,which is a little lower than its climatological mean (20.8℃).There are 8 severe rainfall events with extreme daily precipitation records observed at some stations in China.No typhoon forms over the northwestern Pacific Ocean and the South China Sea in August,which happens firstly since 1949.The only active typhoon is No.1314 Genevieve, which comes from the eastern Pacific.Some low-temperature and sunlight-lack events happen in the middle and lower reaches of Yangtze River region.关键词
副热带高压/暴雨/热带气旋/低温寡照Key words
subtropical high/rainstorm/tropical cyclone/low temperature and sunlight lack分类
天文与地球科学引用本文复制引用
杨超,许映龙..2014年8月大气环流和天气分析[J].气象,2014,(11):1422-1427,6.
