ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 38 Issue 11 > 2012,38(11):1429-1435. DOI:10.7519/j.issn.1000-0526.2012.11.013 Prev Next
Analysis of the August 2012 Atmospheric Circulation and Weather
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Abstract:
The following are the main characteristics of the general atmospheric circulation in August 2012. There was one polar vortex center in the Northern Hemisphere and its intensity is stronger than normal. The circulation presents a five wave pattern in the middle high latitudes. In comparison with the sates of normal years, the western ridge spot of West Pacific subtropical high is further west and north. The monthly mean temperature is 21.4℃, and is 0.6℃ higher than normal (20.8℃). The monthly mean precipitation is 92.1 mm, and is 12.4% less than normal (105.1 mm).There are 8 precipitation processes, and 7 tropical cyclones have acted in the western North Pacific. There are 5 tropical cyclones landed China. Besides, tropical cyclone “Bolaven” seriously affected Northeast of China. Extreme high temperature weather occurred in areas of Jiangnan, Huanan, Jianghan, Sichuan Basin and Xinjiang. The hail storm disasters happened in 19 provinces, regions and cities in China.
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