ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 40 Issue 2 > 2014,40(2):253-260. DOI:10.7519/j.issn.1000-0526.2014.02.015 Prev Next
Analysis of the November 2013 Atmospheric Circulation and Weather
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Abstract:
The main characteristics of the general atmospheric circulation in November 2013 are as follows. There is one polar vortex center located in the Arctic Circle in the Northern Hemisphere with stronger strength than normal years. The circulation presents latitudinal patterns in middle and high latitudes. The average south branch trough is located around 80°E. The subtropical high is stronger than normal years, located more westward and northward. The monthly mean precipitation is 22.5 mm, 19.7% more than the normal (18.8 mm). The monthly mean temperature is 3.6℃, 0.7℃ higher than the normal (2.9℃). There are three cold air processes and six heavier rainfall processes during this month. The Northeast Region suffers from extreme snows twice and some places are hit by snowstorm or blizzards. Tropical cyclone “Haiyan” brings gale and heavy rains to South China. There are obvious rainfalls in the northern winter wheat region and the Jiangnan Region. Meanwhile, the fog and the haze appear in the central and eastern China due to the weak cold airs. The monthly mean fog and haze days are 4.3 days, which is the maximum record since 1961.
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