ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 39 Issue 2 > 2013,39(2):259-264. DOI:10.7519/j.issn.1000-0526.2013.02.017 Prev Next
Analysis of the November 2012 Atmospheric Circulation and Weather
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Abstract:
The following are the main characteristics of the general atmospheric circulation in November 2012. There was one polar vortex center in the Northern Hemisphere, which was located in the northern Canada. The circulation presents meridional patterns in middle high latitudes. The average south baranch trough is located at 90°E nearby and eastward shift is frequently. The subtropical high is stronger than normal years’. The monthly mean precipitation is 31.7 mm, and 68.6% more than normal (18.8 mm). The monthly mean temperature is 2.0℃, and 0.9℃ lower than normal (2.9℃). There were four cold air processes nationwide and three rainfall processes in the month. The northern areas of China suffered from a wide range of heavy snowfall and chilling weather. Most areas of North China usher in the first snowfall this year, in Beijing, Tianjin, Hebei, Inner Mongolia and other places have suffered from extreme precipitation. Meanwhile, a large scale persisting rainy weather happened in the southern China.
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