ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 46 Issue 4 > 2020,46(4):575-580. DOI:10.7519/j.issn.1000-0526.2020.04.012 Prev Next
Analysis of January 2020 Atmospheric Circulation and Weather
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Abstract:
The following are the main characteristics of the general circulation of atmosphere in January 2020. There were two polar vortex centers in the Northern Hemisphere. The location of the East Asian trough was more eastward and northward than that in the same period of normal years, and the strength was weak. The monthly mean precipitation (23.3 mm) was 77% above normal, which is the second in January since 1961. The average temperature (-3.6℃) was 1.4℃ higher than in the normal years, and the cold air processes were weak. The foghaze weather in the central and eastern part of China occurred frequently and there were three largescale continuous foghaze processes, respectively in 3-5, 16-18 and 22-28 January. In addition, four precipitation processes appeared in the month.
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