ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 42 Issue 10 > 2016,42(10):1283-1288. DOI:10.7519/j.issn.1000-0526.2016.10.014 Prev Next
Analysis of the July 2016 Atmospheric Circulation and Weather
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Abstract:
The following are the main characteristics of the general circulation of atmosphere in July 2016. There was a single polar vortex center with eccentricity features in the Northern Hemisphere, and the strength of the polar vortex was stronger than normal. The midhigh latitude circulation distributes in a 4wave pattern. The strength of subtropical high in the Northern Hemisphere was stronger than usual, the location of northwestern Pacific subtropical high was by south and the ridge line oscillated greatly. In July, the monthly mean temperature of China is 22.6℃, 0.7℃ higher than usual. The monthly mean precipitation of China is 131.8 mm in July, 9.3% higher than usual, and much more significant in North China, Jianghuai and Jiangnan regions. The heavy precipitation processes in July were mainly in North China and southern China, and there were eight regional torrential rain processes. What’s more, the rainstorm from 18 to 22 July broke the extreme values in historic records in many aspects. Four typhoons formed in the Northwest Pacific in July, of which three were active and two of them landed in China. The forming time of the first typhoon in 2016 is the second latest in records since 1949. In addition, drought occurred in the northeast of Inner Mongolia region; heat wave continued in Middle China, East China and Xinjiang Region, lasting as long as 11 days and affecting 1075 observation stations. The extreme high temperature was found in Turpan, being 46.8℃.
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