ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 40 Issue 10 > 2014,40(10):1286-1292. DOI:10.7519/j.issn.1000-0526.2014.10.014 Prev Next
Analysis of the July 2014 Atmospheric Circulation and Weather
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Abstract:
The main characteristics of the general atmospheric circulation in July 2014 are listed as follows: there is one polar vortex center in the Northern Hemisphere. In the mid high latitudes, the circulation presents a five wave pattern among which the troughs near Balkhash Lake and in the East Asia are stronger than their climatological mean. The subtropical high shows the distribution of east west belt and its intensity is equivalent to its average state during the corresponding time of the normal years. Meanwhile, monthly mean precipitation amount is 115.0 mm, which is 4.6% less than its climatological mean (120.6 mm). Monthly mean temperature is 22.3℃, higher than its climatological mean (21.9℃). There are 8 severe rainfall events with extreme precipitation records observed at some stations in China. Five tropical cyclones are active over the northwestern Pacific Ocean and the South China Sea, and two of them land China. Long lasting high temperature events occur in South China and Yangtze River region while extreme high temperature events happen at 87 stations and extreme heavy rainfall events at 74 stations in China.
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