ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 45 Issue 1 > 2019,45(1):135-140. DOI:10.7519/j.issn.1000-0526.2019.01.012 Prev Next
Analysis of the October 2018 Atmospheric Circulation and Weather
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Abstract:
The main characteristics of the general atmospheric circulation in October 2018 are as follows. Over the Northern Hemisphere, the polar vortex showed a dipole pattern. The circulation presented a fourwave pattern in middlehigh latitudes. The western Pacific subtropical high extented remarkably more westward than normal. The monthly mean precipitation amount was 28.1 mm, which is 21.6% less than normal (35.8 mm). The monthly mean temperature was 9.9℃, 0.4℃ lower than normal (10.3℃), ranking the lowest since 2002. There was no largerange heavy rainfall processes over China. There were five cold air processes, more than usual, and two fog and haze events in the region of BeijingTianjinHebei, which were also weaker than usual. There was no landfall typhoon in October 2018.
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