Analysis on Callses of Winter Anomaly Weather in Jinzhou during 2009-2010
2011
[Objective] The aim was to study the causes of abnormal weather in winter in 2009 and 2010 in Jinzhou.[Method] By dint of regular meteorological data and weather theory,the abnormal weather in winter from 2009 to 2010 in Jinzhou was expounded so as to find the reasons for abnormal climate in winter in the region.[Result] The main reason for the consecutive low temperature in winter in Jinzhou from 2009 to 2010 was the abnormal development of the Ural Mountains high-pressure ridge and strong horizontal circulation.The frequent cold air activity was the leading reason for the increase of precipitation in Jinzhou in winter;the high trough and low air torrent were the main weather system for precipitation.Convergence in the low layer was the dynamic condition for the generation of precipitation.[Conclusion] The study provided theoretical basis for the disaster prevention and mitigation work in winter.
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