Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2017, Vol. 7 ›› Issue (10): 90-95.doi: 10.11923/j.issn.2095-4050.cjas16100006

Special Issue: 现代农业发展与乡村振兴 农业气象

Previous Articles     Next Articles

A Cold Wave Weather in West Shandong Plain in 2016: Diagnostic Analysis and Its Impact on Agriculture

纪凡华,韩风军, and   

  • Received:2016-10-10 Revised:2017-05-30 Accepted:2017-06-21 Online:2017-10-23 Published:2017-10-23

Abstract: The paper aims to analyze the circulation condition and physical variable field of a cold wave process happened at Liaocheng on January 22 to 24, 2016, through the analysis of conventional observation and satellite cloud image, we summarize the cold wave process change and its effect on agriculture. The results suggest that warm Atlantic ridge extended eastward at high latitude, forced the weak Ural mountain ridge to form the Ural blocking high, which is a favorable condition for the development of cold air; near surface cold high pressure dominates, strong wind occurred and air temperature decreased continuously during this cold wave process because of the effect of strong cold convection, moreover, well water vapor condition provide a favorable condition for snowfall; one broad sheet cloud band before the transversal trough line located in Shanxi, Shanxi and middle Hebei on the satellite cloud image caused snowfall weather, back edge of the cloud band became smooth after transversal trough changing to the vertical, which indicated strong surface cloud high pressure.