气象Issue(5)：562-569,8.DOI:10.7519/j.issn.1000-0526.2014.05.006
干空气入侵对东北冷涡降水发展的影响
Impact of Dry Intrusion on the Cold Vortex Precipitation in Northeast
摘要
Abstract
For understanding the influence of dry intrusion on the precipitation of northeast cold vortex,a typical cold vortex over northeastern China on July 2011 was simulated by WRF model.The results show that:Dry intrusion has affected the cold vortex precipitation in two aspects.On the one hand,the dense air from upper level lifts the warm moist air ahead of dry intrusion,and as a consequence,it promotes the cold vortex precipitation;On the other hand,the forward moving of the descending cold air makes its front interface more steep and the atmospheric stratification instable,which helps to promote the vertical devel-opment of rain clouds.The cold voltex precipitation mainly concentrates below the central section of the rain clouds.关键词
东北冷涡/数值模拟/干空气入侵/降水Key words
northeast cold vortex (NECV)/numerical simulation/dry intrusion/precipitation分类
天文与地球科学引用本文复制引用
沈浩,杨军,祖繁,荣昕..干空气入侵对东北冷涡降水发展的影响[J].气象,2014,(5):562-569,8.基金项目
国家科技支撑计划课题（2012BAC23B01）和国家重点基础研究发展规划项目（2012CB955204）共同资助 （）
