气象2011，Vol.37Issue(7)：863-870,8.
“070304”东北特大暴雪的分析
Analysis of the 4 March 2007 Heavy Snowstorm in Northeast China
摘要
Abstract
In this paper,the synoptic background,the non-geostropic Q-vector contribution and the phase change of the conditions are analyzed in the process of heavy snowstorm and heavy rain in Northeast China during March 3-6,2007.The results have shown that：a wide range and strong southerly jet is not only a strong water vapor belt,but also the necessary conditions for the lower front and low-level system to strengthen and move;the forcing of secondary circulation in the torrential rain plays an important role in the occurrence and development of process,its strength is directly related with the rainfall intensity.The level of cloud systems and whereabouts in the process of stratification state of the lower front to a certain extent determine the phase state of precipitation on the ground.Deep strong front zone,Jiang-Huai cyclones, low-level jet,and the intensity of nongeostrophic Q vector are closely related with the location of precipitation band and its intensity.关键词
暴雪/暴雨/天气学分析/湿Q矢量/降水相态Key words
heavy snowstorm/heavy rain/analysis of synoptic patterns/wet Q-vector/phase of precipitation分类
天文与地球科学引用本文复制引用
孙欣,蔡芗宁,陈传雷,贾旭轩,乔小湜..“070304”东北特大暴雪的分析[J].气象,2011,37(7):863-870,8.基金项目
中国气象局新技术推广项目（CMATG2006Y02）资助 （）
