珲春市2015年2月25—26日强降雪天气过程分析  

Analysis on Heavy Snow-fall Weather Process of Hunchun City in February 25^(th)—26^(th),2015

作　　者：许大伟 郭婧芝 吴越 XU Da-wei et al(Meteorological Bureau of Hunchun City in Jilin Province, Hunchun, Jilin 133300)

机构地区：[1]吉林省珲春市气象局,吉林珲春133300

出　　处：《农业灾害研究》2016年第9期39-40,共2页Journal of Agricultural Catastrophology

摘　　要：2015年2月25—26日,珲春市出现明显的强降雪天气。利用常规气象观测资料、高空探测资料等对此次暴雪天气的环流形势、物理量等进行分析,得出此次暴雪天气属于气旋发展型,蒙古低涡发展,低涡不断加强,大量冷空气南下,与北上暖湿空气交汇提供充足水汽条件,槽后冷平流发展较强,地面蒙古气旋持续维持,低层辐合、高层辐散引发强烈的上升运动,从而形成了大到暴雪天气过程。A heavy snowfall weather process appeared in Hunchun City during February 25th-26th, 2015. The circulation situation and physical quantity field of this heavy snowfall weather were analyzed,, using conventional observation data, sounding data and so on. The resuits showed that this blizzard weather was ：a cyclone development. MOngolia vortex developed and vortex continued to strengthen, and a large numbei of cold air south, north and warm air to meet the water to provide sufficient conditions. Cold advection after the slot developed strongly, the ground mongolia cyclone sustained. Low-level convergence, high- level divergence caused by a strong up-ward movement, which formed a large snowstorm process.

关 键 词：强降雪 天气过程 珲春市 

分 类 号：S161[农业科学—农业气象学]