气象Issue(5)：613-621,9.DOI:10.7519/j.issn.1000-0526.2015.05.009
山东半岛冷流强降雪和非冷流强降雪的对比分析
Comparative Analysis of Cold-Air Snowstorm and Non-Cold-Air Snowstorm in Shandong Peninsula
摘要
Abstract
According to the conventional meteorological observation over the period 1981-2000 and NCEP/NCAR reanalysis data,coupled with synthetic analysis and power diagnostic analysis method,the paper il-lustrates the spatial distribution of cold-air snowstorm and non-cold-air snowstorm,atmospheric circula-tion,vapor transportation,stability and vertical motion and does comparative analysis.The results indi-cate that cold-air snowstorms are meso- and micro-scale snowfalls which occur in the northwest air flow be-hind trough,while the non-cold-air snowstorms tend to occur in southwest air flow in front of trough,u-sually large-scale snowfalls.Cold-air snowstorms have distinct local characteristics,resulting from the re-sponse of strong cold air to the physical condition of underlying surface.In addition,this paper proposes that the unstability of atmospheric boundary caused by the strong interaction of cold and warm waters of the Bohai Sea is the nature of cold-air snowfalls,and the snowfalls occurring in such unstable stratification of boundary layer is the concept of cold-air snowfalls.关键词
山东半岛/冷流降雪/对比分析/海气相互作用/冷流降雪概念Key words
Shandong Peninsula/cold-air snowstorm/comparative analysis/air-sea interaction/concept of cold-air snowfall分类
天文与地球科学引用本文复制引用
李丽,张丰启,施晓晖..山东半岛冷流强降雪和非冷流强降雪的对比分析[J].气象,2015,(5):613-621,9.基金项目
国家自然科学基金面上项目（41275050）资助 （）
