气象Issue(4)：400-411,12.DOI:10.7519/j.issn.1000-0526.2014.04.002
中国中东部强对流天气的天气形势分类和基本要素配置特征
Basic Synoptic Situation Classification and Element Character of Severe Convection in China
摘要
Abstract
Based on the synoptic environment analysis of about 100 severe convection cases in China since 2000 and the reference of related literatures,from the perspectives of the three essential conditions for the development of severe convection,namely the thermal instability,lift and moisture,five basic synoptic sit-uation configurations of severe convection in China are proposed and expounded.They are cold advection forcing category,warm advection forcing category,baroclinic frontogenesis category,quasi-barotropic cat-egory and elevated thunderstorm category.The typical characteristics of the upper cold advection forcing category is that the mid-upper strong cold advection above 500 hPa strengthens and reaches the boundary warm convergence zone.The warm advection forcing category is characterized by trough with special structure moving over low-level strong warm and moist advection.The deep convection produced by the mid-lower layer convergence of cold and warm air features the baroclinic frontogenesis category.The quasi-barotropic category mostly occurs at the northern and the southern edges or the interior of summer sub-tropical high and the area with weak baroclinicity,where the dynamic forcing and the surface inhomoge-neous local heating play major roles.The features of elevated thunderstorms are the southwest jet in 700-500 hPa lifted by boundary cold wedge and the instable energy is from above 700 hPa.The classification based on the difference of the formation mechanisms can grasp accurately the synoptic characteristics,the situation configurations,the dynamic and thermal properties and the key points in analyzing short-term po-tential forecast,providing more technical support to further enhance the level of weather prediction.关键词
强对流天气/形势配置/平流/锋生/高架对流Key words
severe convection/synoptic situation configuration/advection/frontogenesis/elevated convec-tion分类
天文与地球科学引用本文复制引用
许爱华,孙继松,许东蓓,万雪丽,郭艳..中国中东部强对流天气的天气形势分类和基本要素配置特征[J].气象,2014,(4):400-411,12.基金项目
国家科技部十二五科技支撑计划项目（2012BAK09B04）、公益性行业（气象）科研专项（GYHY201006002）和全国强对流预报专家团队共同资助 （）
