1991年梅雨盛期垂直环流的分布特征  

DISTRIBUTION CHARACTERISTICS OF VERTICAL CIRCULATION DURING MEIYU PEAKS IN JULY 1991

作　　者：李国杰[1] 徐东明[1] 汪钟兴[1] 

机构地区：[1]安徽省气象科学研究所,中国科学技术大学地球和空间科学系,第三世界科学院中国科学技术大学地球科学和天文学高级研究中心

出　　处：《热带气象学报》1996年第1期65-71,共7页Journal of Tropical Meteorology

摘　　要：主要分析１９９１年７月梅雨盛期东亚大气垂直环流及其时空分布，着重从持续性强暴雨存在的垂直速度分布及其演变特征出发，揭示暴雨带摆动的机理和依据，并总结出一个经向垂直环流发展的概念模型。进一步利用这些物理量在梅雨锋区的特征，制作雨带摆动及其强度的预报。In this paper, the atmospheric vertical circulation and its temporal-spatial distributions in and around eastern China during the Meiyu period July 1991, are analysed. By use of the statistical characteristics of vertical velocity distribution with bands of Persistent heavy rainfall, the mechanism and causes by which the rain bands fluctuate are easily understanded, and then a conceptual mode of the development of meridional vertical circulation is established. Furthermore,by use of the featureS of physiCal quantity in the Meiyu frontal zone, 24-hour predictions of rainstorm band movement and precipitational intensity are made.

关 键 词：垂直环流 概念模型 梅雨 分布特征 大气环流 

分 类 号：P434[天文地球—大气科学及气象学]