| 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。 |
| 关键词: 垂直环流 暴雨带 概念模型 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| DISTRIBUTION CHARACTERISTICS OF VERTICAL CIRCULATION DURING MEIYU PEAKS IN JULY 1991 |
|
Li Guojie1, Xu Dongming1, Wang Zhongxing2
|
|
1.Department of Earth and Space Sciences, University of Science and Tenology of China, Hefei 230026, China;2.Advanced Centre for Earth Sciences and Astrongmy, University of Science and Technology of China, Third World Academy of Science
|
| Abstract: |
| 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. |
| Key words: Vertical circulation Rainfall band Conceptional mode |
