| 夏季热带经向环流双圈结构的观测研究 |
| |
| 引用本文： | 黄真,陶诗言.夏季热带经向环流双圈结构的观测研究[J].应用气象学报,1990,1(3):271-278. |
| |
| 作者姓名： | 黄真 陶诗言 |
| |
| 作者单位： | 1.中国科学院大气物理研究所
(黄真)，中国科学院大气物理研究所(陶诗言) |
| |
| 摘 要： | 本文利用1980—1983年7月ECMWF资料，分析了夏季热带地区经向环流的结构及它们的区域和年际差异。指出夏季热带经向环流具有双圈结构。在季风区，对流层下部为季风环流，在非季风区，为Hadley环流；对流层上部存在一独立的环流圈，季风区的中心偏北半球，非季风区的中心偏南半球；热带经向环流的双圈结构在一般年份均存在，但在异常年份（1983年），强大的垂直运动将对流层上、下部两个相对独立的环流圈紧密连接起来，成为整层统一的大范围季风环流。
|
Observational Study on the Two–cell Structure of Tropical Meridional Circulation in Summer |
| |
| Affiliation: | (Institute of Atmospheric Physics, Academia Sinica) |
| |
| Abstract: | The structure of tropical meridional circulation in summer and its regional differences and interannual variations are studied by using the July 1980—1983 ECMWF data. It is found that the tropical meridional circulation show a two-cell structure. In the lower troposphere, there are monsoon circulation in the monsoon region and Hadley circulations in the non-monsoon region; while in the upper troposphere, there is an independent circulation in both monsoon and non-monsoon regions, with its center located in the Northern Hemisphere for monsoon region and in the Southern Hemisphere for non-monsoon region. This two-cell structure always exists in normal years. However, in the abnormal year (1983), the circulation in the upper troposphere is much weaker and can hardly be recognized, and the strong vertical motion results in a one-cell meridional circulation throughout the troposphere. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《应用气象学报》浏览原始摘要信息 |
|
点击此处可从《应用气象学报》下载全文 |
|
