| 横断山中南部地区夏季热量平衡和水汽收支研究 |
| |
| 引用本文： | 麻益民,宋正山.横断山中南部地区夏季热量平衡和水汽收支研究[J].高原气象,1993,12(3):264-273. |
| |
| 作者姓名： | 麻益民 宋正山 |
| |
| 作者单位： | 中国科学院大气物理研究所 北京100080
(麻益民，宋正山)，中国科学院大气物理研究所 北京100080(高登义) |
| |
| 摘 要： |
|
| 关 键 词： | 横断山 季风 水汽输送 热量平衡 |
THE STUDY OF HEAT BALANCE AND MOISTURE BUDGET OVER THE SOUTH AND CENTRAL PART OF HENGDUAN MOUNTAINS IN CHINA DURING THE SUMMER OF 1985 |
| |
| Ma Yimin Song Zhengshan Gao Dengyi.THE STUDY OF HEAT BALANCE AND MOISTURE BUDGET OVER THE SOUTH AND CENTRAL PART OF HENGDUAN MOUNTAINS IN CHINA DURING THE SUMMER OF 1985[J].Plateau Meteorology,1993,12(3):264-273. |
| |
| Authors: | Ma Yimin Song Zhengshan Gao Dengyi |
| |
| Abstract: | The Hengduan mountains are located in the southeastern part of the Qinghai-Xizang Plateau. In this paper, we analysed the three dimensional dynamic and thermal structures of atmosphere and calculated the heat and moisture budget and transfer over the Hengduan mountains using the conventional meteorological data obtained in a special observation period from 5 June to 4 August, 1985. The computational domain is a area occupied by six stations, among them the three stations were new setted.
Our results show that the south-westerly flow connected with the Indian SW summer monsoon brings moisture into this region and produces rainfall. There is a moisture channel over this region to transfer water vapor from south-west to the inner China.
There exist strong dynamical cyclonic relative vorticity in the lower layer and anticyclonic vorticity in upper troposphere. The upward motion dominates throughout the whole troposphere due to the forcing effect of the topography and the local dynamical convergence in low levels.
It has been explored that there are obvious heat source and moisture sink showing importance of the latent heat released by condensation process over the Hengduan mountains which is consistent with the characters of the atmospheric structure. The formation of the heat source is favorable to the maintenance of the anticyclone in the upper layer. A climatic high frequency appearance center of the upper anticyclone has just been found in or near the area of Hengduan mountains. |
| |
| Keywords: | Hengduan mountains Monsoon Budget Vapor transfer |
| 本文献已被 CNKI 维普 等数据库收录！ |
