Changes in Moisture Flux over the Tibetan Plateau during 1979-2011 and Possible Mechanisms (SCI)
文献类型：期刊论文
| 作者 | Gao Y. H. ; Cuo L. ; Zhang Y. X. |
| 刊名 | Journal of Climate
 |
| 出版日期 | 2014 |
| 卷号 | 27期号:5页码:1876-1893 |
| 英文摘要 | Changes in moisture as represented by P - E (precipitation - evapotranspiration) and the possible causes over the Tibetan Plateau (TP) during 1979-2011 are examined based on the Global Land Data Assimilation Systems (GLDAS) ensemble mean runoff and reanalyses. It is found that the TP is getting wetter as a whole but with large spatial variations. The climatologically humid southeastern TP is getting drier while the vast arid and semiarid northwestern TP is getting wetter. The Clausius-Clapeyron relation cannot be used to explain the changes in P - E over the TP. Through decomposing the changes in P - E into three major components-dynamic, thermodynamic, and transient eddy components-it is noted that the dynamic component plays a key role in the changes of P - E over the TP. The thermodynamic component contributes positively over the southern and central TP whereas the transient eddy component tends to reinforce (offset) the dynamic component over the southern and parts of the northern TP (central TP). Seasonally, the dynamic component contributes substantially to changes in P - E during the wet season, with small contributions from the thermodynamic and transient eddy components. Further analyses reveal the poleward shift of the East Asian westerly jet stream by 0.7 degrees and poleward moisture transport as well as the intensification of the summer monsoon circulation due to global warming, which are shown to be responsible for the general wetting trend over the TP. It is further demonstrated that changes in local circulations that occur due to the differential heating of the TP and its surroundings are responsible for the spatially varying changes in moisture over the TP. |
| 收录类别 | SCI |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.casnw.net/handle/362004/25069]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao Y. H.,Cuo L.,Zhang Y. X.. Changes in Moisture Flux over the Tibetan Plateau during 1979-2011 and Possible Mechanisms (SCI)[J]. Journal of Climate,2014,27(5):1876-1893. |
| APA | Gao Y. H.,Cuo L.,&Zhang Y. X..(2014).Changes in Moisture Flux over the Tibetan Plateau during 1979-2011 and Possible Mechanisms (SCI).Journal of Climate,27(5),1876-1893. |
| MLA | Gao Y. H.,et al."Changes in Moisture Flux over the Tibetan Plateau during 1979-2011 and Possible Mechanisms (SCI)".Journal of Climate 27.5(2014):1876-1893. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。