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DOI | 10.1007/s00254-007-1100-4 |
Seasonal deuterium excess in Nagqu precipitation: influence of moisture transport and recycling in the middle of Tibetan Plateau | |
Liu, Zhongfang; Tian, Lide; Yao, Tandong; Yu, Wusheng | |
发表日期 | 2008 |
ISSN | 0943-0105 |
卷号 | 55期号:7页码:1501-1506 |
英文摘要 | A total of 198 precipitation samples were collected at Nagqu on the central Tibetan Plateau in 2000. Based on the isotope data from individual samples, the local meteoric water line was established: delta D = 7.7 delta(18)O-4.6 (r(2 =) 96, p < 0.0001). Stable isotope data from precipitation exhibit a seasonal variability in deuterium excess. The study indicated that the influence of moisture transport and recycling on seasonal variation of d-excess in precipitation events is potentially significant. During summer precipitation, the lower d-excess values are usually related to warm and humid Indian Ocean moisture transport. In spring and winter, due to the cold and dry westerly and northern moisture transport, d-excess values in precipitation are usually higher. The d-excess in summer precipitation is also influenced by the secondary evaporation between cloud base and ground during precipitation events, as well as the admixture of water vapor from evapotranspiration over the continent along the storm trajectories. The results also suggested that the d-excess values in precipitation at Nagqu displayed an obvious transition due to its location on the central Tibetan Plateau. |
英文关键词 | stable isotope;d-excess;moisture transport and recycling;Nagqu |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS记录号 | WOS:000258931300013 |
来源期刊 | ENVIRONMENTAL GEOLOGY |
来源机构 | 中国科学院青藏高原研究所 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/415 |
推荐引用方式 GB/T 7714 | Liu, Zhongfang,Tian, Lide,Yao, Tandong,et al. Seasonal deuterium excess in Nagqu precipitation: influence of moisture transport and recycling in the middle of Tibetan Plateau[J]. 中国科学院青藏高原研究所,2008,55(7):1501-1506. |
APA | Liu, Zhongfang,Tian, Lide,Yao, Tandong,&Yu, Wusheng.(2008).Seasonal deuterium excess in Nagqu precipitation: influence of moisture transport and recycling in the middle of Tibetan Plateau.ENVIRONMENTAL GEOLOGY,55(7),1501-1506. |
MLA | Liu, Zhongfang,et al."Seasonal deuterium excess in Nagqu precipitation: influence of moisture transport and recycling in the middle of Tibetan Plateau".ENVIRONMENTAL GEOLOGY 55.7(2008):1501-1506. |
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