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| DOI | 10.1175/2010JCLI3736.1 |
| Precipitation Water Stable Isotopes in the South Tibetan Plateau: Observations and Modeling | |
| Gao, Jing; Masson-Delmotte, V.; Yao, T.; Tian, L.; Risi, C.; Hoffmann, G. | |
| 通讯作者 | Gao, J (通讯作者) |
| 发表日期 | 2011 |
| ISSN | 0894-8755 |
| EISSN | 1520-0442 |
| 起始页码 | 3161 |
| 结束页码 | 3178 |
| 卷号 | 24期号:13 |
| 英文摘要 | Measurements of precipitation isotopic composition have been conducted on a daily basis for 1 yr at Bomi, in the southeast Tibetan Plateau, an area affected by the interaction of the southwest monsoon, the westerlies, and Tibetan high pressure systems, as well as at Lhasa, situated west of Bomi. The measured isotope signals are analyzed both on an event basis and on a seasonal scale using available meteorological information and airmass trajectories. The processes driving daily and seasonal isotopic variability are investigated using multidecadal climate simulations forced by twentieth-century boundary conditions and conducted with two different isotopic atmospheric general circulation models [the isotopic version of the Laboratoire de Meteorologie Dynamique GCM (LMDZiso) and the ECHAM4iso model]. Both models use specific nudging techniques to mimic observed atmospheric circulation fields. The models simulate a wet and cold bias on the Tibetan Plateau together with a dry bias in its southern part. A zoomed LMDZ simulation conducted with similar to 50-km local spatial resolution dramatically improves the simulation of isotopic compositions of precipitation on the Tibetan Plateau. Simulated water isotope fields are compared with new data and with previous observations, and regional differences in moisture origins are analyzed using back-trajectories. Here, the focus is on relationships between the water isotopes and climate variables on an event and seasonal scale and in terms of spatial and altitudinal isotopic gradients. Enhancing the spatial resolution is crucial for improving the simulation of the precipitation isotopic composition. |
| 关键词 | GENERAL-CIRCULATION MODELASIAN SUMMER MONSOONATMOSPHERIC CIRCULATIONMOISTURE TRANSPORTCLIMATE MODELCUMULUS CONVECTIONARABIAN SEAO-18VARIABILITYDELTA-O-18 |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000292590500002 |
| 来源期刊 | JOURNAL OF CLIMATE
 |
| 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/257957 |
| 推荐引用方式 GB/T 7714 | Gao, Jing,Masson-Delmotte, V.,Yao, T.,et al. Precipitation Water Stable Isotopes in the South Tibetan Plateau: Observations and Modeling[J]. 中国科学院青藏高原研究所,2011,24(13). |
| APA | Gao, Jing,Masson-Delmotte, V.,Yao, T.,Tian, L.,Risi, C.,&Hoffmann, G..(2011).Precipitation Water Stable Isotopes in the South Tibetan Plateau: Observations and Modeling.JOURNAL OF CLIMATE,24(13). |
| MLA | Gao, Jing,et al."Precipitation Water Stable Isotopes in the South Tibetan Plateau: Observations and Modeling".JOURNAL OF CLIMATE 24.13(2011). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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