Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM
文献类型：SCI/SSCI论文
| 作者 | Zhu L. P.; Lu, X. M.; Wang, J. B.; Peng, P.; Kasper, T.; Daut, G.; Haberzettl, T.; Frenzel, P.; Li, Q.; Yang, R. M. |
| 发表日期 | 2015 |
| 关键词 | last glacial maximum north-atlantic summer monsoon nam-co indian monsoon asian monsoon sediments precipitation pollen china |
| 英文摘要 | The Tibetan Plateau (TP) is primarily influenced by the northern hemispheric middle latitude Westerlies and the Indian summer monsoon (ISM). The extent, long-distance effects and potential long-term changes of these two atmospheric circulations are not yet fully understood. Here, we analyse modern airborne pollen in a transition zone of seasonally alternating dominance of the Westerlies and the ISM to develop a pollen discrimination index (PDI) that allows us to distinguish between the intensities of the two circulation systems. This index is applied to interpret a continuous lacustrine sedimentary record from Lake Nam Co covering the past 24 cal kyr BP to investigate long-term variations in the atmospheric circulation systems. Climatic variations on the central TP widely correspond to those of the North Atlantic (NA) realm, but are controlled through different mechanisms resulting from the changing climatic conditions since the Last Glacial Maximum (LGM). During the LGM, until 16.5 cal kyr BP, the TP was dominated by the Westerlies. After 16.5 cal kyr BP, the climatic conditions were mainly controlled by the ISM. From 11.6 to 9 cal kyr BP, the TP was exposed to enhanced solar radiation at the low latitudes, resulting in greater water availability. |
| 出处 | Scientific Reports |
| 卷 | 5 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 2045-2322 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38539]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhu L. P.,Lu, X. M.,Wang, J. B.,et al. Climate change on the Tibetan Plateau in response to shifting atmospheric circulation since the LGM. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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