Late quaternary climate, precipitation δ18O, and Indian monsoon variations over the Tibetan Plateau
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- 作者：Jingmin Lia ; c ; Todd A. Ehlersa ; todd.ehlers@uni-tuebingen.de" class="auth_mail" title="E-mail the corresponding author ; Martin Wernerb ; Sebastian G. Mutza ; Christian Stegerc ; Heiko Paethc
- 关键词：Tibet ; precipitation δ18O ; monsoon intensity ; mid-Holocene ; Last Glacial Maximum ; GCM
- 刊名：Earth and Planetary Science Letters
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：457
- 期：Complete
- 页码：412-422
- 全文大小：3910 K
文摘
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The results document significant changes in Tibetan climate and δ18Op since ∼21 ka BP.
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Model and proxy data comparison shows a good agreement for the LGM, but large differences for the MH.
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The elevation-δ18Op isotope lapse rate is found to vary both spatially and temporally.
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The change of precipitation type to snow during the LGM can cause up to 4‰ changes in δ18Op.
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Rainfall associated with the Indian monsoon was ∼44% less and ∼1 month shorter in the LGM than the PI.