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Influence of the Indian monsoon and the subtropical jet on climate change on the Tibetan Plateau since the late Pleistocene
Hou, JZ (Hou, Juzhi)1; D'Andrea, WJ (D'Andrea, William J.)2; Wang, MD (Wang, Mingda)1; He, Y (He, Yue)1,3,4; Liang, J (Liang, Jie)1,5; Hou, JZ
Source PublicationQUATERNARY SCIENCE REVIEWS
2017
Volume163Issue:0Pages:84-94
DOI10.1016/j.quascirev.2017.03.013
AbstractPrecipitation atop the Tibetan Plateau (TP) is delivered by the Indian summer monsoon, the Asian summer monsoon, and weather systems associated with the subtropical westerly jet. Variations in the relative importance of the monsoon systems and the westerly jet are hypothesized to have occurred at decadal, millennial and glacial-interglacial scales. However, paleoclimate observations based on explicit climate proxies are still scarce, limiting our understanding of the mechanisms of Holocene climate variability on the Tibetan Plateau (TP). Here we present three independently dated compound specific hydrogen isotope records of sedimentary leaf waxes from lakes on the TP, Bangong Co, Lake Qinghai and Linggo Co. The leaf wax delta D records reflect isotopes in precipitation, and we combine these observations with existing isotopic and hydrological data to investigate variations in the influence of the summer monsoon and the westerly jet on the moisture budget of the TP since the Late Pleistocene. delta D values of precipitation at all three lakes were relatively positive during the Late Pleistocene indicating a weakened summer monsoon. During the early and mid-Holocene, delta D values of precipitation at the three lakes were relatively negative, suggesting the importance of summer monsoon. During the middle to late Holocene, delta D values at Bangong Co and Lake Qinghai gradually increased with superimposed episodes of short term of delta D variability. However, at Linggo Co in the northern TP, periods of more positive delta D values of precipitation correspond to wetter intervals inferred from lake level high stands, and likely reflect variations in moisture associated with the westerly jet. Thus, the delta D records at Linggo Co imply the lesser importance of summer monsoon moisture in the hydrologic budget of the northern TP. Collectively, the hydrogen isotope records at these three lakes document millennial and centennial scale variations in the strength of the summer monsoon systems and concurrent changes in the westerly jet. Furthermore, millennial-scale fluctuations in the delta D records at the three lakes during the middle to late Holocene suggest episodes of reduced summer monsoonal moisture delivery to these regions, and correspond with intervals of cool sea surface temperatures in the North Atlantic. (C) 2017 Elsevier Ltd. All rights reserved.
Subject Area自然地理学
WOS IDWOS:000401204200005
Language英语
Indexed BySCI
KeywordINTERTROPICAL CONVERGENCE ZONE HOLOCENE ENVIRONMENTAL-CHANGES BASIN WESTERN TIBET NORTH-ATLANTIC CLIMATE QINGHAI LAKE AREA ASIAN MONSOON STABLE-ISOTOPES DELTA-D HIGH-RESOLUTION N-ALKANES
WOS Research AreaPhysical Geography; Geology
WOS SubjectGeography, Physical; Geosciences, Multidisciplinary ; Physical Geography; Geology
Cooperation Status国际
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8252
Collection图书馆
Corresponding AuthorHou, JZ
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
2.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
3.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China.
4.Hebei Geo Univ, Shiijiazhuang 050031, Peoples R China.
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Hou, JZ ,D'Andrea, WJ ,Wang, MD ,et al. Influence of the Indian monsoon and the subtropical jet on climate change on the Tibetan Plateau since the late Pleistocene[J]. QUATERNARY SCIENCE REVIEWS,2017,163(0):84-94.
APA Hou, JZ ,D'Andrea, WJ ,Wang, MD ,He, Y ,Liang, J ,&Hou, JZ.(2017).Influence of the Indian monsoon and the subtropical jet on climate change on the Tibetan Plateau since the late Pleistocene.QUATERNARY SCIENCE REVIEWS,163(0),84-94.
MLA Hou, JZ ,et al."Influence of the Indian monsoon and the subtropical jet on climate change on the Tibetan Plateau since the late Pleistocene".QUATERNARY SCIENCE REVIEWS 163.0(2017):84-94.
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