globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2017.12.034
Scopus记录号: 2-s2.0-85040593211
论文题名:
Changes in Tibetan Plateau latitude as an important factor for understanding East Asian climate since the Eocene: A modeling study
作者: Zhang R.; Jiang D.; Ramstein G.; Zhang Z.; Lippert P.C.; Yu E.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 484
起始页码: 295
结束页码: 308
语种: 英语
英文关键词: East Asian monsoon ; latitude & paleogeography ; surface uplift ; Tibetan Plateau
Scopus关键词: Tropics ; Climate sensitivity ; Climate simulation ; Crucial parameters ; East Asian monsoon ; Paleogeographic reconstruction ; Paleogeography ; Precipitation patterns ; Tibetan Plateau ; Atmospheric thermodynamics ; climate modeling ; Eocene ; latitude ; monsoon ; paleoclimate ; paleogeography ; precipitation (climatology) ; uplift ; China ; Himalayas ; Qinghai-Xizang Plateau
英文摘要: Previous climate modeling studies suggest that the surface uplift of the Himalaya–Tibetan plateau (TP) is a crucial parameter for the onset and intensification of the East Asian monsoon during the Cenozoic. Most of these studies have only considered the Himalaya–TP in its present location between ∼26°N and ∼40°N despite numerous recent geophysical studies that reconstruct the Himalaya–TP 10° or more of latitude to the south during the early Paleogene. We have designed a series of climate simulations to explore the sensitivity of East Asian climate to the latitude of the Himalaya–TP. Our simulations suggest that the East Asian climate strongly depends on the latitude of the Himalaya–TP. Surface uplift of a proto-Himalaya–TP in the subtropics intensifies aridity throughout inland Asia north of ∼40°N and enhances precipitation over East Asia. In contrast, the rise of a proto-Himalaya–TP in the tropics only slightly intensifies aridity in inland Asia north of ∼40°N, and slightly increases precipitation in East Asia. Importantly, this climate sensitivity to the latitudinal position of the Himalaya–TP is non-linear, particularly for precipitation across East Asia. The simulated precipitation patterns across East Asia are significantly different between our scenarios in which a proto-plateau is situated between ∼11°N and ∼25°N and between ∼20°N and ∼33°N, but they are similar when the plateau translates northward from between ∼20°N and ∼33°N to its modern position. Our simulations, when interpreted in the context of climate proxy data from Central Asia, support geophysically-based paleogeographic reconstructions in which the southern margin of a modern-elevation proto-Himalaya–TP was located at ∼20°N or further north in the Eocene. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110077
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Climate Change Research Center, Chinese Academy of Sciences, Beijing, 100029, China; Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Nansen–Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China; Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA-CNRS-UVSQ, UMR8212, Orme des Merisiers, CE Saclay, Gif-sur-Yvette Cedex, 91191, France; Uni Research Climate, Uni Research and Bjerknes Centre for Climate Research, Bergen, 5007, Norway; Department of Geology & Geophysics, University of Utah, Salt Lake City, 84112, United States; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, 210044, China

Recommended Citation:
Zhang R.,Jiang D.,Ramstein G.,et al. Changes in Tibetan Plateau latitude as an important factor for understanding East Asian climate since the Eocene: A modeling study[J]. Earth and Planetary Science Letters,2018-01-01,484
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