气候变化领域集成服务门户(CCPortal): A new global ice sheet reconstruction for the past 80 000 years

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DOI	10.1038/s41467-021-21469-w
	A new global ice sheet reconstruction for the past 80 000 years
	Gowan E.J.; Zhang X.; Khosravi S.; Rovere A.; Stocchi P.; Hughes A.L.C.; Gyllencreutz R.; Mangerud J.; Svendsen J.-I.; Lohmann G.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The evolution of past global ice sheets is highly uncertain. One example is the missing ice problem during the Last Glacial Maximum (LGM, 26 000-19 000 years before present) – an apparent 8-28 m discrepancy between far-field sea level indicators and modelled sea level from ice sheet reconstructions. In the absence of ice sheet reconstructions, researchers often use marine δ18O proxy records to infer ice volume prior to the LGM. We present a global ice sheet reconstruction for the past 80 000 years, called PaleoMIST 1.0, constructed independently of far-field sea level and δ18O proxy records. Our reconstruction is compatible with LGM far-field sea-level records without requiring extra ice volume, thus solving the missing ice problem. However, for Marine Isotope Stage 3 (57 000-29 000 years before present) - a pre-LGM period - our reconstruction does not match proxy-based sea level reconstructions, indicating the relationship between marine δ18O and sea level may be more complex than assumed. © 2021, The Author(s).
语种	英语
scopus关键词	carbon 14; carbon dioxide; oxygen; global change; ice sheet; Last Glacial Maximum; proxy climate record; reconstruction; sea level change; uncertainty analysis; Article; controlled study; deep sea; geometry; ice sheet; last glacial maximum; lithosphere; North American; Pleistocene; river; sea level; shear stress; viscosity
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251521
作者单位	Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany; MARUM, University of Bremen, Bremen, Germany; Center for Pan Third Pole Environment (Pan-TPE), Key Laboratory of Western China’s Environmental Systems, (Ministry of Education), College of Earth and Environmental Science, Lanzhou University, Lanzhou, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences (CAS), Beijing, China; Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Potsdam, Germany; NIOZ, Texel, Netherlands; Department of Geography, University of Manchester, Manchester, United Kingdom; Department of Earth Science, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway; Department of Geological Sciences, Stockholm University, Stockholm, Sweden
推荐引用方式 GB/T 7714	Gowan E.J.,Zhang X.,Khosravi S.,et al. A new global ice sheet reconstruction for the past 80 000 years[J],2021,12(1).
APA	Gowan E.J..,Zhang X..,Khosravi S..,Rovere A..,Stocchi P..,...&Lohmann G..(2021).A new global ice sheet reconstruction for the past 80 000 years.Nature Communications,12(1).
MLA	Gowan E.J.,et al."A new global ice sheet reconstruction for the past 80 000 years".Nature Communications 12.1(2021).