气候变化领域集成服务门户(CCPortal): Impacts of extremely asymmetrical polar ice sheets on the East Asian summer monsoon during the MIS-13 interglacial

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DOI	10.1016/j.quascirev.2020.106164
	Impacts of extremely asymmetrical polar ice sheets on the East Asian summer monsoon during the MIS-13 interglacial
	Shi F.; Yin Q.; Nikolova I.; Berger A.; Ramstein G.; Guo Z.
发表日期	2020
ISSN	0277-3791
卷号	230
英文摘要	Marine Isotope Stage (MIS) 13 (∼500 ka ago) was a relatively weak interglacial according to the benthic δ18O and Antarctic ice core records. However, proxy records from the Northern Hemisphere indicate that MIS-13 was at least as warm as or even warmer than more recent interglacials, with an extremely strong summer monsoon and possible melting of the Greenland ice sheet. In this study, assuming an asymmetric hemispheric climate, we investigate the response of the East Asian summer monsoon to various Greenland and Antarctic ice sheet sizes using a set of sensitivity experiments with the HadCM3 model through factor separation analysis. Results show that with no Greenland ice sheet and a large Antarctic ice sheet there is an enhancement of summer monsoon precipitation in the East Asian monsoon region of up to ∼7%, in agreement with the direction of change from proxy reconstructions for China. This enhancement is associated with a stronger land–sea thermal contrast, more water vapor transport to East Asia and a northward shift of the Intertropical Convergence Zone. The response to the Greenland ice sheet removal is related to thermodynamic and topographical effects that influence the East Asian monsoon through an orographically induced wave train. The response to the larger Antarctic ice sheet involves stronger upwelling of circumpolar deep water in the Southern Ocean melts the sea ice, leading to a warmer SST. This warming propagates to the North, affecting the East Asian summer monsoon. © 2020 Elsevier Ltd
英文关键词	Antarctica; Asian monsoon; Astronomical forcing; Greenland; Ice sheet; MIS-13 interglacial
语种	英语
scopus关键词	Atmospheric thermodynamics; Climate models; Glacial geology; Oceanography; Sea ice; Antarctica; Asian monsoon; Astronomical forcing; Greenland; Ice sheet; Glaciers; ice core; ice sheet; interglacial; marine isotope stage; melting; monsoon; Northern Hemisphere; oxygen isotope; upwelling; water vapor; Antarctica; Arctic; China; Greenland; Southern Ocean
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151600
作者单位	Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, 1348, Belgium; CAS Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China; School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191, France; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Shi F.,Yin Q.,Nikolova I.,et al. Impacts of extremely asymmetrical polar ice sheets on the East Asian summer monsoon during the MIS-13 interglacial[J],2020,230.
APA	Shi F.,Yin Q.,Nikolova I.,Berger A.,Ramstein G.,&Guo Z..(2020).Impacts of extremely asymmetrical polar ice sheets on the East Asian summer monsoon during the MIS-13 interglacial.Quaternary Science Reviews,230.
MLA	Shi F.,et al."Impacts of extremely asymmetrical polar ice sheets on the East Asian summer monsoon during the MIS-13 interglacial".Quaternary Science Reviews 230(2020).