气候变化领域集成服务门户(CCPortal): Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation

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DOI	10.1038/s41467-021-23131-x
	Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation
	Hattermann T.; Nicholls K.W.; Hellmer H.H.; Davis P.E.D.; Janout M.A.; Østerhus S.; Schlosser E.; Rohardt G.; Kanzow T.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Floating ice shelves are the Achilles’ heel of the Antarctic Ice Sheet. They limit Antarctica’s contribution to global sea level rise, yet they can be rapidly melted from beneath by a warming ocean. At Filchner-Ronne Ice Shelf, a decline in sea ice formation may increase basal melt rates and accelerate marine ice sheet mass loss within this century. However, the understanding of this tipping-point behavior largely relies on numerical models. Our new multi-annual observations from five hot-water drilled boreholes through Filchner-Ronne Ice Shelf show that since 2015 there has been an intensification of the density-driven ice shelf cavity-wide circulation in response to reinforced wind-driven sea ice formation in the Ronne polynya. Enhanced southerly winds over Ronne Ice Shelf coincide with westward displacements of the Amundsen Sea Low position, connecting the cavity circulation with changes in large-scale atmospheric circulation patterns as a new aspect of the atmosphere-ocean-ice shelf system. © 2021, The Author(s).
语种	英语
scopus关键词	hot water; annual variation; atmospheric circulation; borehole; ice sheet; numerical model; sea ice; sea level change; warming; Antarctica; Article; atmosphere; density; ice sheet; ice shelf; sea ice; sea level rise; warming; wind; Amundsen Sea; Antarctic Ice Sheet; Antarctica; Filchner-Ronne Ice Shelf; Southern Ocean; West Antarctica
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/250693
作者单位	Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Akvaplan-niva AS, Tromsø, Norway; Norwegian Polar Institute, Tromsø, Norway; British Antarctic Survey BAS, Cambridge, United Kingdom; NORCE Norwegian Research Centre and Bjerknes Centre for Climate Research, Bergen, Norway; Department of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria; Austrian Polar Research Institute, Vienna, Austria; Bremen University, Department of Physics and Electrical Engineering, Bremen, Germany
推荐引用方式 GB/T 7714	Hattermann T.,Nicholls K.W.,Hellmer H.H.,et al. Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation[J],2021,12(1).
APA	Hattermann T..,Nicholls K.W..,Hellmer H.H..,Davis P.E.D..,Janout M.A..,...&Kanzow T..(2021).Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation.Nature Communications,12(1).
MLA	Hattermann T.,et al."Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation".Nature Communications 12.1(2021).