气候变化领域集成服务门户(CCPortal): Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene

CCPortal

DOI	10.1029/2019GL083164
	Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene
	Lesnek A.J.; Briner J.P.; Young N.E.; Cuzzone J.K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Establishing the timing of maximum Holocene warmth in the Arctic is critical for understanding global climate system response to external forcing. In Greenland, challenges in obtaining climate records that span the full Holocene have hampered efforts to robustly identify when the Holocene Thermal Maximum occurred. Reconstructing land-based ice sheet history can fill this gap because these ice sheet regions respond sensitively to summer temperature. We synthesize new and published 10Be and 14C ages from southwest Greenland to map Greenland ice sheet margin positions from 12 to 7 ka and calculate retreat rates from 12 to 0 ka. We found that maximum Greenland ice sheet recession occurred between ~10.4 and 9.1 ka. Our reconstruction suggests that summer air temperatures in southwest Greenland were highest from ~10.4 to 9.1 ka, providing support for an early regional Holocene Thermal Maximum. These results can serve as benchmarks for comparison with ice sheet and climate model simulations. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate models; Glaciers; Air temperature; Climate model simulations; Early Holocene; Global climate system; Greenland Ice Sheet; Holocene thermal maximums; Ice sheet history; Summer temperature; Ice; air temperature; climate forcing; climate modeling; global climate; Holocene; Hypsithermal; ice sheet; Arctic; Greenland; Greenland Ice Sheet
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170873
作者单位	Department of Earth Sciences, University of New Hampshire, Durham, NH, United States; Department of Geology, University at Buffalo, Buffalo, NY, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Lesnek A.J.,Briner J.P.,Young N.E.,et al. Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene[J],2020,47(1).
APA	Lesnek A.J.,Briner J.P.,Young N.E.,&Cuzzone J.K..(2020).Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene.Geophysical Research Letters,47(1).
MLA	Lesnek A.J.,et al."Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene".Geophysical Research Letters 47.1(2020).