气候变化领域集成服务门户(CCPortal): Proglacial Lakes Control Glacier Geometry and Behavior During Recession

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DOI	10.1029/2020GL088865
	Proglacial Lakes Control Glacier Geometry and Behavior During Recession
	Sutherland J.L.; Carrivick J.L.; Gandy N.; Shulmeister J.; Quincey D.J.; Cornford S.L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Ice-contact proglacial lakes are generally absent from numerical model simulations of glacier evolution, and their effects on ice dynamics and on rates of deglaciation remain poorly quantified. Using the BISICLES ice flow model, we analyzed the effects of an ice-contact lake on the Pukaki Glacier, New Zealand, during recession from the Last Glacial Maximum. The ice-contact lake produced a maximum effect on grounding line recession >4 times further and on ice velocities up to 8 times faster, compared to simulations of a land-terminating glacier forced by the same climate. The lake contributed up to 82% of cumulative grounding line recession and 87% of ice velocity during the first 300 years of the simulations, but those values decreased to just 6% and 37%, respectively, after 5,000 years. Numerical models that ignore lake interactions will, therefore, misrepresent the rate of recession especially during the transition of a land-terminating to a lake-terminating environment. ©2020. The Authors.
英文关键词	Lakes; Numerical models; Deglaciations; Glacier geometry; Grounding line; Ice dynamics; Ice-flow models; Last Glacial Maximum; Numerical model simulations; Proglacial lakes; Ice; deglaciation; fault geometry; grounding line; ice flow; Last Glacial Maximum; numerical model; proglacial environment; New Zealand
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/169655
作者单位	School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; School of Earth and Environment, University of Canterbury, Christchurch, New Zealand; Department of Geography, Swansea University, Swansea, United Kingdom
推荐引用方式 GB/T 7714	Sutherland J.L.,Carrivick J.L.,Gandy N.,et al. Proglacial Lakes Control Glacier Geometry and Behavior During Recession[J],2020,47(19).
APA	Sutherland J.L.,Carrivick J.L.,Gandy N.,Shulmeister J.,Quincey D.J.,&Cornford S.L..(2020).Proglacial Lakes Control Glacier Geometry and Behavior During Recession.Geophysical Research Letters,47(19).
MLA	Sutherland J.L.,et al."Proglacial Lakes Control Glacier Geometry and Behavior During Recession".Geophysical Research Letters 47.19(2020).