气候变化领域集成服务门户(CCPortal): Modelling the response of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries

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DOI	10.5194/tc-8-1057-2014
	Modelling the response of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries
	Gong Y.; Cornford S.L.; Payne A.J.
发表日期	2014
ISSN	19940416
卷号	8 期号:3
英文摘要	The interaction between the climate system and the large polar ice sheet regions is a key process in global environmental change. We carried out dynamic ice simulations of one of the largest drainage systems in East Antarctica: the Lambert Glacier-Amery Ice Shelf system, with an adaptive mesh ice sheet model. The ice sheet model is driven by surface accumulation and basal melt rates computed by the FESOM (Finite-Element Sea-Ice Ocean Model) ocean model and the RACMO2 (Regional Atmospheric Climate Model) and LMDZ4 (Laboratoire de Météorologie Dynamique Zoom) atmosphere models. The change of ice thickness and velocity in the ice shelf is mainly influenced by the basal melt distribution, but, although the ice shelf thins in most of the simulations, there is little grounding line retreat. We find that the Lambert Glacier grounding line can retreat as much as 40 km if there is sufficient thinning of the ice shelf south of Clemence Massif, but the ocean model does not provide sufficiently high melt rates in that region. Overall, the increased accumulation computed by the atmosphere models outweighs ice stream acceleration so that the net contribution to sea level rise is negative.
学科领域	climate modeling; drainage basin; environmental change; geoaccumulation; glacier dynamics; hydrological modeling; ice sheet; ice shelf; ice thickness; numerical model; sea level change; Antarctica; East Antarctica
语种	英语
scopus关键词	climate modeling; drainage basin; environmental change; geoaccumulation; glacier dynamics; hydrological modeling; ice sheet; ice shelf; ice thickness; numerical model; sea level change; Antarctica; East Antarctica
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120100
作者单位	School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, United Kingdom; Arctic Center, Lapland University, Rovaniemi, 96101, Finland; School of Geographical Sciences, University of Bristol, Bristol, BS8 1SS, United Kingdom
推荐引用方式 GB/T 7714	Gong Y.,Cornford S.L.,Payne A.J.. Modelling the response of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries[J],2014,8(3).
APA	Gong Y.,Cornford S.L.,&Payne A.J..(2014).Modelling the response of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries.Cryosphere,8(3).
MLA	Gong Y.,et al."Modelling the response of the Lambert Glacier-Amery Ice Shelf system, East Antarctica, to uncertain climate forcing over the 21st and 22nd centuries".Cryosphere 8.3(2014).