气候变化领域集成服务门户(CCPortal): Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project

CCPortal

DOI	10.5194/tc-9-881-2015
	Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project
	De Boer B.; Dolan A.M.; Bernales J.; Gasson E.; Goelzer H.; Golledge N.R.; Sutter J.; Huybrechts P.; Lohmann G.; Rogozhina I.; Abe-Ouchi A.; Saito F.; Van De Wal R.S.W.
发表日期	2015
ISSN	19940416
卷号	9 期号:3
英文摘要	In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance. The late Pliocene warm period (also known as the PRISM interval: 3.264 to 3.025 million years before present) can serve as a potential analogue for projected future climates. Although Pliocene ice locations and extents are still poorly constrained, a significant contribution to sea-level rise should be expected from both the Greenland ice sheet and the West and East Antarctic ice sheets based on palaeo sea-level reconstructions. Here, we present results from simulations of the Antarctic ice sheet by means of an international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP-ANT). For the experiments, ice-sheet models including the shallow ice and shelf approximations have been used to simulate the complete Antarctic domain (including grounded and floating ice). We compare the performance of six existing numerical ice-sheet models in simulating modern control and Pliocene ice sheets by a suite of five sensitivity experiments. We include an overview of the different ice-sheet models used and how specific model configurations influence the resulting Pliocene Antarctic ice sheet. The six ice-sheet models simulate a comparable present-day ice sheet, considering the models are set up with their own parameter settings. For the Pliocene, the results demonstrate the difficulty of all six models used here to simulate a significant retreat or re-advance of the East Antarctic ice grounding line, which is thought to have happened during the Pliocene for the Wilkes and Aurora basins. The specific sea-level contribution of the Antarctic ice sheet at this point cannot be conclusively determined, whereas improved grounding line physics could be essential for a correct representation of the migration of the grounding-line of the Antarctic ice sheet during the Pliocene. © 2015 Author(s).
学科领域	climate change; future prospect; ice sheet; Pliocene; reconstruction; Antarctic Ice Sheet; Antarctica; East Antarctic Ice Sheet; East Antarctica; West Antarctic Ice Sheet; West Antarctica
语种	英语
scopus关键词	climate change; future prospect; ice sheet; Pliocene; reconstruction; Antarctic Ice Sheet; Antarctica; East Antarctic Ice Sheet; East Antarctica; West Antarctic Ice Sheet; West 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/119908
作者单位	Department of Earth Sciences, Faculty of Geosciences, Utrecht University, Utrecht, Netherlands; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany; Freie Universitaet Berlin, Berlin, Germany; Climate System Research Center, University of Massachusetts Amherst, Amherst, MA, United States; Earth System Sciences and Departement Geografie, Vrije Universiteit Brussel, Brussels, Belgium; Antarctic Research Centre, Victoria University of Wellington, Wellington, New Zealand; GNS Science, 5011 Lower Hutt, Avalon, New Zealand; Alfred Wegener Institute, Bremerhaven, Germany; Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, 277-8568, Japan; Department of Integrated Climate Change Projection Research, JAMSTEC, Yokohama, Japan
推荐引用方式 GB/T 7714	De Boer B.,Dolan A.M.,Bernales J.,et al. Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project[J],2015,9(3).
APA	De Boer B..,Dolan A.M..,Bernales J..,Gasson E..,Goelzer H..,...&Van De Wal R.S.W..(2015).Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project.Cryosphere,9(3).
MLA	De Boer B.,et al."Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project".Cryosphere 9.3(2015).