globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-9-881-2015
Scopus记录号: 2-s2.0-84928947554
论文题名:
Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project
作者: 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
刊名: Cryosphere
ISSN: 19940416
出版年: 2015
卷: 9, 期:3
起始页码: 881
结束页码: 903
语种: 英语
英文关键词: climate change ; future prospect ; ice sheet ; Pliocene ; reconstruction ; Antarctic Ice Sheet ; Antarctica ; East Antarctic Ice Sheet ; East Antarctica ; West Antarctic Ice Sheet ; West Antarctica
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).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75304
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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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, Japan; Department of Integrated Climate Change Projection Research, JAMSTEC, Yokohama, Japan

Recommended Citation:
De Boer B,, Dolan A,M,et al. Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project[J]. Cryosphere,2015-01-01,9(3)
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