气候变化领域集成服务门户(CCPortal): Design and results of the ice sheet model initialisation initMIP-Greenland: An ISMIP6 intercomparison

CCPortal

DOI	10.5194/tc-12-1433-2018
	Design and results of the ice sheet model initialisation initMIP-Greenland: An ISMIP6 intercomparison
	Goelzer H.; Nowicki S.; Edwards T.; Beckley M.; Abe-Ouchi A.; Aschwanden A.; Calov R.; Gagliardini O.; Gillet-Chaulet F.; Golledge N.R.; Gregory J.; Greve R.; Humbert A.; Huybrechts P.; Kennedy J.H.; Larour E.; Lipscomb W.H.; Leclech S.; Lee V.; Morlighem M.; Pattyn F.; Payne A.J.; Rodehacke C.; Rückamp M.; Saito F.; Schlegel N.; Seroussi H.; Shepherd A.; Sun S.; Van De Wal R.; Ziemen F.A.
发表日期	2018
ISSN	19940416
卷号	12 期号:4
英文摘要	Earlier large-scale Greenland ice sheet sea-level projections (e.g. those run during the ice2sea and SeaRISE initiatives) have shown that ice sheet initial conditions have a large effect on the projections and give rise to important uncertainties. The goal of this initMIP-Greenland intercomparison exercise is to compare, evaluate, and improve the initialisation techniques used in the ice sheet modelling community and to estimate the associated uncertainties in modelled mass changes. initMIP-Greenland is the first in a series of ice sheet model intercomparison activities within ISMIP6 (the Ice Sheet Model Intercomparison Project for CMIP6), which is the primary activity within the Coupled Model Intercomparison Project Phase 6 (CMIP6) focusing on the ice sheets. Two experiments for the large-scale Greenland ice sheet have been designed to allow intercomparison between participating models of (1) the initial present-day state of the ice sheet and (2) the response in two idealised forward experiments. The forward experiments serve to evaluate the initialisation in terms of model drift (forward run without additional forcing) and in response to a large perturbation (prescribed surface mass balance anomaly); they should not be interpreted as sea-level projections. We present and discuss results that highlight the diversity of data sets, boundary conditions, and initialisation techniques used in the community to generate initial states of the Greenland ice sheet. We find good agreement across the ensemble for the dynamic response to surface mass balance changes in areas where the simulated ice sheets overlap but differences arising from the initial size of the ice sheet. The model drift in the control experiment is reduced for models that participated in earlier intercomparison exercises. © Author(s) 2018.
学科领域	comparative study; design; experimental study; ice sheet; mass balance; perturbation; prediction; sea level; uncertainty analysis; Arctic; Greenland; Greenland Ice Sheet
语种	英语
scopus关键词	comparative study; design; experimental study; ice sheet; mass balance; perturbation; prediction; sea level; uncertainty analysis; Arctic; Greenland; Greenland Ice Sheet
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/119172
作者单位	Utrecht University, Institute for Marine and Atmospheric Research (IMAU), Utrecht, Netherlands; Laboratoire de Glaciologie, Université Libre de Bruxelles, Brussels, Belgium; NASA GSFC, Cryospheric Sciences Branch, Greenbelt, United States; School of Environment Earth and Ecosystem Sciences, Open University, Milton Keynes, UK, United Kingdom; Atmosphere Ocean Research Institute, University of Tokyo, Kashiwa, Japan; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, United States; Potsdam Institute for Climate Impact Research, Potsdam, Germany; Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, 38000, France; Antarctic Research Centre, Victoria University of Wellington, Wellington, New Zealand; Department of Meteorology, University of Reading, Reading, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; University of ...
推荐引用方式 GB/T 7714	Goelzer H.,Nowicki S.,Edwards T.,et al. Design and results of the ice sheet model initialisation initMIP-Greenland: An ISMIP6 intercomparison[J],2018,12(4).
APA	Goelzer H..,Nowicki S..,Edwards T..,Beckley M..,Abe-Ouchi A..,...&Ziemen F.A..(2018).Design and results of the ice sheet model initialisation initMIP-Greenland: An ISMIP6 intercomparison.Cryosphere,12(4).
MLA	Goelzer H.,et al."Design and results of the ice sheet model initialisation initMIP-Greenland: An ISMIP6 intercomparison".Cryosphere 12.4(2018).