气候变化领域集成服务门户(CCPortal): SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet

CCPortal

DOI	10.5194/tc-10-43-2016
	SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet
	Saito F.; Abe-Ouchi A.; Takahashi K.; Blatter H.
发表日期	2016
ISSN	19940416
卷号	10 期号:1
英文摘要	The present paper revisits the future surfaceclimate experiments on the Greenland ice sheet proposed by the Sea-level Response to Ice Sheet Evolution (SeaRISE; Bindschadler et al., 2013) study. The projections of the different SeaRISE participants show dispersion, which has not been examined in detail to date. A series of sensitivity experiments are conducted and analyzed using the ice-sheet model for integrated Earth-system studies (IcIES) by replacing one or more formulations of the model parameters with those adopted in other model(s). The results show that large potential sources of the dispersion among the projections of the different SeaRISE participants are differences in the initialization methods and in the surface mass balance methods, and both aspects have almost equal impact on the results. The treatment of ice-sheet margins in the simulation has a secondary impact on the dispersion. We conclude that spinning up the model using fixed topography through the spin-up period while the temperature is allowed to evolve according to the surface temperature history is the preferred representation, at least for the experiment configuration examined in the present paper. A benchmark model experimental setup that most of the numerical models can perform is proposed for future intercomparison projects, in order to evaluate the uncertainties relating to pure ice-sheet model flow characteristics. © 2016 Author(s).
学科领域	benchmarking; dispersion; experimental study; ice sheet; mass balance; sea level change; sensitivity analysis; surface temperature; topography; uncertainty analysis; Arctic; Greenland; Greenland Ice Sheet
语种	英语
scopus关键词	benchmarking; dispersion; experimental study; ice sheet; mass balance; sea level change; sensitivity analysis; surface temperature; topography; 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/119722
作者单位	Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Atmosphere Ocean Research Institute, University of Tokyo, Kashiwa, Japan; Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Saito F.,Abe-Ouchi A.,Takahashi K.,et al. SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet[J],2016,10(1).
APA	Saito F.,Abe-Ouchi A.,Takahashi K.,&Blatter H..(2016).SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet.Cryosphere,10(1).
MLA	Saito F.,et al."SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet".Cryosphere 10.1(2016).