DOI: 10.5194/tc-10-43-2016
Scopus记录号: 2-s2.0-85009395398
论文题名: SeaRISE experiments revisited: Potential sources of spread in multi-model projections of the Greenland ice sheet
作者: Saito F ; , Abe-Ouchi A ; , Takahashi K ; , Blatter H
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 1 起始页码: 43
结束页码: 63
语种: 英语
英文关键词: benchmarking
; dispersion
; experimental study
; ice sheet
; mass balance
; sea level change
; sensitivity analysis
; surface temperature
; topography
; uncertainty analysis
; Arctic
; Greenland
; Greenland Ice Sheet
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). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75201
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
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]. Cryosphere,2016-01-01,10(1)