气候变化领域集成服务门户(CCPortal): CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica

CCPortal

DOI	10.5194/tc-14-855-2020
	CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica
	Barthel A.; Agosta C.; Little C.M.; Hattermann T.; Jourdain C.N.; Goelzer H.; Nowicki S.; Seroussi H.; Straneo F.; Bracegirdle J.T.
发表日期	2020
ISSN	19940416
起始页码	855
结束页码	879
卷号	14 期号:3
英文摘要	The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise. ISMIP6 conducts stand-alone ice sheet experiments that use space- and time-varying forcing derived from atmosphere-ocean coupled global climate models (AOGCMs) to reflect plausible trajectories for climate projections. The goal of this study is to recommend a subset of CMIP5 AOGCMs (three core and three targeted) to produce forcing for ISMIP6 stand-alone ice sheet simulations, based on (i) their representation of current climate near Antarctica and Greenland relative to observations and (ii) their ability to sample a diversity of projected atmosphere and ocean changes over the 21st century. The selection is performed separately for Greenland and Antarctica. Model evaluation over the historical period focuses on variables used to generate ice sheet forcing. For stage (i), we combine metrics of atmosphere and surface ocean state (annual- and seasonal-mean variables over large spatial domains) with metrics of time-mean subsurface ocean temperature biases averaged over sectors of the continental shelf. For stage (ii), we maximize the diversity of climate projections among the best-performing models. Model selection is also constrained by technical limitations, such as availability of required data from RCP2.6 and RCP8.5 projections. The selected top three CMIP5 climate models are CCSM4, MIROC-ESM-CHEM, and NorESM1-M for Antarctica and HadGEM2-ES, MIROC5, and NorESM1-M for Greenland. This model selection was designed specifically for ISMIP6 but can be adapted for other applications. © 2020 BMJ Publishing Group. All rights reserved.
英文关键词	air-sea interaction; climate modeling; CMIP; global climate; ice sheet; sea ice; sea level; sea surface temperature; Antarctica; Arctic; Greenland
语种	英语
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/202025
作者单位	Los Alamos National Laboratory, Los Alamos, NM, United States; Laboratoire des Sciences du Climat et de l'Environnement, LSCE-IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91198, France; Atmospheric and Environmental Research Inc., Lexington, MA, United States; Norwegian Polar Institute, Tromsø, Norway; Energy and Climate Group, Department of Physics and Technology, Arctic University - University of Tromsø, Tromsø, Norway; Univ. Grenoble Alpes/CNRS/IRD/G-INP, IGE, Grenoble, France; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Laboratoire de Glaciologie, Université Libre de Bruxelles, Brussels, Belgium; NASA GSFC, Cryospheric Sciences Branch, Greenbelt, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Scripps Institution of Oceanography, University of California San Diego, San Diego, CA, United States; British Antarctic Survey, Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Barthel A.,Agosta C.,Little C.M.,et al. CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica[J],2020,14(3).
APA	Barthel A..,Agosta C..,Little C.M..,Hattermann T..,Jourdain C.N..,...&Bracegirdle J.T..(2020).CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica.Cryosphere,14(3).
MLA	Barthel A.,et al."CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica".Cryosphere 14.3(2020).