气候变化领域集成服务门户(CCPortal): Sensitivity of the Atlantic Meridional Overturning Circulation to Model Resolution in CMIP6 HighResMIP Simulations and Implications for Future Changes

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DOI	10.1029/2019MS002014
	Sensitivity of the Atlantic Meridional Overturning Circulation to Model Resolution in CMIP6 HighResMIP Simulations and Implications for Future Changes
	Roberts M.J.; Jackson L.C.; Roberts C.D.; Meccia V.; Docquier D.; Koenigk T.; Ortega P.; Moreno-Chamarro E.; Bellucci A.; Coward A.; Drijfhout S.; Exarchou E.; Gutjahr O.; Hewitt H.; Iovino D.; Lohmann K.; Putrasahan D.; Schiemann R.; Seddon J.; Terray L.; Xu X.; Zhang Q.; Chang P.; Yeager S.G.; Castruccio F.S.; Zhang S.; Wu L.
发表日期	2020
ISSN	19422466
卷号	12 期号:8
英文摘要	A multimodel, multiresolution ensemble using Coupled Model Intercomparison Project Phase 6 (CMIP6) High Resolution Model Intercomparison Project (HighResMIP) coupled experiments is used to assess the performance of key aspects of the North Atlantic circulation. The Atlantic Meridional Overturning Circulation (AMOC), and related heat transport, tends to become stronger as ocean model resolution is enhanced, better agreeing with observations at 26.5°N. However, for most models the circulation remains too shallow compared to observations and has a smaller temperature contrast between the northward and southward limbs of the AMOC. These biases cause the northward heat transport to be systematically too low for a given overturning strength. The higher-resolution models also tend to have too much deep mixing in the subpolar gyre. In the period 2015–2050 the overturning circulation tends to decline more rapidly in the higher-resolution models, which is related to both the mean state and to the subpolar gyre contribution to deep water formation. The main part of the decline comes from the Florida Current component of the circulation. Such large declines in AMOC are not seen in the models with resolutions more typically used for climate studies, suggesting an enhanced risk for Northern Hemisphere climate change. However, only a small number of different ocean models are included in the study. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	AMOC; Atlantic; future projection; model resolution; ocean circulation
语种	英语
scopus关键词	Climate change; Climate models; Heat transfer; Atlantic meridional overturning circulations; Coupled Model Intercomparison Project; Deep-water formation; High-resolution models; Implications for futures; Northern Hemispheres; Overturning circulation; Temperature contrast; Oceanography; climate change; CMIP; deep water; experimental study; gyre; heat transfer; meridional circulation; North Atlantic Oscillation; Northern Hemisphere; performance assessment; sensitivity analysis; Atlantic Ocean; Atlantic Ocean (North); Florida Current
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156678
作者单位	Met Office, Exeter, United Kingdom; European Centre for Medium Range Weather Forecasting (ECMWF), Reading, United Kingdom; Istituto di Scienze dell'Atmosfera e del Clima (CNR-ISAC), Bologna, Bologna, Italy; Rossby Centre, Swedish Meteorological and Hydrological Institute (SMHI), Norrköping, Sweden; Barcelona Supercomputing Center-Centro Nacional de Supercomputación (BSC), Barcelona, Spain; Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), Bologna, Italy; National Oceanography Centre, Southampton, United Kingdom; Koninklijk Nederlands Meteorologisch Instituut (KNMI), De Bilt, Netherlands; Max Planck Institute for Meteorology (MPI-M), Hamburg, Germany; National Centre for Atmospheric Science (NCAS), University of Reading, Reading, United Kingdom; CECI, Université de Toulouse, CERFACS/CNRS, Toulouse, France; Center for Ocean-Atmospheric Prediction Studies (COAPS), Florida State University, Tallahassee, FL, United States; Department of Oceanography, Texas A&M University, College Station, U...
推荐引用方式 GB/T 7714	Roberts M.J.,Jackson L.C.,Roberts C.D.,et al. Sensitivity of the Atlantic Meridional Overturning Circulation to Model Resolution in CMIP6 HighResMIP Simulations and Implications for Future Changes[J],2020,12(8).
APA	Roberts M.J..,Jackson L.C..,Roberts C.D..,Meccia V..,Docquier D..,...&Wu L..(2020).Sensitivity of the Atlantic Meridional Overturning Circulation to Model Resolution in CMIP6 HighResMIP Simulations and Implications for Future Changes.Journal of Advances in Modeling Earth Systems,12(8).
MLA	Roberts M.J.,et al."Sensitivity of the Atlantic Meridional Overturning Circulation to Model Resolution in CMIP6 HighResMIP Simulations and Implications for Future Changes".Journal of Advances in Modeling Earth Systems 12.8(2020).