DOI: 10.1175/JCLI-D-12-00195.1
Scopus记录号: 2-s2.0-84871578471
论文题名: Transient climate response in a two-layer energy-balance model. Part I: Analytical solution and parameter calibration using CMIP5 AOGCM experiments
作者: Geoffroy O. ; Saint-martin D. ; Olivié D.J.L. ; Voldoire A. ; Bellon G. ; Tytéca S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 6 起始页码: 1841
结束页码: 1857
语种: 英语
Scopus关键词: Climate change scenarios
; Climate transition
; Coupled general circulation models
; Coupled Model Intercomparison Project
; Energy balance models
; General analytical solution
; Parameter calibration
; Temperature evolution
; Carbon dioxide
; Experiments
; Mathematical techniques
; Sandwich structures
; Thermodynamic properties
; Climate models
; analytical framework
; atmospheric general circulation model
; climate change
; global climate
; numerical model
; oceanic general circulation model
; top of atmosphere
; upper ocean
英文摘要: This is the first part of a series of two articles analyzing the global thermal properties of atmosphere-ocean coupled general circulation models (AOGCMs) within the framework of a two-layer energy-balance model (EBM). In this part, the general analytical solution of the system is given and two idealized climate change scenarios, one with a step forcing and one with a linear forcing, are discussed. These solutions give a didactic description of the contributions from the equilibrium response and of the fast and slow transient responses during a climate transition. Based on these analytical solutions, a simple and physically based procedure to calibrate the two-layer model parameters using anAOGCMstep-forcing experiment is introduced. Using this procedure, the global thermal properties of 16 AOGCMs participating in phase 5 of the Coupled Model Intercomparison Project (CMIP5) are determined. It is shown that, for a given AOGCM, the EBM tuned with only the abrupt 4×CO2 experiment is able to reproduce with a very good accuracy the temperature evolution in both a step-forcing and a linear-forcing experiment. The role of the upper-ocean and deep-ocean heat uptakes in the fast and slow responses is also discussed. One of the main weaknesses of the simple EBM discussed in this part is its ability to represent the evolution of the top-of-the-atmosphere radiative imbalance in the transient regime. This issue is addressed in Part II by taking into account the efficacy factor of deepocean heat uptake. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51957
Appears in Collections: 气候变化事实与影响
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作者单位: Centre National de Recherches Météorologiques, Groupe d'eétudes de l'Atmosphére Météorologique (CNRM-GAME), Toulouse, France; Center for International Climate and Environmental Research-Oslo, University of Oslo, Oslo, Norway; Centre National de Recherches Météorologiques, Groupe d'études de l'Atmosphére Météorologique (CNRM-GAME), Toulouse, France
Recommended Citation:
Geoffroy O.,Saint-martin D.,Olivié D.J.L.,et al. Transient climate response in a two-layer energy-balance model. Part I: Analytical solution and parameter calibration using CMIP5 AOGCM experiments[J]. Journal of Climate,2013-01-01,26(6)