| DOI: | 10.1175/JCLI-D-11-00600.1
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| Scopus记录号: | 2-s2.0-84867681945
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| 论文题名: | Analysis of the model climate sensitivity spread forced by mean sea surface: Temperature biases |
| 作者: | Dommenget D.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2012
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| 卷: | 25, 期:20 | | 起始页码: | 7147
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| 结束页码: | 7162
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| 语种: | 英语
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| Scopus关键词: | Anthropogenic forcing
; Atmospheric general circulation models
; Climate sensitivity
; Climate system
; Climate variables
; Control state
; Coupled Model Intercomparison Project
; Coupled models
; General circulation model
; Large parts
; Mean sea surfaces
; Model errors
; Model simulation
; Regional response
; Sensitivity Simulation
; Slab ocean models
; Temperature bias
; Climatology
; Computer simulation
; Climate models
; atmosphere-ocean coupling
; climate forcing
; climate modeling
; general circulation model
; numerical model
; sea surface temperature
; sensitivity analysis
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| 英文摘要: | Uncertainties in the numerical realization of the physical climate system in coarse-resolution climate models in the Coupled Model Intercomparison Project phase 3 (CMIP3) cause large spread in the global mean and regional response amplitude to a given anthropogenic forcing scenario, and they cause the climate models to have mean state climates different from the observed and different from each other. In a series of sensitivity simulations with an atmospheric general circulation model coupled to a Slab Ocean Model, the role of differences in the control mean sea surface temperature (SST) in simulating the global mean and regional response amplitude is explored. The model simulations are forced into the control mean state SST of 24 CMIP3 climate models, and 2xCO 2 forcing experiments are started from the different control states. The differences in the SST mean state cause large differences in other climate variables, but they do not reproduce most of the large spread in the mean state climate over land and ice-covered regions found in the CMIP3 model simulations. The spread in the mean SST climatology leads to a spread in the global mean and regional response amplitude of about 10%, which is about half as much as the spread in the response of the CMIP3 climate models and is therefore of considerable size. Since the SST climatology biases are only a small part of the models' mean state climate biases, it is likely that the climate model's mean state climate biases are accounting for a large part of the model's climate sensitivity spread. © 2012 American Meteorological Society. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/52196
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | School of Mathematical Sciences, Monash University, Building 28, Clayton, VIC 3800, Australia
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| Recommended Citation: | |
Dommenget D.. Analysis of the model climate sensitivity spread forced by mean sea surface: Temperature biases[J]. Journal of Climate,2012-01-01,25(20)
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