| DOI: | 10.1002/grl.50287
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| 论文题名: | Southern Ocean bottom water characteristics in CMIP5 models |
| 作者: | Heuzé C.; Heywood K.J.; Stevens D.P.; Ridley J.K.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9170
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| EISSN: | 1944-8901
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| 出版年: | 2013
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| 卷: | 40, 期:7 | | 起始页码: | 1409
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| 结束页码: | 1414
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| 语种: | 英语
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| 英文关键词: | Bottom Water
; climate models
; CMIP5
; Southern Ocean
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| Scopus关键词: | Antarctic shelf
; Bottom water
; Climate prediction
; CMIP5
; Coupled Model Intercomparison Project
; Deep convection
; Formation process
; Southern ocean
; Climatology
; Natural convection
; Sea ice
; Sea level
; Climate models
; bottom water
; climate modeling
; continental shelf
; deep water
; dense water
; gyre
; marine atmosphere
; oceanic convection
; sea ice
; seasonality
; water temperature
; Southern Ocean
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| 英文摘要: | Southern Ocean deep water properties and formation processes in climate models are indicative of their capability to simulate future climate, heat and carbon uptake, and sea level rise. Southern Ocean temperature and density averaged over 1986-2005 from 15 CMIP5 (Coupled Model Intercomparison Project Phase 5) climate models are compared with an observed climatology, focusing on bottom water. Bottom properties are reasonably accurate for half the models. Ten models create dense water on the Antarctic shelf, but it mixes with lighter water and is not exported as bottom water as in reality. Instead, most models create deep water by open ocean deep convection, a process occurring rarely in reality. Models with extensive deep convection are those with strong seasonality in sea ice. Optimum bottom properties occur in models with deep convection in the Weddell and Ross Gyres. Bottom Water formation processes are poorly represented in ocean models and are a key challenge for improving climate predictions. Key Points The models studied are unable to reproduce Antarctic shelf processes Climate models create bottom water in the Southern Ocean through deep convection Deep convection in subpolar gyres can lead to acceptable deep properties ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876950509&doi=10.1002%2fgrl.50287&partnerID=40&md5=6f07269f7d04d656fbd6d09198e21d2b
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| Citation statistics: |
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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/6434
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| Appears in Collections: | 气候减缓与适应
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作者单位: | School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
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| Recommended Citation: | |
Heuzé C.,Heywood K.J.,Stevens D.P.,et al. Southern Ocean bottom water characteristics in CMIP5 models[J]. Geophysical Research Letters,2013-01-01,40(7).
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