DOI: 10.1002/2013GL058955
论文题名: The dependence of transient climate sensitivity and radiative feedbacks on the spatial pattern of ocean heat uptake
作者: Rose B.E.J. ; Armour K.C. ; Battisti D.S. ; Feldl N. ; Koll D.D.B.
刊名: Geophysical Research Letters
ISSN: 0094-10402
EISSN: 1944-10133
出版年: 2014
卷: 41, 期: 3 起始页码: 1071
结束页码: 1078
语种: 英语
英文关键词: climate sensitivity
; feedback
; ocean heat uptake
Scopus关键词: Atmospheric movements
; Feedback
; Global warming
; Atmospheric energy
; Atmospheric general circulation models
; Climate sensitivity
; Coupled simulation
; Global sensitivity
; Ocean heat uptake
; Ocean mixed layers
; Temperature changes
; Carbon dioxide
; atmospheric forcing
; carbon dioxide
; climate modeling
; general circulation model
; global warming
; heat balance
; sensitivity analysis
; spatial analysis
; temperature effect
英文摘要: The effect of ocean heat uptake (OHU) on transient global warming is studied in a multimodel framework. Simple heat sinks are prescribed in shallow aquaplanet ocean mixed layers underlying atmospheric general circulation models independently and combined with CO2 forcing. Sinks are localized to either tropical or high latitudes, representing distinct modes of OHU found in coupled simulations. Tropical OHU produces modest cooling at all latitudes, offsetting only a fraction of CO2 warming. High-latitude OHU produces three times more global mean cooling in a strongly polar-amplified pattern. Global sensitivities in each scenario are set primarily by large differences in local shortwave cloud feedbacks, robust across models. Differences in atmospheric energy transport set the pattern of temperature change. Results imply that global and regional warming rates depend sensitively on regional ocean processes setting the OHU pattern, and that equilibrium climate sensitivity cannot be reliably estimated from transient observations. Key Points Climate response depends strongly on spatial pattern of ocean heat uptake Different radiative feedbacks govern transient and equilibrium CO2 warming Results are robust across an ensemble of aquaplanet climate models ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893852494&doi=10.1002%2f2013GL058955&partnerID=40&md5=56ea0b2b85224cefce8ab62c1205da93
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7666
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, NY, United States
Recommended Citation:
Rose B.E.J.,Armour K.C.,Battisti D.S.,et al. The dependence of transient climate sensitivity and radiative feedbacks on the spatial pattern of ocean heat uptake[J]. Geophysical Research Letters,2014-01-01,41(3).