DOI: 10.1002/2014GL062807
论文题名: Nonlinearity of ocean heat uptake during warming and cooling in the FAMOUS climate model
作者: Bouttes N. ; Good P. ; Gregory J.M. ; Lowe J.A.
刊名: Geophysical Research Letters
ISSN: 0094-8775
EISSN: 1944-8506
出版年: 2015
卷: 42, 期: 7 起始页码: 2409
结束页码: 2416
语种: 英语
英文关键词: carbon removal
; general circulation model
; ocean dynamics
; reversibility
Scopus关键词: Atmospheric radiation
; Carbon dioxide
; Climate change
; Climate models
; Atlantic meridional overturning circulations
; Atmosphere ocean general circulation models
; Carbon removal
; General circulation model
; Ocean dynamics
; Ocean heat content
; Radiative forcings
; Reversibility
; Oceanography
; advection
; atmospheric chemistry
; carbon dioxide
; climate forcing
; climate modeling
; concentration (composition)
; general circulation model
; nonlinearity
; radiative forcing
英文摘要: Atmospheric CO2 concentration is expected to continue rising in the coming decades, but natural or artificial processes may eventually reduce it. We show that, in the FAMOUS atmosphere-ocean general circulation model, the reduction of ocean heat content as radiative forcing decreases is greater than would be expected from a linear model simulation of the response to the applied forcings. We relate this effect to the behavior of the Atlantic meridional overturning circulation (AMOC): the ocean cools more efficiently with a strong AMOC. The AMOC weakens as CO2 rises, then strengthens as CO2 declines, but temporarily overshoots its original strength. This nonlinearity comes mainly from the accumulated advection of salt into the North Atlantic, which gives the system a longer memory. This implies that changes observed in response to different CO2 scenarios or from different initial states, such as from past changes, may not be a reliable basis for making projections. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928703926&doi=10.1002%2f2014GL062807&partnerID=40&md5=68f63bd6ee674e65d207a9258c807458
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8391
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: NCAS-Climate, University of Reading, Reading, United Kingdom
Recommended Citation:
Bouttes N.,Good P.,Gregory J.M.,et al. Nonlinearity of ocean heat uptake during warming and cooling in the FAMOUS climate model[J]. Geophysical Research Letters,2015-01-01,42(7).