DOI: 10.1175/JCLI-D-18-0186.1
Scopus记录号: 2-s2.0-85054049800
论文题名: Impact of mesoscale eddy transfer on heat uptake in an eddy-parameterizing ocean model
作者: Saenko O.A. ; Yang D. ; Gregory J.M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 20 起始页码: 8589
结束页码: 8606
语种: 英语
英文关键词: Heat budgets/fluxes
; Meridional overturning circulation
; Mesoscale processes
; Ocean models
; Parameterization
Scopus关键词: Climate models
; Heat flux
; Parameterization
; Surface waters
; Atlantic meridional overturning circulations
; Climate simulation
; Heat budgets/fluxes
; Meridional overturning circulations
; Mesoscale process
; Ocean model
; Scaling relationships
; Sea surface temperature (SST)
; Oceanography
英文摘要: Using a set of experiments with an eddy-parameterizing ocean model, it is found that the strength of the Atlantic meridional overturning circulation (AMOC) intensifies with the decrease of the density-dependent mesoscale eddy transfer. However, the intensification is weaker than that suggested by simple scaling relationships previously applied. Perturbing the model control sea surface temperature (SST) to mimic its change in response to doubling of CO2, it is shown that the associated ocean heat uptake (OHU) increases and penetrates deeper with the decrease of the mesoscale eddy transfer. It is shown that the OHU correlates with the AMOC strength, and both these quantities are affected by the mesoscale eddy transfer. Passive tracer experiments in the ocean model provide a possible explanation for the finding in coupled-model climate simulations that the ocean heat uptake efficiency (OHUE) increases with the AMOC strength and decreases with the eddy energy generated from the mean state. It is also found that the OHU in the SST-perturbation experiments scales with the net downward advection of heat. The contribution of the AMOC to the downward heat flux is illustrated using a streamfunction in depth-temperature space. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110666
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Canadian Centre for Climate Modelling and Analysis, Victoria, BC, Canada; National Centre for Atmospheric Science, University of Reading, Reading, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom
Recommended Citation:
Saenko O.A.,Yang D.,Gregory J.M.. Impact of mesoscale eddy transfer on heat uptake in an eddy-parameterizing ocean model[J]. Journal of Climate,2018-01-01,31(20)