DOI: 10.1002/2015GL063383
论文题名: A traceable physical calibration of the vertical advection-diffusion equation for modeling ocean heat uptake
作者: Huber M. ; Tailleux R. ; Ferreira D. ; Kuhlbrodt T. ; Gregory J.
刊名: Geophysical Research Letters
ISSN: 0094-8800
EISSN: 1944-8531
出版年: 2015
卷: 42, 期: 7 起始页码: 2333
结束页码: 2341
语种: 英语
英文关键词: climate change
Scopus关键词: Advection
; Carbon dioxide
; Climate change
; Diffusion
; Mixing
; Oceanography
; Velocity
; Diapycnal diffusion
; Diffusion process
; Diffusivity changes
; Ocean heat uptake
; Temperature diagnostics
; Turbulent diffusivities
; Vertical advection
; Vertical velocity
; Climate models
; advection-diffusion equation
; calibration
; climate modeling
; heat balance
; parameterization
; simulation
; turbulence
; vertical mixing
英文摘要: The classic vertical advection-diffusion (VAD) balance is a central concept in studying the ocean heat budget, in particular in simple climate models (SCMs). Here we present a new framework to calibrate the parameters of the VAD equation to the vertical ocean heat balance of two fully-coupled climate models that is traceable to the models' circulation as well as to vertical mixing and diffusion processes. Based on temperature diagnostics, we derive an effective vertical velocity w and turbulent diffusivity kν - for each individual physical process. In steady state, we find that the residual vertical velocity and diffusivity change sign in middepth, highlighting the different regional contributions of isopycnal and diapycnal diffusion in balancing the models' residual advection and vertical mixing. We quantify the impacts of the time evolution of the effective quantities under a transient 1% CO2 simulation and make the link to the parameters of currently employed SCMs. ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928705296&doi=10.1002%2f2015GL063383&partnerID=40&md5=830ec81b563600c9722380fd5e442c64
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8416
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: Department of Meteorology, University of Reading, Reading, United Kingdom
Recommended Citation:
Huber M.,Tailleux R.,Ferreira D.,et al. A traceable physical calibration of the vertical advection-diffusion equation for modeling ocean heat uptake[J]. Geophysical Research Letters,2015-01-01,42(7).