globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50508
论文题名:
Available potential energy gain from mixing due to the nonlinearity of the equation of state in a global ocean model
作者: Urakawa L.S.; Saenz J.A.; Hogg A.M.
刊名: Geophysical Research Letters
ISSN: 0094-9082
EISSN: 1944-8813
出版年: 2013
卷: 40, 期:10
起始页码: 2224
结束页码: 2228
语种: 英语
英文关键词: available potential energy ; meridional overturning circulation ; nonlinearity of the equation of state ; ocean general circulation model ; the Southern Ocean
Scopus关键词: Buoyancy forcing ; Equation of state ; Global ocean circulation ; Global ocean model ; Gravitational potential energy ; Meridional overturning circulations ; Ocean general circulation models ; Southern ocean ; Equations of state ; Mixing ; Numerical models ; Potential energy ; Oceanography ; buoyancy forcing ; equation of state ; general circulation model ; global ocean ; meridional circulation ; mixing ; nonlinearity ; numerical model ; potential energy ; seawater ; Southern Ocean
英文摘要: Densification in the ocean interior upon mixing at high latitudes, due to the nonlinear equation of state (EoS) of seawater, enhances the meridional overturning circulation (MOC). However, recent calculations using numerical simulations of global ocean circulation have shown that the nonlinearity of the EoS leads to a sink of gravitational potential energy (PE), from which one might infer that there is less energy available to be released to the MOC. Here the available PE (APE) budget of the global ocean is investigated using a numerical model with a nonlinear EoS under a realistic configuration. The results show that, while the nonlinearity of the EoS leads to a loss of gravitational PE, it is a source of APE. For the model used in this study, nonlinearity of the EoS is as significant as surface buoyancy forcing in generating APE. © 2013 American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879939156&doi=10.1002%2fgrl.50508&partnerID=40&md5=32fb543b6d9cb6b0feff59765d0a2a32
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6346
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作者单位: Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba, Japan

Recommended Citation:
Urakawa L.S.,Saenz J.A.,Hogg A.M.. Available potential energy gain from mixing due to the nonlinearity of the equation of state in a global ocean model[J]. Geophysical Research Letters,2013-01-01,40(10).
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