Evaluation of a scalar eddy transport coefficient based on geometric constraints

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• 作者：S.D. Bachman ; ^a ; ^{sb965@cam.ac.uk} ; D.P. Marshall^b ; J.R. Maddison^c ; J. Mak^c
• 关键词：Quasigeostrophic ; Residual mean ; Eddy ; Parameterization ; Gent and McWilliams ; Diffusivity
• 刊名：Ocean Modelling
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：109
• 期：Complete
• 页码：44-54
• 全文大小：2914 K
• 卷排序：109

文摘

Residual-mean theory can be used to constrain the magnitude of an eddy transport coefficient. The dimensional terms in this coefficient are specified, and the only free parameter is dimensionless. The skill of any scaling for this coefficient can be evaluated using a multiple-tracers inversion method. A set of idealized baroclinic channel models is used to evaluate the skill of several proposed scalings. The scaling from residual-mean theory exhibits greater skill in all phases of baroclinic spindown.