The Gent–McWilliams parameterization is commonly used in global ocean models to model the advective component of tracer transport effected by unresolved mesoscale eddies. The vertical structure of the transfer coefficient in this parameterization is studied using data from a 0.1° resolution global ocean‐ice simulation. The vertical structure is found to be well approximated by a baroclinic mode structure with no flow at the bottom, though horizontal anisotropy is crucial for obtaining a good fit. This vertical structure is motivated by reference to the vertical structure of mesoscale eddy velocity and density anomalies, which are also diagnosed from the data.

中文翻译：

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海洋中尺度涡旋的垂直结构及其对示踪剂传输参数化的影响

Gent–McWilliams参数化通常用于全球海洋模型中，以建模由未解析的中尺度涡旋影响的示踪剂运输的对流分量。使用0.1°分辨率的全球海冰模拟数据研究了该参数化过程中传递系数的垂直结构。尽管水平各向异性对于获得良好的拟合至关重要，但发现垂直结构可以通过斜斜模结构很好地近似，而底部没有流动。通过参考中尺度涡流速度和密度异常的垂直结构来激发这种垂直结构，也可以从数据中诊断出来。