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Next: 6.3.7 Tapering: Large, Danabasoglu Up: 6.3 Gent/McWiliams/Redi SGS Eddy Previous: 6.3.5 Tapering and stability Contents 6.3.6 Tapering: Danabasoglu and McWilliams, J. Clim. 1995
The tapering scheme used by Danabasoglu and McWilliams, 1995,
[11], followed a similar procedure but used a different
tapering function,
where  is a cut-off slope and  is a scale over
which the slopes are smoothly tapered. Functionally, the operates in
the same way as the GKW91 scheme but has a substantially lower
cut-off, turning off the GM/Redi SGS parameterization for weaker
slopes.
The DM tapering scheme is activated in the model by setting GM_taper_scheme = 'dm95' in data.gmredi.
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![$\displaystyle f_1(S) = \frac{1}{2} \left( 1+\tanh \left[ \frac{S_c - \vert S\vert}{S_d} \right] \right)$](img1761.png){kind=small}
