[MITgcm-support] bottom drag

[Ryan Abernathey]

Without any explicit bottom drag, but with no slip, the flow still feels a linear bottom drag whose strength is set by the vertical viscosity and the size of the bottom grid cell. 
-R


Sent from my iPhone

On Jun 15, 2011, at 8:01, Xiaoming Zhai <Zhai at atm.ox.ac.uk> wrote:

> Hi,
> 
> I have got a quick question. What happens if I use no-slip bottom boundary condition, but does not specify values for bottomDragLinear or bottomDragQuadratic in my data file? It seems that the default values for bottomDragLinear and bottomDragQuadratic are zero. Does this mean my bottom friction and the energy dissipation associated with that are zero?  Thanks a lot.
> 
> Best,
> Xiaoming
> 
> 
> 
> 
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