[MITgcm-support] the depth of bottom U and V velocity

[Martin Losch]

The velocity is constant over the face of a C-cell.
For stress computations (vertical viscosity), vertical gradients are computed as if the velocities were at the center of the face, so in your example 5m from the cell edges (and the bottom), see pkg/mom_common/mom_u_rviscflux.F

Martin

On Jun 9, 2011, at 7:31 AM, Chun-Yan Zhou wrote:

> Dear all,
>  I wondered what is the depth of U and V velocity, the top or centre of the grid cell? For example, a flat seabed with water depth d=200m, and Nr=20 , dz=10m in the vertical. Is the bottom grid velocity U and V 10m or 5m from the seabed? Thanks in advance.
>  
>  
>  
> Chunyan Zhou
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