[MITgcm-devel] serious bug in rStar code

[Dimitris Menemenlis]

Jean-Michel,

> How does KPP deal with bottom friction ? Does it increase bottom 
> viscosity as it should ?

KPP does not deal with bottom friction in any special way, at least not
in the MITgcm implementation.  Also I don't recall any special treatment
of bottom boundary layer in the Large et al. 94 and 97 papers.

> One thing that looks strange to me is not to apply the bottom stress
> only in the bottom level (because it is supposed to go there).

Don't worry, I do not intend to touch that stuff.  It is way, way beyond 
my level of competence (as are most things ;-).  From your message and 
from my understanding of the code, it seems that current MITgcm bottom 
stress formulation is highly defficient.  I wonder what GFDL and NCAR do 
about this?  Wasn't Sonya experimenting with improved bottom friction 
parameterizations?

Dimitris

-- 
Dimitris Menemenlis <menemenlis at jpl.nasa.gov>
Jet Propulsion Lab, California Institute of Technology
MS 300-323, 4800 Oak Grove Dr, Pasadena CA 91109-8099
tel: 818-354-1656;  fax: 818-393-6720