[MITgcm-support] kpp

[Dimitris Menemenlis]

> Is it possible to turn everything else in KPP off (except fast mixing at
> Ri<0) ? How do I set the parameters for that?

Dmitri, I assume you mean gradient (shear instability) as opposed to bulk 
(boundary layer depth) Richardson number in KPP formulation.

You can turn off KPP PBL mixing by setting
  #undef KPP_GHAT"
in KPP_OPTIONS.h prior to compiling the code and
  difmcon = 0
  difscon = 0
  diftcon = 0
in the runtime data.kpp file.

You can turn off background vertical mixing by setting
  viscAr  = 0
  diffKrT = 0
  diffKrS = 0

Double diffusive KPP mixing is not implemented in MITgcm.

-- 
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