[MITgcm-devel] MLD criterion

[Dimitris Menemenlis]

> right....i believe the kara et al. scheme is that the change in rho required
> to determine when out of the mixed layer is what the surface rho would be if
> potential temp was .8C colder...but this doesnt work in some areas of the
> Southern Ocean...have to see how new criteria behave

The Kara et al. criterion cannot work for SST near freezing point.  For example, 
at 10 deg C the Kara et al. criterion gives

> » disp(rho(35,10,0)-rho(35,10.8,0))
>     0.1403

a deltarho of 0.1403 kg/m^3, which is fine but at -1 deg C the Kara et al. 
criterion gives

> » disp(rho(35,-1,0)-rho(35,-1.8,0))
>    -0.0277

a "negative" delta rho!  So I guess the Kara et al. criterion would have to be 
modified with a minimum deltarho if it is to work at high latitudes.

> nice slam on dimitris in there....wow

It's OK.  Most of the times the slams are well deserved.  Not everybody can be 
as perfect as CNH.  D.

-- 
Dimitris Menemenlis <menemenlis at sbcglobal.net>
5056 Oakwood Ave, La Canada, CA 91011-2450
tel/fax: 818-790-6735;   cell: 818-625-6498