[MITgcm-devel] please send latest MLI3

[Baylor Fox-Kemper]

Hi Dimitris,
  I thought you said the mixed layer was too deep in your model vs. argo,
not the opposite!  I do think the changes are what's expected--increased
near surface stratification and a shallower ML with submeso on.
  However, I'm puzzled by the issues you have--I wonder if the heat fluxes
and/or wind weren't readjusted by ECCO to prevent overly deep mixed layers?
Can you check the raw heat flux vs the ECCO heat flux in this region?
  Otherwise, we found that introducing submeso into MOM & POP is not a clear
winner, but it reveals other errors that were previously not an issue.
Conceivably, GM tapering, etc, need to be revisited after submeso is
implemented.  (Indeed, in the paper, we spend a lot of time discussing the
AMOC issues after the GM tapering in MOM was fiddled with).
  Cheers,
   -Baylor

On Wed, Apr 7, 2010 at 6:47 PM, Menemenlis, Dimitris (3248) <
Dimitris.Menemenlis at jpl.nasa.gov> wrote:

> Baylor, could you take a look at following slides:
> hzhang_submeso_tests.ppt<http://ecco2.jpl.nasa.gov/data1/meeting/2010/04_07/hzhang_submeso_tests.ppt>
>
> They compare results on cube sphere with and without your submesoscale
> parameterization
> for mixed layer depth and for temperature profiles in the CLIMODE region.
>
> We modified your MITgcm code to add the cutoffs you discuss in appendix A
> of your paper.
> (Without it, the model crashed.)
>
> We want your opinion on
>
> a) is the mixed layer depth pattern of change consistent with what you
> expect
>     (seems to be of right order of magnitude compared to results in your
> paper) and
>
> (b) unfortunately in the CLIMODE region, things are getting worse rather
> than
>      better. So something else is missing. Any suggestions?
>     (Redi mixing below the mixed layer?).
>
> I cc the devel list if anyone else has experience with the submeso
> parameterization.
>
> D.
>
> 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, USA
> tel: 818-354-1656;  cell: 818-625-6498;  fax: 818-393-6720
>
> On Feb 26, 2010, at 3:34 PM, Baylor Fox-Kemper wrote:
>
>
>
> On Fri, Feb 26, 2010 at 12:35 PM, Dimitris Menemenlis <
> menemenlis at jpl.nasa.gov> wrote:
>
>>
>> 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, USA
>> tel: 818-354-1656;  cell: 818-625-6498;  fax: 818-393-6720
>>
>>
> <MLI3.pdf>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mitgcm.org/pipermail/mitgcm-devel/attachments/20100407/c244020c/attachment-0001.htm>