[MITgcm-support] heat and salt budget with nonlinear free surface

[Patrick Heimbach]

Hi Ivana,

Chris Piecuch wrote a nice detailed memo that applies to the NLFS (and ECCO v4).
It can be found at
https://dspace.mit.edu/handle/1721.1/111094

Cheers
Patrick

> On Oct 2, 2017, at 7:54 PM, Cerovecki, Ivana <icerovecki at ucsd.edu> wrote:
> 
> Hi guys,
> 
> We are trying to close heat and salt budget for a run with nonlinear free surface. I was able
> to close budgets with linear free surface, using diagnostics as described in:
> 
> http://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm/doc/Heat_Salt_Budget_MITgcm.pdf?view=co&revision=1.1
> 
> However, I am not able to close the budgets with nonlinear free surface. In old mitgcm-support emails I found
> Martha's comment:
>> The TOTTEND term only works with a linear free surface.  Otherwise, you
>> should output snapshots of ETAN and THETA and use these to calculate the
>> tendency term yourself.
>> Martha
> 
> So, this is one difference. What else is different? Looking at Abhisek and Jean-Michel's document
> it is clear that with linear free surface one needs to use "Surf_corr_tend":
> 
> Surf_corr_tend = (tsurfcor- WTHMASS(ix,iy)) / (DRF(1) * hFacC(ix,iy,1))
> 
> What is the case with nonlinear free surface? Do I need such a correction with nonlinear free surface?
> 
> I would very much appreciate your help,
> many thanks,
> Ivana
> 
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 1849 bytes
Desc: not available
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20171003/8fdbaccd/attachment.p7s>