[MITgcm-devel] Heat flux diagnostics with pkg/seaice

[Jean-Michel Campin]

Hi Dimitris,

Thanks for this new diag. 

Regarding RunOff, I don't have a strong preference. It seems
to me that keeping runoff inside SIatmFW is slightly more 
convenient when doing a global budget (e.g., sea-level issue),
at least it was my impression when I was using thsice pkg.
And I guess (I have not checked) there is a diagnostics for runoff
alone (which is not affected by seaice), so if we need to make the 
distinction, it's always possible.
But I am not 100% sure that if we add run-off not as a surface 
flux but rather like a mass flux next to the coast (and not
necessary at surface level), my argument will still hold ...
May be changing the diagnostics description (rather than the
diagnostic itself) would avoid confusion ? 
> Net freshwater flux from atmosphere & land (+=down)

Cheers,
Jean-Michel

On Sun, Jun 21, 2009 at 04:18:07PM -0700, Dimitris Menemenlis wrote:
> Jean-Michel, I have added SIatmQnt, which I think is what you were  
> looking for.
>
> One question I have about SIatmFW is whether we should exclude runoff  
> from it
> since it is not really an atmospheric freshwater flux?
>
> An, I have also added your diagnostics SIqneto, SIqneti, SIyneg, and  
> SIfice,
> but please note that different from what you had done, SIqneto and  
> SIqneti
> are multiplied by (1-AREA) and by AREA, respectively, so you don't have
> to multiply these offline for your budget computations.
>
> D.
>
> On Jun 12, 2009, at 7:18 AM, Jean-Michel Campin wrote:
>
>> Martin and Dimitris,
>>
>> We still don't have a diagnostics for the Atmospheric (net) heat flux
>> when using seaice (the heat-flux equivalent of SIatmFW for fresh- 
>> water,
>> or the equivalent of SIflxAtm in thsice pkg).
>> Holy was trying the other day to get something meaningful out of
>> seaice_growth.F, but I was not able to see why the output was off
>> by ~200.W/m2
>> Can someone who knows (better than I do) what seaice_growth.F is doing
>> add this diagnostics ?
>> It seems to me that doing a heat budget, or knowing how much heat
>> is put in the model are quiet basic things that we should be able
>> to do routinely (without modifying the code with high chance of doing
>> it wrong).
>>
>> Thanks,
>> Jean-Michel
>
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