[MITgcm-support] Darwin nutrient flux file units

[Christoph Voelker]

Hi Sarah-Louise,

I am not sure what internally Darwin uses as unit of nutrient
concentrations (you should be able to see it in your output), but I
would expect it to be either mol/m^3 or mmol/m^3 (the latter is equal to
micromol/liter, which is a handy unit for many nutrients).
In any case, if your concentration unit is A, then your surface flux
unit should be A*m/s, i.e. either mol/m^2/s or mmol/m^2/s.

Cheers, Christoph

On 9/2/14 1:41 PM, SL Simmons wrote:
> Hi all,
>
> I'm currently working on adding two additional darwin nutrient fluxes
> to the MITgcm, by creating and adding a darwin_PO4_fluxfile and
> darwin_NO3_fluxfile. I am getting nutrient outputs (showing that the
> files are being read in and processed) though the concentration of
> nutrients in the ocean are much higher than I was expecting after a 10
> year run. The nutrient flux file concentration in my forcing file is
> in µmol/s/m2. Does anyone know if this is correct unit?
>
> Any help appreciated!
>
> Thanks,
>
> Sarah-Louise
>
> --
> Sarah-Louise Simmons
> PhD Researcher
> Bristol Glaciology Centre
> School of Geographical Sciences
> University of Bristol
>
>
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-- 
Christoph Voelker
Alfred Wegener Institute for Polar and Marine Research
Am Handelshafen 12
27570 Bremerhaven, Germany
e: Christoph.Voelker at awi.de
t: +49 471 4831 1848

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