[MITgcm-support] on the salinity flux at the ice shelf-ocean interface

[Saeid Esmaeilpour]

Hi Dear friends,
I want to give tidal Phase and amplitude data to my Model, but my data are
like amplitude in meter (m) and Phase in degree, however I think amplitude
should be in meter per second (m/s) and Phase in second (s) in MITgcm model
regarding to Seaice_obcs TestCase (input.tides/mk_tides.m).

         to convert units, when I multiply Phases by 3600 and compare with
values of Seaice_obcs TestCase I see that they are very different cause
values in Seaice_obcs TestCase are very small in negative exponent but if I
multiply phase by 3600 They will be very big such a positive exponent.
What do you think about that? and what's wrong with me?
Thanks for any idea,

Cheers,
Saeid


On Mon, Aug 7, 2017 at 12:09 PM, Martin Losch <Martin.Losch at awi.de> wrote:

> Hi Chengyan,
>
> use the diagnostic ‘SHIForcS’ to get this variable:
>             shelficeForcingS(i,j,bi,bj) =
>      &           ( shiTransCoeffS(i,j,bi,bj)
>      &           - cFac*shelfIceFreshWaterFlux(I,J,bi,bj)*mass2rUnit )
>      &           * ( saltFreeze - sLoc(I,J) )
>
> which is actually used to drive the ocean.
>
> Martin
>
> > On 5. Aug 2017, at 18:03, whale <250107302 at qq.com> wrote:
> >
> > Dear friends,
> > I am trying to diagnose the salinity budget within a sub-ice-shelf
> cavity.
> > According to the available_diagnostics.log, the SHIfwFlx (Ice shelf
> fresh water flux (positive upward) kg/m^2/s) has been output to provide the
> fresh water flux at the ice-ocean interface. It is useful to represent the
> ice shelf melting rate. However, in order to diagnose the salinity budget
> in the sub-ice-shelf cavity, I need to know how much salinity flux dose the
> SHIfwFlx account for, i.e., could the SHIfwFlx in unit of kg/m^2/s  be
> transformed into SALT flux in unit of psu?
> > Any comments and suggestions are appreciated!
> > Cheers
> > Chengyan
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