[MITgcm-support] external forcing wind

[Dattilo, Francesco]

Thank you very much for the answer Manfredi,

However, still having set the same options you provided to me, if I run the
model like this I receive this warning:

"** WARNING ** DARWIN_EXF_READPARMS: default constant wind speed ',windconst
<https://gud.mit.edu/darwin3/ident?v=darwin3;i=windconst>,' m/s is used'"

This seems because I have to set "darwin_useEXFwind = .TRUE." and
"DARWIN_haveWind = .FALSE" in data.darwin.

My confusion comes from this, because in the example mentioned before there
is no reference to these two boolean values.

Do you have any ideas about it?

Thank you very much

Francesco

Il giorno mer 5 lug 2023 alle ore 17:42 Manfredi Manizza <mmanizza at ucsd.edu>
ha scritto:

> Hi Francesco,
>
> it depends on the files and the set-up.
>
> Normally on a 3D domain set-up you would use "data.exf" where you
> specify the input file of wind speed if you use interannual winds as in
> ECCO.
> So you do not read that from the "data" file but it seems not to be your
> case....
>
> You might want to check this 1-D set-up of the ross sea:
>
>
> https://github.com/MITgcm-contrib/ecco_darwin/tree/master/idealized/1D_darwin/ross_sea/run
>
> It might give you a hint about how to read the wind in your 1-D case.
>
> In this experiment the wind forcing is read in the "data" file.
>
> Here a file where to follow the correct options:
>
>
> https://github.com/MITgcm-contrib/ecco_darwin/blob/master/idealized/1D_darwin/ross_sea/code/EXF_OPTIONS.h
>
> I never used it but I hope this can be useful for you to set-up yours
> correctly.
>
> Good luck.
>
> Manfredi
>
>
>
>
>
>
> On Wed, Jul 5, 2023 at 2:15 AM Dattilo, Francesco <fdattilo at ogs.it> wrote:
>
>> Hi everyone,
>>
>> I'm working with the Darwin package. I'm a bit confused about how to set
>> wind as external forcing.
>> I saw that it is possible to specify the zonal wind and the meridional
>> wind in the "data" file, and this seems to be consistent with the example
>> <https://urldefense.com/v3/__https://mitgcm.readthedocs.io/en/latest/examples/barotropic_gyre/barotropic_gyre.html*sec-eg-baro__;Iw!!Mih3wA!F0NpPv7kBp5gSoyJ2jM9Iva1V7k3g7RPj8LMYuP_v6xziAU6aZe1H0hJG2K2LEr1zkauGJQzZoIqHFirQA$>
>> . However, it seems that I have also another way, by modifying the
>> "data.darwin" file, specifying the windFile and "darwin_useEXFwind =
>> .TRUE." and "DARWIN_haveWind = .FALSE."
>>  but in this case it is not clear to me:
>>
>> 1) which kind of file has to be the "windFile"
>> 2) if it is correct to set "darwin_useEXFwind = .TRUE."  and
>> "DARWIN_haveWind = .FALSE."
>>
>> Using a 1D model I also don't know what's the proper choice.
>>
>> Thank you very much for every suggestion
>>
>> Best regards
>>
>> Francesco Dattilo
>> _______________________________________________
>> MITgcm-support mailing list
>> MITgcm-support at mitgcm.org
>>
>> https://urldefense.com/v3/__http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support__;!!Mih3wA!F0NpPv7kBp5gSoyJ2jM9Iva1V7k3g7RPj8LMYuP_v6xziAU6aZe1H0hJG2K2LEr1zkauGJQzZoIJYEEeUQ$
>>
>
>
> --
>
> Dr. Manfredi Manizza
> Geosciences Research Division
> Scripps Institution of Oceanography
> University of California San Diego
> 9500 Gilman Drive La Jolla, CA 92093-0244
> email : mmanizza at ucsd.edu
> tel   : +1-858-534-7094
> web   : http://bluemoon.ucsd.edu/mmanizza/
>
> web   : https://mmanizza.scrippsprofiles.ucsd.edu/
>
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