[MITgcm-support] Using wind from exf in DIC package

[Matthew Mazloff]

Hi Hajoon

Another option is that the BLING package does use EXF wspeed. 
If you use the original bling 
#define USE_BLING_V1
in BLING_OPTIONS.h
it is very similar (i.e. compatible with inputs) to the DIC package and it takes wind directly from EXF when useEXF = true.

You can see MITgcm/verification/global_oce_biogeo_bling
for example inputs.

Matt





> On Jun 24, 2021, at 7:53 AM, Jonathan Lauderdale <jml1 at mit.edu> wrote:
> 
> Dear Hajoon,
> 
> Martin is correct that it’s not implemented - best place to start is dic_fields_update.F which is where pkg/dic gets its sea ice cover from elsewhere.
> 
> Cheers,
> 
> Jon
> ___________________________________________________________________________
> Dr. Jonathan M. Lauderdale
> Research Scientist
> Department of Earth, Atmosphere and Planetary Sciences 
> Massachusetts Institute of Technology 
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> 
> 
> 
>> On Jun 24, 2021, at 2:58 AM, Martin Losch <Martin.Losch at awi.de <mailto:Martin.Losch at awi.de>> wrote:
>> 
>> Hi Hajoon,
>> 
>> it’s probably not implemented, but what keeps you from using the exf variable wspeed (or sh) to overwrite “wind” of dic? 
>> Add an “#include EXF_FIELDS.h” and then the variable is avaialble. You could even use #ifdef ALLOW_EXF/#else/#endif and possibly “IF (useEXF) ” to switch between the two winds.
>> 
>> Martin
>> 
>>> On 24. Jun 2021, at 04:39, Hajoon Song <hajsong at mit.edu <mailto:hajsong at mit.edu>> wrote:
>>> 
>>> Dear all,
>>> 
>>> I wonder if there is an option to use the wind speed loaded or calculated in EXF package for the piston velocity in DIC package.
>>> I am interested in whether the relative wind (useRelativeWind) can have a sizable impact on the air-sea CO2 exchange.
>>> 
>>> Currently, it seems that the wind speed is either initialized by 5 m/s or provided by DIC_windFile.
>>> Or the wind speed can be updated when using “ALLOW_OCN_COMPON_INTERF” and “useImportWSpd”.
>>> 
>>> I would appreciate it if you can correct me if I am wrong.
>>> 
>>> Best regards,
>>> Hajoon 
>>> 
>>> 
>>> ---------------------------------------------
>>> Hajoon Song, Assistant Professor
>>> Department of Atmospheric Sciences
>>> Yonsei University, Seoul, Korea
>>> Tel: +82-2-2123-2579
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>>> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
>> 
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