[MITgcm-support] 3D forcing fields

[Jean-Michel Campin]

Hi Göran,
You may also want to look at pkg/mypackage
and could use this package to add 3-D forcing term 
(#define MYPACKAGE_TENDENCY).
Cheers,
Jean-Michel

On Wed, Nov 18, 2009 at 02:22:43PM +0100, Martin Losch wrote:
> Hi Göran,
>
> If you just want to prescribe a 3D field at certain time intervals, I'd 
> create a 3D forcing field (in FFIELDS.h) and copy/extend the input- 
> scheme of external_fields_load.F (instead of READ_REC_XY_RS  you'll have 
> to use READ_REC_XYZ_RS). If the z-dependence is a simple function of 
> depth (e.g. exp(-z/decayDepth)), I'd stick with 2D fields (because  
> reading is expensive) and add the vertical function to  
> external_forcing_u/v (external_forcing.F)
>
> Alternatively, you can do the whole reading stuff in pkg/exf (where  
> you'd have to create new fields too, EXF_FIELDS.h and exf_getforcing.F).
>
> Martin
>
> On Nov 18, 2009, at 2:03 PM, Gøran Brostrøm wrote:
>
>> Dear MITgcm friends
>>
>> I work on implementing surface wave forcing on an ocean model. The  
>> forcing from the surface waves will be 3-Dimensional and change with  
>> time (i.e., the extra forcing from the surface waves will appear as a 
>> 3D source term that changes with depth and time in the ocean model). 
>> For forcing on the surface you use periodicExternalForcing=.TRUE, set 
>> an externForcingPeriod and provide e.g., zonalWindFile to include a 
>> forcing field that changes in time.
>>
>> Is there any prebuilt routine for supplying the same type of forcing  
>> for a full 3-dimensional forcing fields. If no, any suggestion for the 
>> easiest hack. Is it to make e.g., zonalWindFile 3D?
>>
>> Sincerely
>> Göran Broström
>>
>>
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>
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