[MITgcm-support] exf interp

[Matthew Mazloff]

Hi Dimitris,

Ah yes, I see this now.  Very nice.  Unfortunately the gridding is  
still noticeable in my plots of wind speed gradient.  I am able to  
pick out the exact locals where the forcing is prescribed -- meaning  
the interpolation is not smooth.  This is not good for plotting wind- 
stress curl. Have you noticed this on your high-res set-ups?  Do you  
think this is a problem?  Should we (can we) try a smoother interp  
method?

-Matt





On Oct 16, 2009, at 5:03 PM, Dimitris Menemenlis wrote:

> Matt, I hardcoded bilinear interpolation for tracer fields because  
> overshoots can be problematic and bicubic for wind velocity (see  
> exf_set_uv.F) for stress fields because the second derivative  
> matters.  I would recommend to leave as is.  Other combinations can  
> (or did) cause trouble.  Dimitris
>
> On Oct 16, 2009, at 3:21 PM, Matthew Mazloff wrote:
>
>> Hello,
>>
>> It appears the model is equipped to do both bilinear and bicubic
>> interpolation for exf_interp.F.  Interp_method, however, is hardcoded
>> to bilinear interpolation.  This does matter for my 1/16 degree set-
>> up.  Can anyone confirm that the bicubic interpolation is ok -- and I
>> can go ahead and use this option.
>>
>> -Thanks,
>> Matt
>>
>>
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