[MITgcm-support] exf interp for smooth wind stress curl

[Matthew Mazloff]

Hi Dimitris,

I do use  bicubic interpolation on all NCEP fields -- but I still have  
some artifacts in my wind stress curl for my CASE (1/16^o) setup.  Is  
this what you are finding?

-Matt





On May 17, 2011, at 3:24 PM, Menemenlis, Dimitris (3248) wrote:

> Chris and Matt, did issue below regarding bicubic exf_interp ever  
> get resolved?
>
> Is there a way to get smooth wind stress curl for hi-res  
> integrations from coarse-res atmospheric forcing?
>
> Dimitris
>
> http://mitgcm.org/pipermail/mitgcm-support/2009-October/006305.html
>
>> Hi matt
>>
>> can you put your wind fields, grid etc... Somewhere @ MIT. I have  
>> code
>> to fix this offline, but have never found a real setup where it
>> mattered!
>>
>> Chris
>>
>>> On Wednesday, October 21, 2009, Matthew Mazloff <
>>> mmazloff at mit.edu
>>> wrote:
>>>
>>> Hello,
>>>
>>> Sorry, I do not have good news.  I ran the model and the time-mean  
>>> gradient of both wind stress (e.g. EXFtaux) and wind speed (e.g.  
>>> EXFuwind) reveal the original NCEP grid.  Basically the plot of  
>>> the curl of wind velocity looks the same as the plot I sent you  
>>> previously of wind-stress curl.  lThe problem appears not to be  
>>> the bilinear interpolation of the buoyancy forcing terms; it  
>>> appears that the bicubic interpolation of the wind velocity is not  
>>> smooth enough to yield a smooth gradient.
>>>
>>> Any ideas?
>>>
>>> -Matt
>
>
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