[ncl-talk] A spatial band-pass filter

[Prashanth Bhalachandran]

Hello NCL-experts, 
I am looking for a function that does a spatial band pass filtering (Gaussian low-pass filters). I checked for previous threads and I found that there are Lanczos filters in NCL. However, these appear to be specific to the temporal/frequency filtering (please correct me if I am wrong). I am looking for something spatial. 

Specifically, on the lines of: 


Any leads on this will be immensely helpful. 

Thank you, 
Prashanth 
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