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CDO band pass

Added by Daniel Mendes about 4 years ago

Hi! I need some help. I need to use the CDO band pass filter. My data are monthly, equivalent to 33 years. I did not find any example with monthly data. I need to pass the filter between 3 to 6 years. Can you help me? I appreciate it!


Replies (3)

RE: CDO band pass - Added by Ralf Mueller about 4 years ago

hi Daniel!

Monthly data is fine for bandpass, because it takes into account the time axis of the input file. As stated in the documentation: 

All frequencies given as parameter are interpreted per year
So if you want to filter between 3-6 years time period, the respective frequencies should be 0.3333 and 0.16666 (1/3 and 1/6 per year)

hth
ralf

RE: CDO band pass - Added by Daniel Mendes about 4 years ago

I have no words to thank you other than my simple thanks.

RE: CDO band pass - Added by Ralf Mueller about 4 years ago

u r welcome

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