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Re: [ferret_users] climatology from different files

Hi Hanh,
You want to make a multi-file dataset (also called a descriptor file). You will create a descriptor file which lists your file names and information about the time steps. Then you can open this descriptor file in Ferret and it will appear as a single dataset.There are tools for creating a descriptor file, documented here:
The general information about this concept is here:

If you have trouble, please take a look at this thread, about multi-file datasets;

Then to compute the climatology, use the modulo regridding operation. http://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/Grids-Regions/GRIDS#Chapter4-Modulo_regridding

This operation automatically takes leap years into account.


nguyen@xxxxxxxxxx wrote:
Hi ferreters
I'd like to compute a daily climatology from a 1989-2009 data. I have one
file per year (because of the BIG size of the data I can't have all years
in one single file). Is there a easy way to obtain the climatology from
these files, considering leap years too?

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