Map coefficient of variation (CV) and standard deviation (STD)

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r.faris
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Joined: Fri Aug 09, 2024 2:38 pm America/New_York
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Map coefficient of variation (CV) and standard deviation (STD)

by r.faris » Fri Aug 09, 2024 2:41 pm America/New_York

OB.DAAC - SeanBailey wrote:
> The l3mapgen program can generate maps of the standard
> deviation:   product (string) = comma separated list of
> products.        Each product can have an optional
> colon and modifier appended.        For example 
> product=chlor_a,chlor_a:stdev,Kd_490:nobs        The
> avaliable modifiers are:            avg 
>      average value (default)       
>     stdev     standard deviation   
>         var       variance 
>           nobs      number of
> observations in the bin           
> nscenes   number of contributing scenes     
>       obs_time  average observation time (TAI93) 
>           bin_num   bin ID numberFor CV,
> you'll need to do the math in SeaDAS using the Band Math function
> (output the mean and stdev with l3mapgen and compute CV from them).Sean

Hello I'm trying to calculate the coefficient of variation of a single tif file of ETa in SeaDAS can you please explain a bit how to use band math function I'm new to SeaDAS .

OB.DAAC-EDL - amscott
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Re: Map coefficient of variation (CV) and standard deviation (STD)

by OB.DAAC-EDL - amscott » Tue Oct 01, 2024 2:27 pm America/New_York

Please go to the SeaDAS website: https://seadas.gsfc.nasa.gov/ and navigate to Processing > GPT > Cookbook

There you will see a BandMaths help page.

You can also navigate to Docs > Tutorials for videos and other instructional materials.

If you navigate to Support > SeaDAS Help Pages, you will find more help resources.

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