Earthdata Forum

Posted: **Tue Oct 08, 2024 8:51 am America/New_York**

jcfischer wrote:
> Dear colleagues, the command combination l2bin + l3mapgen enables the
> creation of level 3 mapped image files out of level 2 files. The combined
> run of those two commands will result in mapped images of the mean of a
> selected product (in my case Kd_490) representing an indicated period of
> time (e.g. days, 8-days, months, years, ...). I would like to know whether
> there is an opportunity in SeaDAS to create the similar files but this time
> mapping the coefficient of variation (CV) and the standard variation (STD).
> This information is already there but how can I display those two
> statistical variables in a map like the one for the mean? Is there a way to
> calculate this from the created mean files or how else can this be done?
> Thanks in advance! Your help is highly appreciated. Greetings, JC

Is it possible in SeaDAS to map the coefficient of variation (CV) and standard deviation (STD) for a product like Kd_490, similar to how the mean is mapped using l2bin and l3mapgen?

Posted: **Fri Oct 11, 2024 10:45 am America/New_York**

You can add a modifier to the product requested to get different values out of the bin file. From the l3mapgen help:

Code: Select all

   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"
        Available modifiers:
            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 number

don

Earthdata Forum

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

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

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