Clipping NLCD USFS Tree Canopy Change product corrupts attribute table

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02-13-2020 12:55 PM
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New Contributor

I am clipping several sub-areas from the NLCD USFS Tree Canopy Change (CONUS) product using polygons that represent study area boundaries. The goal of this process is to produce a statistical synopsis of the forest change in these sub-areas. Percent forest increase is coded in values 1 to 100 and percent forest decrease is coded in values 101 to 200.  The clip process completes but the attribute table is mangled in a way that makes it useless for my purposes. The two images below show the content of the attribute table before and after the clip. Note the second column contains the values referenced above and the third column is the count of pixels corresponding to each category of percent change. After the clip values are loaded into rows 201, 202, etc. Values in these rows have no meaning in the context of the Tree Canopy Change product. Can anyone recommend a way of clipping the raster layer such that the structure of the attribute table is not corrupted? Thanks.

Eric

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Regular Contributor

Try using the Copy Raster gp tool and "clip" the raster using the mask and extent environmental parameters. 

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Regular Contributor

Jennifer, we have been trying to reproduce this issue but have not been able to. What version of Pro are you using? Does this happen with other datasets? If so can you point to the specific dataset you are using. 

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