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Clipping NLCD USFS Tree Canopy Change product corrupts attribute table

Question asked by Manomet on Feb 13, 2020
Latest reply on Feb 14, 2020 by pbecker-esristaff

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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