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Raster cell values not summing correctly after Mosaic to Raster

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06-28-2022 02:25 PM
Hayley
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Frequent Contributor

Hi there, 

I have a series of individual raster layers which have been merged into 4 "group" (different category for each) rasters using Mosaic to Raster. 

I am now merging the 4 group rasters into a final raster which sums all the pixel values. 

All my rasters are 16-bit signed and the individual rasters sum correctly to the value of the 4 group values. 

However in the final mosaic to raster (summing the 4 group rasters), there are random discrepancies of pixel values not adding up correctly when clicking on areas across the surface. I have checked that they are all assigned the same pixel type and are all snapped to the same reference raster. 

Any pointers on what might be going on here?

HL
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