I am currently working with multiple shape files that I have clipped to the exact same extent, but when I calculate area (acres) within each polygon.
I am getting different results between the different shape files.
Each file represents a different variable, ie: I am working with a slope polygon, aspect, vegetation, etc.
The acreage results (from calculate geometry) are similar, but not the same (9015, 10294, 8999).
There are multiple geometries, each different for each shapefile, and I am comparing the acreage sums across each shapefile that I have clipped to the same size.
The plotted clipped extents are mostly just squares with some irregular shaped polygons.
Fixing the topology errors did not make the acreage's equal. They are all on the same projection. Fixing geometry errors did not work either.