Acreage calculation is off

203
2
06-24-2014 03:34 PM
Highlighted
New Contributor
I am trying to calculate the acreage in a polygon and the numbers I keep getting are 1/3 to 1/2 higher than they should be when calcalculating the area of a known polygon.  Why do I keep getting higher readings?  I am using OSIP tile data provided by the State of Ohio.
0 Kudos
2 Replies
Highlighted
MVP Esteemed Contributor
Are the polygon and the raster in the same projection?  How is acreage being calculated in both?
0 Kudos
Highlighted
New Contributor
Thanks Dan.  You were right.  The projection was not the same.  Once I was able to get all the layers on the same projection, the
acreage calculation was spot on.  Thanks for the help, Dan, I really appreciate it.
0 Kudos