Shape_Area vs Area (geodesic) vs Area which one is more accurate and which one should be used?

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02-21-2024 08:01 AM
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Ed_
by MVP Regular Contributor
MVP Regular Contributor

So as we know Pro adds a `Shape_Area` attribute whenever a polygon is created. In regard to this I have the following two questions:

  • Why `Shape_Area` and `Area (geodesic)` values are slightly different even though there units are the same?
  • Secondly, out of `Shape_Area`, `Area (geodesic)` and `Area`, which one is more accurate and which one should be preferred? Or maybe where does it make sense to use either of the three?
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BarryNorthey
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Ed_
by MVP Regular Contributor
MVP Regular Contributor

Thank you, this does help a bit, so is shape_area more accurate or Area (geodesic)? The data in question is using UTM Zone coordinates and both Areas have the same units i.e., square feet. 

 

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