How can I calculate 3D surface area base on slope in GIS for each morphological units in watershed?


You will need 3D analyst

Create a TIN using your polygon

  • Add Surface Information with your polygon as input feature class and the corresponding TIN as input surface.
    • Check "SURFACE_AREA" box as output property.

The 3D area is then added in a new field to your polygon feature class' attribute table.

This post provides the steps Calculating 3d polygons' surface area using ArcGIS for Desktop?

Not the answer you're looking for? Browse other questions tagged or ask your own question.