[GIS] How to make polygon volume in TIN surface

arcgis-10.1arcgis-desktopraster-calculatortinvolume

I want to measure surface volume of an area in different elevation layer.

For measuring the surface volume I have to make a Polygon Volume as well. I have problem with making this polygon over the TIN layer and define the different elevation for it ? Like the link below:

http://resources.arcgis.com/en/help/main/10.1/index.html#//00q900000037000000

for example I have a TIN surface which min contour is 25 m and max contour is 140 , then I want to measure all the surface above 25 m , 35 m and … ! I just wonder how to make this polygon on top?

Best Answer

All you need is your (clipped) TIN. You do not need a polygon (or contour lines).

You have to execute Surface Volume (3D Analyst) tool several times.

  1. Use Surface Volume (3D Analyst) with reference_plane = above and base_z = 25. You get the volume above 25 meter.
  2. Run tool again with base_z = 35. You get the volume above 35 meter.
  3. Run tool again with base_z = 45. You get the volume above 45 meter.
  4. ...

(You can automate it with Modell Builder or Python.)

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