[GIS] Reservoir Volume from Contour

arcgis-10.0

Volume of water in basin with reference to incremental height of DAM?

I know there's already a link that answers this question. I am not quite sure about the results from Surface Volume Tool. It seems that the results are way above what I expect.

Supposed the results show:

275, 256, 949

but the Tool provides me I am using ArcGIS 10 and I my raster surface is ASTER DEM.

I would like to do, basically, the same tasks as indicated in the link: To calculate volume from ASTER-DEM with increasing height.

Best Answer

I already found the solution to my problem:

  1. Clip raster dataset to the maximum reservoir elevation. This would provide input raster dataset to surface volume tool.
  2. Calculate volume using Surface Volume Tool assuming that the lowest elevation is the break or the damsite. For example, if the reservoir elevation is 300 masl and the damsite is at 200 masl then you can use Surface Volume Tool to calculate reservoir volume at elevation BELOW 300 masl down to 200 masl.

Hope this helps.

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