I've done quite a bit of research here and elsewhere and am still having trouble coming up with a solution for measuring volumes using a DEM derived from high-resolution (1 m) stereo satellite imagery.
The closest solution I have found so far has been this: "How to calculate the volume of several DEMs to obtain elevation and volume changes?".
I understand that the 3D analyst extension within ArcGIS would be able to accomplish this, however, I am limited to the availability of open source software such as QGIS which I am an active user of.
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