Stockpile volumetrics are one of the highest-value, most-disputed products in geospatial work. When inventory feeds financial reporting, the method has to withstand audit.
The single biggest source of error is the base surface. A flat-plane assumption under an irregular toe can swing a volume by double digits. We model the base from surrounding terrain or a prior bare-earth capture wherever possible.
Consistent toe delineation between captures is essential for change-over-time tracking. We lock toe boundaries to a shared reference so successive volumes are genuinely comparable.
Finally, every report states its method, base surface, density assumptions and confidence range. Transparency is what makes a number auditable.