What is volumetric accuracy in drone surveying? (And how to evaluate it)

Volumetric accuracy is how closely a measured volume matches the true volume on the ground, and a high-precision drone workflow delivers 97–99%, tighter than the two to five percent margin common across many photogrammetry platforms. The piece separates accuracy from resolution, explains what GSD actually does for your volumes, and flags the factor most accuracy claims skip: base surface definition, which is the quiet reason two tools can measure the same pile and disagree. The post What is volumetric accuracy in drone surveying?