What is the difference between a datum and a benchmark in surveying?
A datum is the overall reference system, while a benchmark is a specific physical point on the ground that records a known height or coordinate based on that datum.
For more details about datum points, read our in-depth blog.
Related Questions
What is DJI Reality?
DJI Reality is an integrated 3D model viewer in DJI Terra. It is available at no extra licensing cost.
What is Ordnance Datum in the UK?
Ordnance Datum (OD) is the standard height reference for the UK.
How do surveyors choose a datum point on a construction site?
Surveyors select a stable, accessible location and tie it to the project’s chosen datum system using GNSS or total station measurements.