The first return of a lidar pulse usually indicates:
A) The height of an object
B) The elevation of the ground
C) The surface elevation above a vertical datum
D) The depth of a surface below the vertical datum

Question

Quizplus · Accepted Answer

The first return of a lidar pulse usually indicates the height of an object, as it reflects off the first surface it encounters, which could be the top of a tree, building, or other feature.

The First Return of a Lidar Pulse Usually Indicates