We used aerial LiDAR to survey a densely vegetated area varying from grass/brambles through to mature trees and shrubs to understand ground levels and the terrain. The large area was inaccessible using traditional surveying methods.
Sometimes it’s not possible to navigate around a site due to heavy vegetation and sometimes a traditional survey is not possible without expensive vegetation clearance. Using aerial LiDAR overcomes these major issues as the data is captured from the air using a drone with a specialised LiDAR unit attached.
Aerial LiDAR is an airborne version of terrestrial laser scanning where the system can collect over 700,000 points per second with an average surface density of >700 points per square meter.
Aerial LiDAR can be used for forest inventory, floodplain mapping, hydrology, landscape ecology, coastal engineering, landslide monitoring, erosion and deformation monitoring, survey assessments and volumetric calculations.