Airborne LiDAR Bathymetry in Close Up

Hydro International published an article written by Ursula Riegl, Beatriz López García and Martin Pfennigbauer.

RIEGL tested the performance of its topo-bathymetric airborne laser scanning system, the VQ-840-G, in a transition zone context along the French Mediterranean coast. Initially planned as a UAV survey, tests were conducted using a fixed-wing aircraft due to the restrictions placed on operations by the ongoing coronavirus pandemic. The results are encouraging, and the next step will be drone operations in more challenging sea conditions.

The test was performed on March 2, 2021 at Cap Sicié, a cliff off the bay of Toulon and La Seyne sur Mer in the French Provence area of Var. To the east, an eye-catching twin rock formation, ‘Les Deux Frères’, served as a focus for data acquisition.

First analysis of the LiDAR data showed that the topographic parts provided reliable multi-echo coverage, thus well capturing terrain beneath vegetation. The seafloor in the measurement area is composed of sand, which provides good reflectance due to its color, yet causes water turbidity when disturbed.

In order to reference and validate the results, the data was compared with existing, publicly available ALB LiDAR data obtained by SHOM (the French Naval Hydrographic and Oceanographic Service).

To read the full article and learn more, click the link below.

Airborne LiDAR Bathymetry in Close Up

About RIEGL:

RIEGL is an international leading provider of cutting-edge technology in airborne, mobile, terrestrial, industrial and unmanned laser scanning solutions.

RIEGL has been producing LiDAR systems commercially and focuses on pulsed time-of-flight laser radar technology in multiple wavelengths.

RIEGL’s core technology, the digitization of LiDAR signals (“Waveform LiDAR”), provides unique methodologies for resolving range ambiguities, multiple targets per laser shots, optimum distribution of measurements, calibrated amplitudes and reflectance estimates, as well as the seamless integration and calibration of systems.

RIEGL’s Ultimate LiDARTM 3D scanners offer a wide array of performance characteristics and serve as a platform for continuing Innovation in 3D for the LiDAR industry.

From the first inquiry, to purchase and integration of the system, as well as training and support, RIEGL maintains an outstanding history of reliability and support to their customers.

Worldwide sales, training, support and services are delivered from RIEGL’s headquarters in Austria; main offices in the USA, Japan, China, Australia, the UK and Canada; and a worldwide network of representatives.

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