Performance Assessment of High Resolution Airborne Full Waveform LiDAR for Shallow River Bathymetry

Performance Assessment of High Resolution Airborne Full Waveform LiDAR for Shallow River Bathymetry

We evaluate the performance of full waveform LiDAR decomposition algorithms with a high-resolution single band airborne LiDAR bathymetry system in shallow rivers. A continuous wavelet transformation (CWT) is proposed and applied in two fluvial environments, and the results are compared to existing echo retrieval methods. LiDAR water depths are also compared to independent field measurements. In...

Airborne Lidar Bathymetry

Morphological characterization of full waveform airborne LiDAR data Context

The main principle of remote sensing LiDAR is to send a laser pulse from a transmitter and to analyze the backscattered signal (in particular its largest amplitude) to reconstruct the 3D position of the encountered objects (to which the intensity of the wave is generally associated). Using airborne LiDAR, it is possible to obtain a series of 3D positions whose analysis is extremely interesting ...

Terrain Roughness Parameters from Full-waveform Airborne Lidar Data

As an active remote sensing technique airborne laser scanning (ALS) is able to capture the topography with high precision even for densely forested areas. Due to the high pulse repetition frequency of up to 400 kHz a high sampling rate on the ground can be achieved, which allows the description of the terrain surface in decimeter scale. In this contribution two approaches to characterize terrai...

Remote Sensing of Suspended Sediment Concentrations Based on the Waveform Decomposition of Airborne LiDAR Bathymetry

Airborne LiDAR bathymetry (ALB) has been shown to have the ability to retrieve water turbidity using the waveform parameters (i.e., slopes and amplitudes) of volume backscatter returns. However, directly and accurately extracting the parameters of volume backscatter returns from raw green-pulse waveforms in shallow waters is difficult because of the short waveform. This study proposes a new acc...