Volume XLII-2/W10
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W10, 113-117, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W10-113-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W10, 113-117, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W10-113-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

  17 Apr 2019

17 Apr 2019

IMPROVEMENTS IN LIDAR BATHYMETRY DATA ANALYSIS

H.-G. Maas1, D. Mader1, K. Richter1, and P. Westfeld2 H.-G. Maas et al.
  • 1Institute of Photogrammetry and Remote Sensing, Technische Universität Dresden, Germany
  • 2Federal Maritime and Hydrographic Agency (BSH), Section Geodetic-hydrographic Techniques and Systems, Germany

Keywords: Lidar bathymetry, geometric modelling, waveform analysis

Abstract. Airborne Lidar Bathymetry is a laser scanning technique to measure waterbody bottom topography in shallow waterbodies with limited turbidity. The topic has recently gained relevance due to the advent of new sensor technologies allowing for much higher spatial resolution in bathymetry data capture and due to guidelines demanding regular monitoring of waterbodies. In our contribution, we focus on three important aspects of lidar bathymetry: In the first part, systematic effects of wave patterns will be analysed in order to derive waterbody coordinate correction terms. In the second part, we will apply waveform-stacking techniques to enhance the detectability of water bottom points in lidar bathymetry full waveform signals. In the third part, a dedicated full wave-form analysis procedure is shown, which allows for deriving turbidity information from the decay of the signal intensity in the waterbody.