Beschreibung
This doctoral project assesses the potential of the newly developed cutting edge technology of underwater and bathymetric laser scanning and combining it with conventional acoustic sonar techniques. By utilising the HCU research vessel DVocean parallel to other survey platforms as USVs and UAVs challenges and new research fields arise. One main investigation will lay on the hardware integration and sensor examinations of the newly developed laser scanners operated from under and above water. A close development cooperation with Fraunhofer IPM in Freiburg will support this goal. The second focus will then be laid on combined surveys of lidar technology and acoustic MBES technology. Combining both technologies will allow improved and continuous monitoring of the water-land transition zone by covering bathymetry below 3 m with acoustic devices operated from a survey vessel as the DVocean or an USV, detailed structures as e.g. men-made constructions with underwater laser scanners, as well operated ship- or USV-borne, and very shallow water zones and emerged topography by topobathymetric laser scanners operated UAV-borne. The final objective is then developing an automated process for the creation of a combined data model from submerged and emerged topography.Current scientific investigations promise high potential in underwater laser scanning as well as topobathymetric laser scanning, however, they also highlight the need of extensive field tests, independent accuracy assessments and the development of calibration routines as well as data optimization for increased usability and integration with other data sets for combined interpretation.
| Zeitraum | 21 Aug. 2024 → … |
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