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Lookup NU author(s): Joe Haines, Dr Maria-Valasia PeppaORCiD, Dr Chris Iliadis, Professor Jon MillsORCiD, Dr Vassilis GlenisORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2025 Joseph C. Haines et al.The importance of accurate and reliable DTMs are paramount for hydrodynamic modelling. Currently, bathymetry is either not considered or a simpler mathematical representation of the river is created from observed cross sections for hydrodynamic models. Topographic and Bathymetric LiDAR creates centimetre resolution bathymetry and topography. However, it has not been applied into large scale hydrodynamic modelling. Following a major flood event in September 2024, a large fieldwork campaign on the Pielach River, Lower Austria, was conducted to capture the environmental changes using Topographic-Bathymetric LiDAR. Metre resolution DTMs of the bathymetric and topographic environment were created to produce flood inundation maps from crewed and uncrewed aerial mapping systems. Using the observed flow data of the September 2024 storm, resulting flood models prove the inclusion of bathymetry can produce reliable flood models with depths of greater than 6 m modelled. Due to the lower flying altitude and tactical flight paths of ULSs, it is possible to identify regions occluded by vegetation that would otherwise be overlooked by crewed Airborne Laser Scanning methods to produce more reliable flood models.
Author(s): Haines JC, Peppa MV, Iliadis C, Mills JP, Glenis V, Mandlburger G
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 3D Underwater Mapping from Above and Below – 3rd International Workshop
Year of Conference: 2025
Pages: 115-122
Online publication date: 07/07/2025
Acceptance date: 02/04/2025
Date deposited: 04/08/2025
ISSN: 1682-1750
Publisher: International Society for Photogrammetry and Remote Sensing
URL: https://doi.org/10.5194/isprs-Archives-XLVIII-2-W10-2025-115-2025
DOI: 10.5194/isprs-Archives-XLVIII-2-W10-2025-115-2025
Series Title: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
