High-Resolution LiDAR Bathymetry Data for Alpine Rivers - Case Study on the River Mareit/Mareta, Italy

8 pages•Published: September 20, 2018

Katharina Baumgartner, Robert Klar and Markus Aufleger

Abstract

The many facets of river hydromorphology are of crucial importance to assess the condition of rivers. Generating new knowledge is the key in achieving the water framework objectives. Therefore, detailed bathymetric information is required for each river system to evaluate the constantly changing morphological structures and to understand hydraulic, morphodynamic and ecological processes. The technology of Airborne LiDAR Bathymetry (ALB) scanning is an innovative remote sensing method for measuring the ́underwater topography ́ of water bodies. ALB is perfectly qualified to meet the requirements at an exceptionally high resolution and sufficient accuracy. The data processing of an ALB point cloud consists of a number of specific work steps to determine the point classification (water surface, bathymetry, vegetation, ground, etc.) and to derive high-quality digital terrain models (DTM). This work shows exemplary the results of an ALB survey of the Mareit/Mareta River in South Tyrol, Italy. First, the applied analysis methodology is presented. Second, the question on the optimal bathymetric resolution for hydraulic and habitat modeling purposes is discussed.

Keyphrases: airborne lidar bathymetry, alpine rivers, morphological structures, remote sensing

In: Goffredo La Loggia, Gabriele Freni, Valeria Puleo and Mauro De Marchis (editors). HIC 2018. 13th International Conference on Hydroinformatics, vol 3, pages 199-206.

Links:	https://easychair.org/publications/paper/nj1H
	https://doi.org/10.29007/ch81

BibTeX entry

@inproceedings{HIC2018:High_Resolution_LiDAR_Bathymetry,
  author    = {Katharina Baumgartner and Robert Klar and Markus Aufleger},
  title     = {High-Resolution LiDAR Bathymetry Data for Alpine Rivers - Case Study on the River Mareit/Mareta, Italy},
  booktitle = {HIC 2018. 13th International Conference on Hydroinformatics},
  editor    = {Goffredo La Loggia and Gabriele Freni and Valeria Puleo and Mauro De Marchis},
  series    = {EPiC Series in Engineering},
  volume    = {3},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2330},
  url       = {/publications/paper/nj1H},
  doi       = {10.29007/ch81},
  pages     = {199-206},
  year      = {2018}}

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