Measuring (Oblique) Wave Run-Up and Overtopping with Laser Scanners

Patrick Oosterlo, Bas Hofland, Jentsje van der Meer, Maarten Overduin, Gosse Jan Steendam, Jan-Willem Nieuwenhuis, Gerbrant van Vledder, Henk Steetzel, Michiel Reneerkens

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Wave overtopping is commonly measured using overtopping tanks. In this paper, an alternative system is developed by using two laser scanners. It measures wave run-up, as well as layer thicknesses and front velocities, both during normally and obliquely incident waves on a dike in the field. The paper considers the first field validation tests with the system, with normal and oblique waves generated by the wave run-up simulator on a grass dike slope. Furthermore, a range of environmental conditions are simulated, to determine the robustness of the system. From the measured distance and reflection, the run-up is determined, which corresponds well to the observed run-up. From the data, the layer thickness and front velocity are determined as well. Layer thicknesses and front velocities are determined reliably with the laser scanners. Also, the (virtual) wave overtopping discharge can be calculated, which corresponds well with the most commonly used overtopping
equations.
Original languageEnglish
Title of host publicationCoastal Structures 2019
EditorsNils Goseberg, Torsten Schlurmann
PublisherBundesanstalt für Wasserbau
Number of pages11
ISBN (Electronic)978-3-939230-64-9
DOIs
Publication statusPublished - 2019
EventCoastal Structures Conference 2019 - Courtyard by Marriott Hannover hotel, Hannover, Germany
Duration: 30 Sept 20192 Oct 2019
http://www.coastalstructures2019.com/

Conference

ConferenceCoastal Structures Conference 2019
Country/TerritoryGermany
CityHannover
Period30/09/192/10/19
Internet address

Keywords

  • Laser scanner
  • LIDAR
  • wave run-up
  • wave overtopping
  • layer thickness
  • front velocity
  • dike grass cover
  • field measurements

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