Dune and alternate bar detection in a laboratory flume using a 3D laser scanner

T.V. de Ruijsscher, S. Dinnissen, B. Vermeulen, Pieter Hazenberg, A.J.F. Hoitink

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

Collecting high-precision data of migrating bed forms in flume experiments is often limited by the measurement equipment. With a 3D laser scanner a relatively large area of bed profiling can be monitored with high precision during the experiment. In the present study, the accuracy of such device is studied, applying corrections for internal calibration, path length and refraction. The total measurement error increases with increasing water depth and for water depths larger than 135 mm a filter should be applied to recognize a bed profile. For a sandy bed, application of a LOESS filter with different span widths leads to promising results for both dune and alternate bar patterns.

Original languageEnglish
Title of host publicationRiver Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016
PublisherCRC Press/Balkema
Pages1086-1091
ISBN (Print)9781138029132
Publication statusPublished - 2016
EventInternational Conference on Fluvial Hydraulics, RIVER FLOW 2016 - St. Louis, United States
Duration: 11 Jul 201614 Jul 2016

Conference

ConferenceInternational Conference on Fluvial Hydraulics, RIVER FLOW 2016
CountryUnited States
CitySt. Louis
Period11/07/1614/07/16

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  • Cite this

    de Ruijsscher, T. V., Dinnissen, S., Vermeulen, B., Hazenberg, P., & Hoitink, A. J. F. (2016). Dune and alternate bar detection in a laboratory flume using a 3D laser scanner. In River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016 (pp. 1086-1091). CRC Press/Balkema.