Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 516615
Title Dune and alternate bar detection in a laboratory flume using a 3D laser scanner
Author(s) Ruijsscher, T.V. de; Dinnissen, S.; Vermeulen, B.; Hazenberg, Pieter; Hoitink, A.J.F.
Source In: River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. - CRC Press/Balkema - ISBN 9781138029132 - p. 1086 - 1091.
Event International Conference on Fluvial Hydraulics, RIVER FLOW 2016, St. Louis, 2016-07-11/2016-07-14
Department(s) Hydrology and Quantitative Water Management
Publication type Contribution in proceedings
Publication year 2016

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.

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