A deformation analysis of a dynamic estuary using two-weekly MBES surveying
Pluymaekers, S.; Lindenbergh, R.; Simons, D.; De Ronde, J. (2007). A deformation analysis of a dynamic estuary using two-weekly MBES surveying, in: IEEE OCEANS 2007 - Europe; 18-21 June 2007. Oceans (New York), : pp. 625-630. http://dx.doi.org/10.1109/OCEANSE.2007.4302305
In: IEEE (2007). OCEANS 2007 - Europe; 18-21 June 2007. Oceans (New York). IEEE: Aberdeen . ISBN 978-1-4244-0635-7. , meer
In: Oceans (New York). IEEE: New York. ISSN 0197-7385, meer
A method is introduced and tested to analyze changes in depth and subaqueous dune parameter values in the complex topography of a multichannel estuary system. Periodic bedforms as represented by multibeam echo sounding (MBES) data are first separated from the raw topography in a filtering procedure. Then dune parameter class maps are determined from the bedform component of the data. These division in classes enables a segmentation of the area in regions of similar morphological behavior. The method is demonstrated on a time series of 17 two-weekly MBES data sets representing the estuary floor near Walsoorden in the Western Scheldt estuary. Two areas are analyzed in detail: a sand dump and its direct neighborhood and a more stable area, selected by the segmentation procedure.
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