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Quantifying bedform migration using multi-beam sonar

By M.A.F. Knaapen, C.N. van Bergen Henegouw and Y.Y. Hu

Abstract

The migration rates of both medium and very large dunes in a part of the North Sea were determined from high-resolution multi-beam echo soundings. From the bathymetric maps, crest positions were determined and compared. From changes in the positions of these crests relative to fixed markers, the migration rates within a tidal cycle and on a seasonal timescale were calculated. The sediment transport rates derived from the migration of the bedforms compare well with theoretical estimates of the residual transport in the area

Topics: GC
Year: 2005
OAI identifier: oai:eprints.soton.ac.uk:25100
Provided by: e-Prints Soton
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