Print Email Facebook Twitter Recent erosion and sedimentation processes in the Geul river Title Recent erosion and sedimentation processes in the Geul river Author Spanjaard, G. Contributor De Moor, J. Vandenberghe, J. Date 2004-11-01 Abstract The Geul river in the southern part of the Netherlands has had a long history of channel straightening and bank protection, but during the past few decades, large stretches of the Geul have been allowed to meander freely. During fieldwork in June 2003, erosion and sedimentation processes, as well as channelisation measures, were mapped and grainsize samples were taken along a section of the Geul. Analysis of the gathered data showed that the presence of erosion in this section is positively related to sinuosity and negatively related to the presence of bank protection. Due to the presence of bank protection measures, erosion is still localised. Lateral erosion rates up to 2 meters per year have been found. Vertical aggradation rates of the pointbars do not show a clear correlation with sinuosity. Aggradation rates up to 0.15 meters per year have been found. The depth profiles of most of the pointbars show several superimposed fining-up sequences. In one of the pointbar-transects, younger sequences were found to be thicker than older sequences, possibly due to changes in sediment supply. No downstream grainsize trend has been found in the pointbars Subject meander Classification TKJ400400 To reference this document use: http://resolver.tudelft.nl/uuid:10673bfb-d3b3-42e6-a686-0de6edc742fc Publisher Vrije Universiteit Amsterdam Coordinates 50.803603, 5.915988 Source MSc thesis Quarternary Geology Part of collection Hydraulic Engineering Reports Document type report Rights (c) 2004 Guido Spanjaard Files PDF Spanjaard2004.pdf 3.67 MB Close viewer /islandora/object/uuid:10673bfb-d3b3-42e6-a686-0de6edc742fc/datastream/OBJ/view