From source to stream: measuring and modelling sediment shape evolution in mountain catchments
A. Cattapan (TU Delft - Civil Engineering & Geosciences)
M.E. McClain – Promotor (TU Delft - Civil Engineering & Geosciences)
M.J. Franca – Promotor (Karlsruhe Institut für Technologie)
K. Katsanou – Promotor (IHE Delft Institute for Water Education)
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Abstract
If one is lucky enough to have the opportunity to follow a river from the source to the sea, one could witness its sediments changing in size and shape.
The objective of this work is motivated by a somewhat naïve, almost childish, question: “Is it possible to pick up a stone from a river and determine, just by measuring its shape, how far it has travelled?” Being able to answer this question reliably and accurately would create valuable opportunities to improve our understanding of river systems, to enhance restoration practices, infrastructure planning, and management, and to reduce natural hazards. Accurately identifying sediment pathways based on an easily measurable property would, for example, allow us to select which reaches in a network should be left free to flow, since they convey most of the sediments, or which should be more protected from erosion, since they represent major sediment sources....
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