Over het archief
In 2012 verloren we Jean Jacques Peters, voormalig ingenieur van het Waterbouwkundig Laboratorium (1964 tot 1979) en internationaal expert in sedimenttransport, rivierhydraulica en -morfologie. Als eerbetoon aan hem hebben we potamology (http://www.potamology.com/) gecreëerd, een virtueel gedenkarchief dat als doel heeft om zijn manier van denken en morfologische aanpak van rivierproblemen in de wereld in stand te houden en te verspreiden.
Het merendeel van z’n werk hebben we toegankelijk gemaakt via onderstaande zoekinterface.
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Estuarine channel evolution in response to closure of secondary basins: An observational and morphodynamic modeling study of the Western Scheldt Estuary Nnafie, A.; Van Oyen, T.; De Maerschalck, B.; van der Vegt, M.; Van der Wegen, M. (2018). Estuarine channel evolution in response to closure of secondary basins: An observational and morphodynamic modeling study of the Western Scheldt Estuary. JGR: Earth Surface 123(1): 167-186. https://dx.doi.org/10.1002/2017jf004364
In: Journal of Geophysical Research-Earth Surface. AMER GEOPHYSICAL UNION: Washington. ISSN 2169-9003; e-ISSN 2169-9011
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Topographic features > Channels Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries |
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Abstract |
Model results show that channels that form near a secondary basin are located further away from the bank of the estuary with respect to their positions in the case without a basin. Overall, results in cases with two or three basins are similar to those in case with one single basin. The wider the basin, the further away the nearby channel forms. Removing a secondary basin causes a lateral displacement of the nearby channel towards the bank, indicating that the observed lateral displacement of channels in the Western Scheldt is triggered by closure of its secondary basins. The physical explanation is that tidal currents in the main estuary are weaker and more rotary near secondary basins, favoring sediment deposition and shoal development at these locations. Model results are particularly relevant for estuaries with moderate to high friction and converging width. |
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