Research Outputs

Evaluating the potential implications of river interventions for local residents, recreational fishermen, boaters and shipping professionals: the perfect starting point for a participatory monitoring project!

15/06/2017 by Laura Verbrugge et al.

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In the Dutch Waal river, the bed topography of the navigational channel is measured bi-weekly. In a so-called TKI-project (cooperation between Rijkswaterstaat, HKV and Twente University) we use this data to link morphological changes to specific interventions in the river. This is not a straightforward as it may seem, because the morphological changes are the sum of small scale changes due to e.g. the presence of groynes, medium scale changes coming from the intervention and large scale changes coming from engineering measures in the (far) past to which the profile is still adjusting. A so-called wavelet analysis can be used to disentangle these different scales and enables us to focus only on the morphological changes due to the intervention. This improves river operations and maintenance and in the future also to facilitate the planning of new measures to minimize morphological impact.

01/10/2020 by Pepijn van Denderen et al.

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Side channel generally aggrade. The rate at this occurs depends on the design of the side channel. We propose three categeories of side channels which can be used to estimate the time scale of side channel development

01/11/2019 by Pepijn van Denderen et al.

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A fast and simple field technique to capture the topography of riverbanks and compute erosion rates.

25/10/2018 by Gonzalo Duró et al.

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We studied in detail the development of a side channel in the river Waal. A more frequently flowing side channel results in lower aggradation or sedimentation.

15/02/2018 by Pepijn van Denderen et al.

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A unique database was constructed on the sensitivities of all European freshwater bivalves in relation to environmental factors that are affected by global change.

23/05/2018 by Frank Collas et al.

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The river bed continuously changes on various spatial and temporal scales. Migrating river dunes are an example of local and relatively fast change. At the same time, engineering measures from the last decades cause the river bed to degrade to the present date. To be able to predict the development of the river bed, it is important to distinguish between and disentangle the various spatial and temporal scales.

13/02/2020 by Pepijn van Denderen et al.

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This systematic review examines how serious games are evaluated in relation to social learning.

12/11/2018 by Robert-Jan den Haan et al.

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Approach to improve the prediction capabilities under which the most common model does not provide a unique solution.

05/04/2019 by Victor Chavarrias et al.

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We mapped the connections between organizations involved in flood protection and nature management in the Waal River and explored the consequences of abolishing the central actor in these networks.

01/09/2015 by Jan Fliervoet et al.

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