Research Outputs

We show the biodiversity recovery from 15 years flood risk adaptation that consider nature requirements building a spatial extension to calculate biodiversity scores.

08/11/2017 by Menno Straatsma et al.

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Major river interventions can greatly affect stakeholders and their connection to the river landscape. We show how recreationists’ perceptions of nature and landscape influence their expectations about a pilot intervention in the Waal river.

16/01/2018 by Wessel Ganzevoort et al.

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We inform stream restoration in peat-filled valleys by looking at the relative position of the erodible material to explain the origin of the stream bends in the Drentsche Aa area.

07/12/2016 by Jasper Candel et al.

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We reveal the existence of two additional mechanisms under which the 2D system of equations does not provide a unique solution.

11/04/2019 by Victor Chavarrias et al.

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Comparison between different methods and approaches that were used in case studies from Spain, Germany, Switzerland, the Netherlands, and Denmark.

06/06/2019 by Laura Verbrugge 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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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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Our aim is to provide modelers of river morphodynamics with the mathematical tools to detect the occurrence of ill-posedness in their results.

13/02/2018 by Victor Chavarrias et al.

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Seven flood reduction measures along the Waal river were ranked according to the water level reduction and the displaced material for their implementation.

01/03/2018 by Menno Straatsma et al.

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