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Found 41 Outputs - Page 2 of 5

Absence of freshwater mussels in Europe in relation to climate-related environmental factors

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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Contains: Dataset upon request

Rivierbodemdynamiek meenemen in het ontwerp van maatregelen

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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Contains: Publication open access

Laying bare systemic river bed changes in the river Rhine

It is important to link cause-and-effect relations between bed response and their dominating triggers. This is particularly important in highly-engineered navigable rivers, where multiple influences from close-by and further away can obscure the dominating causes of local bed level changes, and thereby possibly point in the wrong direction when it comes to sustainable river management practices.

11/02/2021 by Pepijn van Denderen et al.

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Contains: Publication open access

The initial morphological impact of the longitudinal dams

Human interventions can result in changes in the equilibrium profile of rivers. It is difficult to identify the bed level changes that result from river interventions due to the various causes of bed level changes. Using wavelet filtering, we are able to isolate the effect of river interventions based on the length scale over which they occur. The method presented here can aid in verifying model results. In addition, it can be used to estimate bed level changes that occur over various spatial scales.

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

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Contains: Publication open access

Implementing participatory monitoring in river management

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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Contains: Dataset upon request

On evaluating social learning outcomes of serious games to collaboratively address sustainability problems: A Literature Review

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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Contains: Publication open access

Change from a laterally stable to meandering river – a reconstruction of the historical discharge

We show how the Overijsselse Vecht river changed from a laterally stable to a meandering river ca. 500 years ago and further developed a methodology to reconstruct the historical discharge.

31/08/2018 by Jasper Candel et al.

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Contains: Dataset access Publication open access

Ill-posedness in modeling mixed sediment river morphodynamics

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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Contains: Publication open access

Quantifying biomass production for assessing ecosystem services of riverine landscapes

An approach for quantifying the changes in the biomass growth over the Dutch Rhine tributaries due to the river interventions and floodplain vegetation management between the years 1997 and 2012.

01/05/2018 by Remon Koopman et al.

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Predicting effects of ship-induced changes in flow velocity on native and alien molluscs in the littoral zone of lowland rivers

Shipping increases local flow velocities thereby potentially decreasing species richness of freshwater mussels and snails which in turn affects ecosystem functioning and services.

12/11/2018 by Remon Koopman et al.

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Contains: Publication open access

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