The long-term response of rivers to engineering works and climate change

The long-term response of rivers to engineering works and climate change

De Vriend, H.J.

Civil Engineering and Geosciences

Hydraulic Engineering

2015-06-17

Rivers respond to changes in their geometry or their controls in various ways and at a wide range of space and time scales. The response consists of changes in properties such as cross-sectional shape and area, slope, planform pattern, bed roughness and bed sediment composition. Usually, attention for the morphological impact of engineering works focuses on short-term effects. The usually much slower, but also much more persistent large-scale response is often ignored, or countermeasures are ineffective. In many cases this has led to extra maintenance costs, in some even to hazardous situations or disaster. This paper refreshes and extends long-existing but seemingly forgotten knowledge on large-scale river behaviour. It gives examples of impacts of engineering works, climate change and sea level rise, discusses potential countermeasures and gives a number of general conclusions on the large-scale morphological behaviour of lowland rivers.

floods & floodworks
hydraulics & hydrodynamics
river engineering

http://resolver.tudelft.nl/uuid:09326701-94ee-4493-8c5a-2d96f9abc300

ICE Publishing

2016-06-17

0965-089X

https://doi.org/10.1680/cien.14.00068

Proceedings of the ICE - Civil Engineering, 168 (3), 2015

Institutional Repository

journal article

(c) 2015 Institution of Civil Engineers