A general framework for using the rate law to simulate morphological response to disturbance in the fluvial system

Auteur(s) et Affiliation(s)



Description :
The framework includes 3 morphological response models, each developed from the fundamental rate law, which has the form of an exponential decay function. These models consider the possibility that characteristic behaviours of the fluvial system, such as delayed response and/or cumulative effects, may affect morphological responses, making them capable of representing relaxation paths and times for a range of morphological response variables, whatever their initial states. To test their utility, the models in the framework were applied to simulate the sequence of geomorphological responses to disruption observed in selected rivers with well-documented histories of morphological perturbation, adjustment and recovery. The results demonstrate that the models in the general framework can successfully simulate temporal and spatial patterns of morphological response in the fluvial system under a range of different circumstances.


Type de document :
Article de périodique

Source :
Progress in physical geography, issn : 0309-1333, 2012, vol. 36, n°. 5, p. 575-597, nombre de pages : 23, Références bibliographiques : 2 p.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, London, Sage Publications