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Meandering Evolution and Width Variation, a Physics-Statistical Based Modeling Approach

4 pagesPublished: September 20, 2018

Abstract

Many models have been proposed to simulate and understand the long-term evolution of meandering rivers. These models analyze the hydraulics of the in-channel flow and the river bank movement (erosion – accretion) process in different ways, but some gap still remain, e.g. the stability of long-term simulations when width variations are accounted for. Here we proposed a physics-statistical based approach to simulate the river bank evolution, that erosion and deposition processes act independently, with a specific shear stress threshold for each of them. In addition, we link the width evolution with a parametric probability distribution (PPD) based on a mean characteristic channel width. We are thus able to obtaining stable long-term simulations with realistic and reasonable spatio-temporal distribution of the along channel width.

Keyphrases: Long-term simulations, Meandering evolution, Meandering rivers, statistics, Width variation

In: Goffredo La Loggia, Gabriele Freni, Valeria Puleo and Mauro De Marchis (editors). HIC 2018. 13th International Conference on Hydroinformatics, vol 3, pages 1248--1251

Links:
BibTeX entry
@inproceedings{HIC2018:Meandering_Evolution_and_Width,
  author    = {Sergio Lopez Dubon and Daniele Pietro Viero and Stefano Lanzoni},
  title     = {Meandering Evolution and Width Variation, a Physics-Statistical Based Modeling Approach},
  booktitle = {HIC 2018. 13th International Conference on Hydroinformatics},
  editor    = {Goffredo La Loggia and Gabriele Freni and Valeria Puleo and Mauro De Marchis},
  series    = {EPiC Series in Engineering},
  volume    = {3},
  pages     = {1248--1251},
  year      = {2018},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2330},
  url       = {https://easychair.org/publications/paper/NC6P},
  doi       = {10.29007/qvdj}}
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