Next Article in Journal
Modelling Dissolved Oxygen/Sediment Oxygen Demand under Ice in a Shallow Eutrophic Prairie Reservoir
Next Article in Special Issue
Quantitative Spatio-Temporal Characterization of Scour at the Base of a Cylinder
Previous Article in Journal
Restoration of Eutrophic Lakes with Fluctuating Water Levels: A 20-Year Monitoring Study of Two Inter-Connected Lakes
Previous Article in Special Issue
Effects of Different In-Stream Structure Representations in Computational Fluid Dynamics Models—Taking Engineered Log Jams (ELJ) as an Example
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Water 2017, 9(2), 133; doi:10.3390/w9020133

Quantifying River Channel Stability at the Basin Scale

1
Department of Geography, University of Portsmouth, Portsmouth PO1 3HE, UK
2
School of Geography, University of Nottingham, Nottingham NG7 2RD, UK
*
Author to whom correspondence should be addressed.
Received: 1 January 2017 / Accepted: 15 February 2017 / Published: 17 February 2017
(This article belongs to the Special Issue Stream Channel Stability, Assessment, Modeling, and Mitigation)
View Full-Text   |   Download PDF [1704 KB, uploaded 19 February 2017]   |  

Abstract

This paper examines the feasibility of a basin‐scale scheme for characterising and quantifying river reaches in terms of their geomorphological stability status and potential for morphological adjustment based on auditing stream energy. A River Energy Audit Scheme (REAS) is explored, which involves integrating stream power with flow duration to investigate the downstream distribution of Annual Geomorphic Energy (AGE). This measure represents the average annual energy available with which to perform geomorphological work in reshaping the channel boundary. Changes in AGE between successive reaches might indicate whether adjustments are likely to be led by erosion or deposition at the channel perimeter. A case study of the River Kent in Cumbria, UK, demonstrates that basin‐wide application is achievable without excessive field work and data processing. However, in addressing the basin scale, the research found that this is inevitably at the cost of a number of assumptions and limitations, which are discussed herein. Technological advances in remotely sensed data capture, developments in image processing and emerging GIS tools provide the near‐term prospect of fully quantifying river channel stability at the basin scale, although as yet not fully realized. Potential applications of this type of approach include system‐wide assessment of river channel stability and sensitivity to land‐use or climate change, and informing strategic planning for river channel and flood risk management. View Full-Text
Keywords: river  channel  stability;  stream  power;  geomorphic  energy;  sediment  transport;  morphological  change;  Fluvial  Audit;  drainage  basin  scale;  watershed  assessment;  flood  risk  management; river restoration river  channel  stability;  stream  power;  geomorphic  energy;  sediment  transport;  morphological  change;  Fluvial  Audit;  drainage  basin  scale;  watershed  assessment;  flood  risk  management; river restoration
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Soar, P.J.; Wallerstein, N.P.; Thorne, C.R. Quantifying River Channel Stability at the Basin Scale. Water 2017, 9, 133.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top