On the estimation of the bed-material transport and budget along a river segment: application to the Middle Loire River, France

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dc.contributor.authorCamenen, B.
dc.contributor.authorGrabowski, Robert C.
dc.contributor.authorLatapie, A.
dc.contributor.authorPaquier, A.
dc.contributor.authorSolari, L.
dc.contributor.authorRodrigues, S.
dc.date.accessioned2017-10-31T09:33:02Z
dc.date.available2017-10-31T09:33:02Z
dc.date.issued2015-10-28
dc.description.abstractSediment load and budgets are a fundamental component of the process-based hydromorphological framework developed by the REFORM project, and are needed to accurately assess the current condition of a river, its sensitivity to change, and its likely future evolutionary trajectory. This paper presents an evaluation of three different methods for estimating both bedload sediment transport and bed-material budget within river channels, using the Middle Loire River as a case study. The first method is based on the stream power concept and does not need any hydraulic calculations. It yields estimates of the sediment transport in the same order of magnitude as measurements but poor results for the bed-material budget in terms of magnitude and tendency. For the second method, hydraulic parameters are computed using the Manning–Strickler equation (or a 1D hydraulic model for steady flow). It provides useful indicators for understanding river dynamics but does not yield significant improvements compared to the first method. The third method uses 1D numerical software for water flow and river bed evolution. It yields the most accurate results for both sediment transport and bed evolution but requires more data and overall more work to construct the model. Guidance is provided on the amount of data required, the competence needed to build the models, and the predictive capability of each of the methods.en_UK
dc.identifier.citationCamenen B, Grabowski RC, Latapie A, Paquier A, Solari L, Rodrigues S, On the estimation of the bed-material transport and budget along a river segment: application to the Middle Loire River, France, Aquatic Sciences - Research Across Boundaries, Vol. 78, Issue 1, January 2016, pp. 71-81en_UK
dc.identifier.issn1015-1621
dc.identifier.urihttp://dx.doi.org/10.1007/s00027-015-0442-3
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12687
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsPublished by Springer. This is the author accepted manuscript. The final publication is available at Springer via http://dx.doi.org/10.1007/s00027-015-0442-3 Please refer to any applicable publisher terms of use.
dc.subjectSediment transporten_UK
dc.subjectSediment budgeten_UK
dc.subjectBed materialen_UK
dc.subject1D modellingen_UK
dc.titleOn the estimation of the bed-material transport and budget along a river segment: application to the Middle Loire River, Franceen_UK
dc.typeArticleen_UK

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