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Assessment of dam trapping efficiency from water residence time: Application to fluvial sediment transport in the Adour, Dordogne, and Garonne River basins (France)

Maneux, Eric and Probst, Jean-Luc and Veyssy, Eric and Etcheber, Henri Assessment of dam trapping efficiency from water residence time: Application to fluvial sediment transport in the Adour, Dordogne, and Garonne River basins (France). (2001) Water Resources Research, vol. 37 (n° 3). pp. 801-811. ISSN 0043-1397

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Official URL: http://dx.doi.org/10.1029/2000WR900195

Abstract

Dam-trapping efficiency can be estimated by using the hydraulic residence time. On the regional scale, the global impact of several dams can be assessed by taking into account the spatial organization of dams along the river network. Therefore, in this study, a method is proposed to estimate the global-trapping efficiency, TEw, for any watershed containing more than one dam. This method is applied to the Adour, Dordogne, and Garonne River watersheds (southwestern France). The spatial organization of dams and its impact on TEw and on sediment yields measured at 37 TSM sampling stations over 2 years are discussed. Positive correlation between drainage areas and river sediment loads corrected from dam regulation using TEw, as well as comparisons between TEw-corrected sediment yields and sediment yields measured upstream from dams, point out the interest of the method in order to reconstitute the natural sediment yields.

Item Type:Article
Additional Information:Thanks to American Geophysical Union editor. The definitive version is available at http://www.agu.org The original PDF of the article can be found at Water Resources Research website : http://www.agu.org/pubs/crossref/2001/2000WR900195.shtml
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
French research institutions > Institut de Recherche pour le Développement - IRD
Other partners > Université de Bordeaux 1 (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By: Florence Amor
Deposited On:09 Feb 2011 10:09

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