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(Article of periodic en Anglais - 2012)

Document title

Sediment export from French rivers to the sea

Authors(s) and Affiliation(s)

DELMAS M. (1 2 3) ; CERDAN O. (1) ; CHEVIRON B. (1) ; MOUCHEL J.-M. (3) ; EYROLLE F. (4) ;
(1) BRGM, RNSC, Orléans, FRANCE
(2) INRA, InfoSol Unit, Orléans, FRANCE
(3) Univ. P&M Curie, UMR Sisyphe, Paris, FRANCE
(4) IRSN, Dept. for the Environment and Response, Continental and Marine Radioecological Research Lab., Saint Paul Lez Durance, FRANCE

Abstract

Sediment fluxes were assessed using the French river quality database, which is characterized by a low temporal resolution but long-term measurement periods. An improved rating curve approach (IRCA) using daily discharge data, which allows the estimation of mean annual sediment loads from infrequent sediment concentration data, was used to calculate sediment fluxes. The 4 largest basins (Loire, Rhone, Garonne and Seine) export 81.3% of total exports. No relationship was found between the mass of exported sediment and the size of the drainage basins. This is due to the variety of river basin typologies among these rivers, including lowland rivers in temperate climates, such as the Seine on the one hand and rivers draining mountainous areas in Alpine/Mediterranean areas on the other hand, such as the Rhone. Differences between the river basins considered are also shown by temporal indicators describing the duration of the exports, which may be linked with sediment production processes over drained areas

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no7 [pp. 754-762]

Bibliographic references : 46 ref.

Collation : 5 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3219

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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