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dc.contributor.authorMartín Vide, Juan Pedro
dc.contributor.authorFerrer Boix, Carles
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental
dc.date.accessioned2012-07-31T08:26:09Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationMartín, J.; Ferrer, C. River incision due to gravel mining: a case study. A: IAHR Symposium on River, Coastal and Estuarine Morphodynamics. "River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics". 2011, p. 91-94.
dc.identifier.isbn978-041539375-1
dc.identifier.urihttp://hdl.handle.net/2117/16373
dc.description.abstractHistorical information was used to study river degradation in a case study in NE Spain. The accumulation of good topographical information since the 1940s for the Gállego river (a tributary of the Ebro river, which drains about 4,000 km2 of the southern slopes of the Pyrenees) enables a comparison of longitudinal bed profiles. Historical research has also revealed the volume of gravel mined, which amounts to ≈ 1 million m3 compared to the volume of alluvium lost due to incision in the same period, which is ≈ 2 million m3. This unbalance is explained by a simple model based on a bedload equation and an algorithm to determine whether effective bedload transport is controlled by transport capacity or by the supply of sediment. It follows from the analysis that the incision process has changed the magnitude of the shear stresses on the bottom. This is because, as the river becomes degraded, higher discharges fit into the main channel before spilling.
dc.format.extent4 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia
dc.subject.lcshGállego River (Spain)
dc.titleRiver incision due to gravel mining: a case study
dc.typeConference report
dc.subject.lemacRius -- Erosió
dc.subject.lemacRius -- Espanya
dc.relation.publisherversionhttp://jpmv.webs.com/Carles.pdf
dc.rights.accessRestricted access - publisher's policy
drac.iddocument9923665
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorMartín, J.; Ferrer, C.
upcommons.citation.contributorIAHR Symposium on River, Coastal and Estuarine Morphodynamics
upcommons.citation.publishedtrue
upcommons.citation.publicationNameRiver, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
upcommons.citation.startingPage91
upcommons.citation.endingPage94


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