Sediment budget in the Ucayali River basin, an Andean tributary of the Amazon River

• Autores: Santini, W., Martinez, J.-M., Espinoza-Villar, R., Cochonneau, G., Vauchel, P., Moquet, J.S., Baby, P., Espinoza, J.C., Lavado-Casimiro, W., Carranza, Jorge, Guyot, J.L.
• Formato: objeto de conferencia
• Fecha de Publicación: 2014
• Institución: Servicio Nacional de Meteorología e Hidrología del Perú
• Repositorio: SENAMHI-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.senamhi.gob.pe:20.500.12542/657
• Enlace del recurso: https://hdl.handle.net/20.500.12542/657
• Nivel de acceso: acceso abierto
• Materia: Precipitación; Hidrología; Budget Control; Litosfera; Erosión Hídrica; Cuencas; https://purl.org/pe-repo/ocde/ford#1.05.11; gestion de recursos hidricos de cuenca - Agua

Formation of mountain ranges results from complex coupling between lithospheric deformation, mechanisms linked to subduction and surface processes: weathering, erosion, and climate. Today, erosion of the eastern Andean cordillera and sub-Andean foothills supplies over 99% of the sediment load passing through the Amazon Basin. Denudation rates in the upper Ucayali basin are rapid, favoured by a marked seasonality in this region and extreme precipitation cells above sedimentary strata, uplifted during Neogene times by a still active sub-Andean tectonic thrust. Around 40% of those sediments are trapped in the Ucayali retro-foreland basin system. Recent advances in remote sensing for Amazonian large rivers now allow us to complete the ground hydrological data. In this work, we propose a first estimation of the erosion and sedimentation budget