Sediment budget in the Ucayali River basin, an Andean tributary of the Amazon River Sediment dynamics from the summit to the sea /Santini, William /Martinez, Jean-Michel Espinoza-Villar, R. /Cochonneau, Gérard /Vauchel, Philippe Moquet, P. /Baby, Patrice Espinoza, J.C. Lavado, W. Carranza, J. /Guyot, Jean-Loup SEDIMENTATION FLUVIATILE MATIERE EN SUSPENSION EROSION METHODOLOGIE TELEDETECTION ESTIMATION BASSIN VERSANT COURS D'EAU 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 of the Ucayali River catchment, based on spatial and conventional HYBAM Observatory network. AISH Jun Xu, Y. (ed.) et al. 2015 text https://www.documentation.ird.fr/hor/fdi:010070648 fdi:010070648 Santini William, Martinez Jean-Michel, Espinoza-Villar R., Cochonneau Gérard, Vauchel Philippe, Moquet P., Baby Patrice, Espinoza J.C., Lavado W., Carranza J., Guyot Jean-Loup. Sediment budget in the Ucayali River basin, an Andean tributary of the Amazon River. In : Jun Xu Y. (ed.), et al., . Sediment dynamics from the summit to the sea AISH, ; 367). 2015, 320-325 International Symposium on Sediment Dynamics from the Summit to the Sea : ICCE2014, La Nouvelle-Orléans (USA), 2014/12/11-14 EN ANDES AMAZONIE PEROU