Uncertainty in suspended sediment load estimates for mountain rivers: case of study of Central Andes in Perú

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dc.contributor.authorMorera Julca, Sergio Byron
dc.contributor.authorMejia-Marcacuzco, Abel
dc.contributor.authorGuyot, Jean Loup
dc.contributor.authorGálvez, Carlos
dc.contributor.authorSalinas, Francisco
dc.contributor.authorCollas, Manuel
dc.contributor.authorIngol-Blanco, Eusebio
dc.coverage.spatialPerú
dc.date.accessioned2018-08-01T14:24:35Z
dc.date.available2018-08-01T14:24:35Z
dc.date.issued2013
dc.descriptionPresentado en: World Environmental and Water Resources Congress 2013: Showcasing the Future (EWRI) , 2013 American Society of Civil Engineers (pp. 3216–3225).
dc.description.abstractThis study evaluates the uncertainty in the estimation of annual and monthly sediment flows in four mountain basins of the Pacific Ocean in Peru. For this end, samples at different time scales (hourly, daily, and monthly) were recorded. The database was broken down into a numerical base to simulate several sampling frequencies. From these timing frequencies, the annual and monthly flow was computed. Likewise, we compare the observed and simulated data, calculating the degree of uncertainty using statistical tests. The results for the 25 and 75 percentiles show that there is a high temporal variability in these Andean watersheds, whose strategy of measurement of solid flows can vary from 6 to 12 days underestimating ~ 20% annually. While for estimating suspended sediment yield (SY) to a monthly time step in the rainy season (December to May), a sampling frequency between 1-5 days which would lead to a maximum error of ± 40% is needed. However, for the dry season (June to September), the sampling can be done one time per month for an error of ± 45% which is less than 2 % in an annual balance. Finally, the results show that the sampling frequency values mentioned above should be reduced to half, for exceptional events (rainy season) where the annual error estimate is around 300%.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationMorera-Julca, S., Mejia-Marcacuzco, A., Guyot, J. L., Gálvez, C., Salinas, F., Collas, M. & Ingol-Blanco, E. Uncertainty in suspended sediment load estimates for mountain rivers: case of study of Central Andes in Perú. In World Environmental and Water Resources Congress 2013: Showcasing the Future, 3216-3225. https://doi.org/10.1061/9780784412947.318es_ES
dc.identifier.doihttps://doi.org/10.1061/9780784412947.318es_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2166
dc.language.isoenges_ES
dc.publisherAmerican Society of Civil Engineers (ASCE)es_ES
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectUncertaintyes_ES
dc.subjectSuspended Sediment Loades_ES
dc.subjectSolid Flowes_ES
dc.subjectMountain Riverses_ES
dc.subjectPerúes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.titleUncertainty in suspended sediment load estimates for mountain rivers: case of study of Central Andes in Perúes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES

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