Rainfall control on Amazon sediment flux: synthesis from 20 years of monitoring

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dc.contributor.authorArmijos Cardenas, Elisa Natalia
dc.contributor.authorCrave, A.
dc.contributor.authorEspinoza, J. C.
dc.contributor.authorFilizola, N.
dc.contributor.authorEspinoza-Villar, R.
dc.contributor.authorAyes, I.
dc.contributor.authorFonseca, P.
dc.contributor.authorFraizy, P.
dc.contributor.authorGutierrez, O.
dc.contributor.authorVauchel, P.
dc.contributor.authorCamenen, B.
dc.contributor.authorMartiınez, J. M.
dc.contributor.authorDos Santos, A.
dc.contributor.authorSantini, W.
dc.contributor.authorCochonneau, G.
dc.contributor.authorGuyot, J. L.
dc.date.accessioned2020-05-21T17:51:22Z
dc.date.available2020-05-21T17:51:22Z
dc.date.issued2020-05-14
dc.description.abstractThe biodiversity and productivity of the Amazon floodplain depend on nutrients and organic matter transported with suspended sediments. Nevertheless, there are still fundamental unknowns about how hydrological and rainfall variability influence sediment flux in the Amazon River. To address this gap, we analyzed 3069 sediment samples collected every 10 days during 1995–2014 at five gauging stations located in the main rivers. We have two distinct fractions of suspended sediments, fine (clay and silt) and coarse (sand), which followed contrasting seasonal and long-term patterns. By taking these dynamics into account, it was estimated, for first time, in the Amazon plain, that the suspended sediment flux separately measured approximately 60% fine and 40% coarse sediment. We find that the fine suspended sediments flux is linked to rainfall and higher coarse suspended sediment flux is related with discharge. Additionally this work presents the time lag between rainfall and discharge, which is related to the upstream area of the gauging. This result is an important contribution to knowledge of biological and geomorphological issues in Amazon basin.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationArmijos, E., Crave, A., Espinoza, J. C., Filizola, N., Espinoza-Villar, R., Ayes, I., ... Guyot, J. L. (2020). Rainfall control on Amazon sediment flux: synthesis from 20 years of monitoring.==$Environmental Research Communications, 2$==(5), 051008. https://doi.org/10.1088/2515-7620/ab9003es_ES
dc.identifier.doihttps://doi.org/10.1088/2515-7620/ab9003es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalEnvironmental Research Communicationses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/4790
dc.language.isoenges_ES
dc.publisherIOP Publishinges_ES
dc.relation.ispartofurn:issn:1748-9326
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectSuspended sediment fluxes_ES
dc.subjectAmazon Riveres_ES
dc.subjectSiltes_ES
dc.subjectSandes_ES
dc.subjectRainfalles_ES
dc.subjectDischargees_ES
dc.subjectEmpirical modeles_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.titleRainfall control on Amazon sediment flux: synthesis from 20 years of monitoringes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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