On the relationship between reversal of the river stage (repiquetes), rainfall and low-level wind regimes over the western Amazon basin

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dc.contributor.authorFigueroa, Manuel
dc.contributor.authorArmijos Cardenas, Elisa Natalia
dc.contributor.authorEspinoza, Jhan Carlo
dc.contributor.authorRonchail, Josyane
dc.contributor.authorFraizy, Pascal
dc.coverage.spatialAmazonía occidental
dc.date.accessioned2020-11-11T09:29:50Z
dc.date.available2020-11-11T09:29:50Z
dc.date.issued2020-12
dc.description.abstractStudy region: The Amazonas River and its tributaries (Peru), where riparian farmers face hydro-logical events that put their lowland crops at high risk of production loss during the flood recession period. Study focus: This paper analyzes the hydro-meteorological mechanisms over the Andes-Amazon basins that produce “repiquetes”, which are sudden reversals of the river stage. They are defined and characterized for the period 1996–2018 by using river stage data from three hy-drological gauging stations for the Amazonas, Mara ̃n ́on and Ucayali Rivers. Daily rainfall and low-level winds depict the large-scale atmospheric patterns associated with repiquetes. New hydrological insights: Among 73 significant repiquetes (reversal ≥20 cm) observed in the Amazonas River, 64 % were preceded by repiquetes only in the Mara ̃n ́on River, 5 % by repiquetes only in the Ucayali River, 21 % by repiquetes in both rivers and 10 % was only registered in the Amazonas River without upstream precursor. These results show that repiquetes in the Mara ̃n ́on River are the primary precursors of repiquetes in the Amazonas River. Most repiquetes are associated with abundant rainfall over the Peruvian and Ecuadorian Andes-Amazon transition region related to a remarkable change in the direction of the meridional wind, from north to south, and an easterly flow five to three days before the beginning of a repiquete in the Amazonas River.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationFigueroa, M., Armijos, E., Espinoza, J. C., Ronchail, J., & Fraizy, P. (2020). On the relationship between reversal of the river stage (repiquetes), rainfall and low-level wind regimes over the western Amazon basin.==$Journal of Hydrology: Regional Studies, 32,$==100752. https://doi.org/10.1016/j.ejrh.2020.100752es_ES
dc.identifier.doihttps://doi.org/10.1016/j.ejrh.2020.100752es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalJournal of Hydrology: Regional Studieses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/4875
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.ispartofurn:issn:2214-5818
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectRepiqueteses_ES
dc.subjectRainfalles_ES
dc.subjectCirculation patternses_ES
dc.subjectRecessional agriculturees_ES
dc.subjectWestern Amazones_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.11es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#4.01.01es_ES
dc.titleOn the relationship between reversal of the river stage (repiquetes), rainfall and low-level wind regimes over the western Amazon basines_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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