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

Página de artículo simple
dc.contributor.author Figueroa M. es_PE
dc.contributor.author Armijos E. es_PE
dc.contributor.author Espinoza J.C. es_PE
dc.contributor.author Ronchail J. es_PE
dc.contributor.author Fraizy P. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2020
dc.description.abstract Study region: The Amazonas River and its tributaries (Peru), where riparian farmers face hydrological 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 hydrological gauging stations for the Amazonas, Marañón 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 Marañón 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 Marañón 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. © 2020
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1016/j.ejrh.2020.100752
dc.identifier.scopus 2-s2.0-85094865186
dc.identifier.uri https://hdl.handle.net/20.500.12390/2448
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.relation.ispartof Journal of Hydrology: Regional Studies
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Western Amazon
dc.subject Circulation patterns es_PE
dc.subject Rainfall es_PE
dc.subject Recessional agriculture es_PE
dc.subject Repiquetes es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.11
dc.title On the relationship between reversal of the river stage (repiquetes), rainfall and low-level wind regimes over the western Amazon basin
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
Archivos
Colecciones
1.1 Eventos institucionales
 6.1 Proyectos de investigación científica