Regionalization of precipitation, its aggressiveness and concentration in the Guayas river basin, Ecuador

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dc.contributor.authorIlbay-Yupa, Mercy
dc.contributor.authorZubieta Barragán, Ricardo
dc.contributor.authorLavado-Casimiro, Waldo
dc.coverage.spatialGuayas
dc.coverage.spatialEcuador
dc.date.accessioned2019-09-11T10:32:16Z
dc.date.available2019-09-11T10:32:16Z
dc.date.issued2019-09-01
dc.description.abstractThe aggressiveness of rain contributes to the erosion of the soil in high mountain regions, and therefore to the sedimentation in the lower part of the watershed. To know about the aggressiveness of rain in coastal and Andean regions contributes to the formulation of mitigation measures that help to the reduction of erosion and loss of nutrients. Fournier indices, Modified Fournier and precipitation concentration provide the ability to estimate the spatial and temporal distribution of the aggressiveness of the rain. This study presents a spatial and temporal analysis of climatic aggressiveness in the Guayas river watershed located on the coast and the equatorial Andes. Registered monthly data of 30 rainfall stations for the period 1968-2014 was selected. Homogeneous precipitation zones were determined by the k-means method. The results indicated two predominant homogenous regions, the first located to the west in the coastal and Andean zone (85;2% of the area of the Watershed), with a high and very high aggressiveness index, while the distribution of precipitation in the second region (High mountain) resulted from very low to low aggressiveness. The greater potential aggressiveness of rain corresponds to a greater accumulation of average annual rainfall, which indicates a high seasonal influence of rainfall, i.e., a greater amount of rainfall can precipitate in a reduced number of consecutive months. The concentration values reveal a regional gradient in the east-west direction, which goes from moderately to strongly seasonal. The trend analysis of the monthly rainfall concentration shows no significant changes in the study period. However, these findings explain why the western and southern region of the Guayas river watershed is exposed to sedimentation problems in the lower part, due to the erosive capacity of rain in the higher and middle part of the watershed.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationIlbay-Yupa, M., Zubieta, R. & Lavado-Casimiro, W. (2019). Regionalization of precipitation, its aggressiveness and concentration in the Guayas river basin, Ecuador.==$La Granja: Revista de Ciencias de la Vida, 30$==(2), 52-69. https://doi.org/10.17163/lgr.n30.2019.06es_ES
dc.identifier.doihttps://doi.org/10.17163/lgr.n30.2019.06es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalLa Granja: Revista de Ciencias de la Vidaes_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/4691
dc.language.isoenges_ES
dc.publisherUniversidad Politécnica Salesianaes_ES
dc.relation.ispartofurn:issn:1390-3799
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectGuayases_ES
dc.subjectConcentrationes_ES
dc.subjectPrecipitationes_ES
dc.subjectAggressivenesses_ES
dc.subjectErosivityes_ES
dc.subjectEcuadores_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.titleRegionalization of precipitation, its aggressiveness and concentration in the Guayas river basin, Ecuadores_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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