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Determination of the maximum flows occurring in the Piura River during the El Niño 2017 [Determinación de los caudales máximos ocurridos en el río Piura durante el fenómeno El Niño 2017]

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dc.contributor.author Salazar J.R. es_PE
dc.contributor.author del Rosario Terrones Carrillo D. 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 In the southern summer of 2017, the coastal El Niño phenomenon occurred in Peru. This type of event is recurrent in this region and due to its intensity, floods occurred in the city of Piura and in the Lower Piura Valley, due to the overflowing of the river of the same name. Scenarios like this put the structures within the riverbed at risk. In order to prevent and provide a warning system that allows timely evacuation of the areas at risk, it is necessary to know the flows that occur in the river. However, there are reasonable doubts about the reliability of the gauges in Los Ejidos Dam, located upstream of the city. This is because the basin's early warning system predicted maximum flows of 2900 m3/s on March 26, 2017, based on rainfall and flow data upstream of Los Ejidos, and finally the flow measured at the dam was 3468 m3/s. At that time the uncertainty was established as to whether the forecast model was out of balance or whether the measurements at the dam had calculation errors. This article presents the calculation of the flows in Los Ejidos Dam based on the collection of data recorded in the dam by the operator, Chira Piura Special Project (PECHP), during the period from January to May 2017, strictly following the existing literature, as well as the operation manuals. From the results obtained, it can be seen that the structure works alternately under a submerged and non-submerged regime, in addition to the fact that the greatest contribution to the flow comes from the free spillway, followed by the floodgate spillway and the cleaning channel. On the other hand, the flow obtained from the levels recorded during the El Niño 2016-2017 phenomenon differs by 16% from the maximum value reported. © 2020 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.18687/LACCEI2020.1.1.275
dc.identifier.scopus 2-s2.0-85096752853
dc.identifier.uri https://hdl.handle.net/20.500.12390/2605
dc.language.iso eng
dc.publisher Latin American and Caribbean Consortium of Engineering Institutions
dc.relation.ispartof Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Spillway
dc.subject El Niño phenomenon es_PE
dc.subject Flow es_PE
dc.subject Gate es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#2.07.02
dc.title Determination of the maximum flows occurring in the Piura River during the El Niño 2017 [Determinación de los caudales máximos ocurridos en el río Piura durante el fenómeno El Niño 2017]
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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