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dc.contributor.authorNaranjo, Gema
dc.contributor.authorCruz Fuentes, Tatiana
dc.contributor.authorCabrera Santana, Maria del Carmen
dc.contributor.authorCustodio Gimena, Emilio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.date.accessioned2015-10-21T17:46:00Z
dc.date.available2015-10-21T17:46:00Z
dc.date.issued2015-06
dc.identifier.citationNaranjo, G., Cruz, T., Cabrera, M.C., Custodio, E. Estimating natural recharge by means of chloride mass balance in a volcanic aquifer: northeastern Gran Canaria (Canary Islands, Spain). "Water", Juny 2015, vol. 7, núm. 6, p. 2555-2574.
dc.identifier.issn2073-4441
dc.identifier.urihttp://hdl.handle.net/2117/78085
dc.description.abstractThe chloride mass balance method was used to estimate the average diffuse groundwater recharge on northeastern Gran Canaria (Canary Islands), where the largest recharge to the volcanic island aquifer occurs. Rainwater was sampled monthly in ten rainwater collectors to determine the bulk deposition rate of chloride for the 2008-2014 period. Average chloride deposition decreases inwardly from more than 10 g center dot m(-2)center dot year(-1) to about 4 g center dot m(-2)center dot year(-1). The application of the chloride mass balance method resulted in an estimated average recharge of about 28 hm(3)/year or 92 mm/year (24% of precipitation) in the study area after subtracting chloride loss with surface runoff. The average storm runoff was estimated to be 12 hm(3)/year (9% of precipitation) for the 1980-2014 period. Runoff was sampled during scarce rainy periods, which produce surface water flow. Average recharge varies from less than a few mm/year near the coast up to 270 mm/year in the highlands (about 33% of average rainfall), with a close-to-linear increase inwardly of about 18 mm center dot year(-1)center dot km(-1). Recharge rate uncertainty corresponds to an estimated CV of 0.3-0.4 because of the short data series available.
dc.format.extent20 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia subterrània
dc.subject.lcshGroundwater recharge
dc.subject.lcshGroundwater--Spain
dc.subject.otherQuantifying groundwater recharge
dc.subject.otherContinental spain
dc.subject.otherCoastal-plain
dc.subject.otherUnited-States
dc.subject.otherArea
dc.subject.otherDeposition
dc.subject.otherUncertainty
dc.subject.otherIrrigation
dc.subject.otherCarolina
dc.subject.otherRates
dc.titleEstimating natural recharge by means of chloride mass balance in a volcanic aquifer: northeastern Gran Canaria (Canary Islands, Spain)
dc.typeArticle
dc.subject.lemacAigües subterrànies -- Recàrrega
dc.contributor.groupUniversitat Politècnica de Catalunya. GHS - Grup d'Hidrologia Subterrània
dc.identifier.doi10.3390/w7062555
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.mdpi.com/2073-4441/7/6/2555
dc.rights.accessOpen Access
drac.iddocument16980224
dc.description.versionPostprint (published version)
upcommons.citation.authorNaranjo, G., Cruz, T., Cabrera, M.C., Custodio, E.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameWater
upcommons.citation.volume7
upcommons.citation.number6
upcommons.citation.startingPage2555
upcommons.citation.endingPage2574


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