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Aquifer recharge estimation through atmospheric chloride mass balance at Las Cañadas Caldera, Tenerife, Canary Islands, Spain

dc.contributor.authorMarrero-Diaz R.
dc.contributor.authorAlcalá F.J.
dc.contributor.authorPérez N.M.
dc.contributor.authorLópez D.L.
dc.contributor.authorMelián G.V.
dc.contributor.authorPadrón E.
dc.contributor.authorPadilla G.D.
dc.date.accessioned2020-09-02T22:22:22Z
dc.date.available2020-09-02T22:22:22Z
dc.date.issued2015
dc.identifier10.3390/w7052451
dc.identifier.citation7, 5, 2451-2471
dc.identifier.issn20734441
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5208
dc.descriptionThe atmospheric chloride mass balance (CMB) method was used to estimate net aquifer recharge in Las Cañadas Caldera, an endorheic summit aquifer area about 2000 m a.s.l. with negligible surface runoff, which hosts the largest freshwater reserve in Tenerife Island, Canary Islands, Spain. The wet hydrological year 2005-2006 was selected to compare yearly atmospheric chloride bulk deposition and average chloride content in recharge water just above the water table, both deduced from periodical sampling. The potential contribution of chloride to groundwater from endogenous HCl gas may invalidate the CMB method. The chloride-to-bromide molar ratio was an efficient tracer used to select recharge water samples having atmospheric origin of chloride. Yearly net aquifer recharge was 631 mm year-1, i.e., 69% of yearly precipitation. This result is in agreement with potential aquifer recharge estimated through an independent lumped-parameter rainfall-runoff model operated by the Insular Water Council of Tenerife. This paper illustrates basic procedures and routines to use the CMB method for aquifer recharge in active volcanic oceanic islands having sparse-data coverage and groundwater receiving contribution of endogenous halides. © 2015 by the authors.
dc.language.isoen
dc.publisherMDPI AG
dc.subjectAquifer recharge
dc.subjectChloride mass balance
dc.subjectCl/Br ratio
dc.subjectLas Cañadas
dc.subjectTenerife
dc.subjectAquifers
dc.subjectCalcium
dc.subjectGroundwater
dc.subjectGroundwater resources
dc.subjectRunoff
dc.subjectAquifer recharge
dc.subjectBulk depositions
dc.subjectChloride contents
dc.subjectChloride mass balance
dc.subjectCl/Br ratios
dc.subjectHydrological years
dc.subjectRainfall-runoff modeling
dc.subjectTenerife
dc.subjectRecharging (underground waters)
dc.subjectaquifer
dc.subjectbromide
dc.subjectchloride
dc.subjectestimation method
dc.subjecthalogen
dc.subjecthydrochloric acid
dc.subjectmass balance
dc.subjectprecipitation (climatology)
dc.subjectrainfall-runoff modeling
dc.subjectrecharge
dc.subjectrunoff
dc.subjectvolcanic island
dc.subjectwater table
dc.subjectCanary Islands
dc.subjectLas Canadas Caldera
dc.subjectSanta Cruz de Tenerife [(PRV) Canary Islands]
dc.subjectSpain
dc.subjectTenerife
dc.subjectTenerife
dc.titleAquifer recharge estimation through atmospheric chloride mass balance at Las Cañadas Caldera, Tenerife, Canary Islands, Spain
dc.typeArticle


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