Publikation:
A multi-environmental tracer study to determine groundwater residence times and recharge in a structurally complex multi-aquifer system

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dc.contributor.authorWilske, Cornelia
dc.contributor.authorSuckow, Axel
dc.contributor.authorMeier, Christiane
dc.contributor.authorMallast, Ulf
dc.date.accessioned2024-06-16T14:04:41Z
dc.date.available2024-06-16T14:04:41Z
dc.date.issued2020
dc.description.abstractDespite being the main drinking water resource for over 5 million people, the water balance of the Eastern Mountain Aquifer system on the western side of the Dead Sea is poorly understood. The regional aquifer consists of fractured and karstified limestone - aquifers of Cretaceous age, and it can be separated into a Cenomanian aquifer (upper aquifer) and Albian aquifer (lower aquifer). Both aquifers are exposed along the mountain ridge around Jerusalem, which is the main recharge area. From here, the recharged groundwater flows in a highly karstified aquifer system towards the east and discharges in springs in the lower Jordan Valley and Dead Sea region. We investigated the Eastern Mountain Aquifer system for groundwater flow, groundwater age and potential mixtures, and groundwater recharge. We combined 36Cl†â ̆Cl, tritium, and the anthropogenic gases SF6, CFC-12 (chlorofluorocarbon) and CFC-11, while using CFC-113 as "dating" tracers to estimate the young water components inside the Eastern Mountain Aquifer system. By application of lumped parameter models, we verified young groundwater components from the last 10 to 30 years and an admixture of a groundwater component older than about 70 years. Concentrations of nitrate, simazine (pesticide), acesulfame K (ACE-K; artificial sweetener) and naproxen (NAP; drug) in the groundwater were further indications of infiltration during the last 30 years. The combination of multiple environmental tracers and lumped parameter modelling helped to understand the groundwater age distribution and to estimate recharge despite scarce data in this very complex hydrogeological setting. Our groundwater recharge rates support groundwater management of this politically difficult area and can be used to inform and calibrate ongoing groundwater flow models. © Author(s) 2020en
dc.format.extent1 Onlineresource (pages 249-267)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-921
dc.identifier.urihttps://openumwelt.de/handle/123456789/4160
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleA multi-environmental tracer study to determine groundwater residence times and recharge in a structurally complex multi-aquifer system
dc.title.alternativeA multi-environmental tracer study to determine groundwater residence times and recharge in a structurally complex multi-aquifer system
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleHydrology and earth system sciences
local.bibliographicCitation.originalDOI10.5194/hess-24-249-2020
local.bibliographicCitation.volume24 (2020), Heft 1
local.collectionAufsätze
local.contributor.authorId(DE-588)1202366341
local.contributor.authorId02185052
local.contributor.authorId00407253
local.contributor.authorId02185053
local.identifier.catalogId02477100
local.ingest.leader05431naa a2200000uu 4500
local.jointTitleA MULTIENVIRONMENTAL TRACER STUDY TO DETERMINE GROUNDWATER RESIDENCE TIMES AND RECHARGE IN A STRUCTURALLY COMPLEX MULTIAQUIFER SYSTEM
local.reviewtrue
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local.staffPublicationtrue
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relation.isAuthorOfPublication.latestForDiscoveryce3594cd-ebe2-4c3f-b297-f6af7bd4abd5
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