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Author Doulgeris, C.; Tziritis, E.; Pisinaras, V.; Panagopoulos, A.; Külls, C.
Title Prediction of seawater intrusion to coastal aquifers based on non-dimensional diagrams Type Conference Article
Year 2020 Publication EGU Geophysical Abstracts Abbreviated Journal
Volume Issue Pages 4073
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Notes Approved no
Call Number THL @ christoph.kuells @ Doulgeris2020prediction Serial 41
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Author Jin, Z.; Külls, C.
Title FDM based OA-ICOS for high accuracy 13C quantification in gaseous CO2 Type Journal Article
Year 2020 Publication Earth and Environmental Science Abbreviated Journal EES
Volume 446 Issue 3 Pages 032061
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Series Editor Series Title IOP Conference Series Abbreviated Series Title
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Notes Approved no
Call Number THL @ christoph.kuells @ Jin2020fdm Serial 16
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Author Christofi, C.; Bruggeman, A.; Külls, C.; Constantinou, C.
Title Hydrochemical evolution of groundwater in gabbro of the Troodos Fractured Aquifer. A comprehensive approach Type Journal Article
Year 2020 Publication Applied Geochemistry Abbreviated Journal
Volume 114 Issue Pages 104524
Keywords geochemistry
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Publisher Pergamon Place of Publication Editor
Language English Summary Language Original Title (up)
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Area Expedition Conference
Notes Approved no
Call Number THL @ christoph.kuells @ Christofi2020hydrochemical Serial 13
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Author Mahindawansha, A.; Külls, C.; Kraft, P.; Breuer, L.
Title Investigating unproductive water losses from irrigated agricultural crops in the humid tropics through analyses of stable isotopes of water Type Journal Article
Year 2020 Publication Hydrology and Earth System Sciences Abbreviated Journal
Volume 24 Issue 7 Pages 3627-3642
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Publisher Copernicus GmbH Place of Publication Editor
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Notes Approved yes
Call Number THL @ christoph.kuells @ Mahindawansha2020investigating Serial 14
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Author Christofi, C.; Bruggeman, A.; Külls, C.; Constantinou, C.
Title Isotope hydrology and hydrogeochemical modeling of Troodos Fractured Aquifer, Cyprus: The development of hydrogeological descriptions of observed water types Type Journal Article
Year 2020 Publication Applied Geochemistry Abbreviated Journal
Volume 123 Issue Pages 104780
Keywords Isotope hydrology, Hydrogeochemical modelling, Hydrochemistry, Kargiotis, Troodos
Abstract The origin of groundwater recharge and subsequent flow paths are often difficult to establish in fractured, multi-lithological, and highly compartmentalized aquifers such as the Troodos Fractured Aquifer (TFA). As the conjunctive use of stable isotopes and hydrogeochemical data provides additional information, we established a monitoring network for stable isotopes in precipitation in Cyprus. The local meteoric water line, altitude effect and seasonal variation of stable isotopes in precipitation are derived from monitoring data. Stable isotopes and hydrogeochemical data are combined to model water-rock interactions and groundwater evolution along a complete ophiolite sequence. As a result a generic hydrogeologic description for the observed water types is developed. Isotope hydrology was applied in conjunction with hydrogeochemical modelling in Kargiotis Watershed, a major north-south transect of the TFA. PHREEQC was used for hydrogeochemical modelling to establish generic descriptions for observed water types. Mean precipitation-weighted values from 16 monitoring stations were used to calculate the Local Meteoric Water Line (LMWL), which was found to be equal to δ2H = (6.58 ± 0.13)*δ18O + (12.64 ± 0.91). A general decrease of 1.22‰ for δ2H and 0.20‰ for δ18O in precipitation was calculated per 100 m altitude. A generic groundwater evolution path was established: 1. Na/MgClHCO3, 2. MgHCO3, 3. Ca/MgHCO3, 4. Ca/MgNaHCO3, 4a. MgNa/CaHCO3/Cl, 5. NaMg/CaHCO3/Cl, 6. NaHCO3, 7. Na/MgHCO3SO4, 8. NaSO4Cl/HCO3. Hydrogeologic descriptions, consisting of groundwater origin, flow path and possible active water-rock processes, have been realised for the observed water types. The first two water types occur in serpentine and ultramafic-gabbro springs. Type 3 waters represent early stages of recharge and/or short flow paths, in gabbro whereas types 4 and 5 are typical for further percolating waters in gabbro and diabase. Water types 6 and 7 occur both in diabase and in the basal group and represent the regional flow. Water type 8 is the end member of regional, upwelling groundwater in the basal group. The presented descriptions and methods have practical applications in groundwater exploration, characterization, and protection. The methodology can be applied in other complex aquifer systems.
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Language english Summary Language english Original Title (up)
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ISSN 0883-2927 ISBN Medium
Area Cyprus Expedition Conference
Notes Approved no
Call Number THL @ christoph.kuells @ Christofi2020104780 Serial 76
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