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Use of Water Stable Isotopes in Hydrological Process (CROSBI ID 20335)

Autorska knjiga | monografija (znanstvena) | međunarodna recenzija

Marković, Tamara ; Karlović, Igor ; Perčec Tadić, Melita ; Larva, Ozren Use of Water Stable Isotopes in Hydrological Process. Basel: MDPI Books, 2020

Podaci o odgovornosti

Marković, Tamara ; Karlović, Igor ; Perčec Tadić, Melita ; Larva, Ozren

Vreča, Polona ; Kern, Zoltan

engleski

Use of Water Stable Isotopes in Hydrological Process

To understand groundwater flow and geochemical processes within an aquifer, it is necessary to set up a conceptual model of the aquifer. To accomplish this, different methods are used, and one of them is an isotopic technique. The study area is located in the Varaždin area (NW Croatia). The aquifer represents the main source of potable water for the town of Varaždin and the surrounding settlements. The conceptual model of the alluvial aquifer has to be set up prior to creating a groundwater flow and transport model. Measurements of ratios δ18Ο and δ2H in ground- and surface waters and precipitation samples were carried out. The relationship between ratios δ18Ο, δ2H, and d-excess for local precipitation in the study area showed that precipitation originates from the Atlantic air masses, although during the colder periods of the year, influence of the Mediterranean air masses was not negligible. The monitored period was warmer and wetter than average. Evaporation was observed at all monitored surface waters, but the largest rate was at the location of a gravel pit in Šijanec. The isotopic composition of the precipitation and groundwater showed a good correlation due to the isotopic homogenization of groundwater along the flow path

stable isotopes ; deuterium and oxygen-18 ; hydrogeological conceptual model ; alluvial aquifer ; Varaždin area

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Podaci o izdanju

Basel: MDPI Books

2020.

978-3-03943-267-7

237-251

objavljeno

Povezanost rada

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