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Pregled bibliografske jedinice broj: 900685

Časopis

Autori: Brkić, Željka; Kuhta, Mladen; Hunjak, Tamara
Naslov: Groundwater flow mechanism in the well-developed karst aquifer system in the western Croatia: Insights from spring discharge and water isotopes
Izvornik: Catena (Cremlingen) (0341-8162) 161 (2018); 14-26
Vrsta rada: članak
Ključne riječi: Recession curve ; Recession coefficient ; Correlation ; Stable isotopes ; Lumped parameter approach ; Mean residence time
Sažetak:
The spring hydrograph and the stable isotope (δ18O, δ2H) compositions in the water samples collected from the Rječina and Zvir springs and precipitation were analysed and used to characterize the karst aquifer. The recession coefficient obtained from the hydrograph analysis indicates only a fast-flow spring component at the Rječina spring. The lack of the base-flow spring component is the primary reason for the spring drying out during the dry periods. The low recession coefficient of the Zvir spring indicates a base-flow and discharge from well-drained fissures and fractures in the spring catchment area during the low water stage. A mean residence time (MRT) of groundwater was calculated for stable isotope δ18O using lumped parameter approach by applying the exponential model, combined exponential-piston and dispersion models to isotopic input (rainfall) and output (spring) data sets during 2011–2013. The MRT of 3.24 and 3.6 months for the Rječina spring and 7.2 months for the Zvir spring suggests recent groundwater recharge from precipitation.
Projekt / tema: 181-1811096-3165
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Rudarstvo, nafta i geološko inženjerstvo
URL Internet adrese: https://www.sciencedirect.com/science/article/pii/S0341816217303326
https://doi.org/10.1016/j.catena.2017.10.011
Broj citata:
Altmetric:
DOI: 10.1016/j.catena.2017.10.011
URL cjelovitog teksta:
Google Scholar: Groundwater flow mechanism in the well-developed karst aquifer system in the western Croatia: Insights from spring discharge and water isotopes
Upisao u CROSBI: Željka Brkić (zeljka.brkic@hgi-cgs.hr), 23. Lis. 2017. u 13:57 sati



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