Procjena srednjeg vremena zadržavanja vode u vodonosniku izvora Rječine na osnovi sadržaja stabilnih izotopa kisika i vodika

master's thesis

• Title: Procjena srednjeg vremena zadržavanja vode u vodonosniku izvora Rječine na osnovi sadržaja stabilnih izotopa kisika i vodika : diplomski rad
• Title (english): Evaluation of mean residence time of waters in Rječina aquifer based on the contents of oxygen and hydrogen stable isotopes : master’s thesis
• Author: Lea Kuhta
• Mentor: Kristijan Posavec (mentor)
• Committee member: Kristijan Posavec
• Committee member: Jelena Parlov
• Committee member: Željko Duić
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2014-06-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

Izvor Rječine kroz najveći se dio godine koristi za vodoopskrbu grada Rijeke i okolnih naselja.
Izvorske vode su vrlo dobre kakvoće, te s dobrom perspektivom očuvanja. Cilj ovog rada,
načinjenog u sklopu šireg znanstveno-istraţivačkog projekta vođenog od strane Hrvatskog
Geološkog Instituta, bio je utvrditi srednje vrijeme zadržavanja vode u krškom vodonosniku izvora
Rječine na temelju promjena koncentracije stabilnih izotopa δ18O pomoću modela izrađenih u
programu Lumpy („Lumped Parameter Modelling code“). U procesu modeliranja korišteni su
eksponencijalni model i model disperzije. Dobiveni rezultati određivanja srednjeg vremena
zadržavanja vode u podzemlju nisu jednoznačni, no pokazuju da je srednje vrijeme zadržavanja
vode iz obližnjih dijelova sliva 29-51 dan, a za udaljenje dijelove sliva ono iznosi 73-117 dana.

Abstract (english)

Abstract: The Rječina river spring is used in water supply system of town Rijeka and surrounding settlements
throughout most part of the year. The spring water is of very good quality and with good
preservation perspective. The goal of this Thesis, made as a part of wider scientific research project
led by Croatian Geological Institute, was to determine the mean residence time of water in the karst
aquifer of Rječina spring based on the changes in stable isotopes 18O concentrations by using
models made in software Lumpy (“Lumped Parameter Modelling code”). In the modelling process,
exponential and dispersion models were used. The results were not unambiguous, but they show
that the mean residence time for closer parts of the basin varies from 29 to 51 days, and for more
distance parts of the basin it’s around 73-117 days.

• Keywords: krš; izvor Rječine; stabilni izotopi; modeliranje
• Keywords (english): karst; Rječina spring; stabile isotopes; modelling
• Language: croatian
• URN:NBN: urn:nbn:hr:169:341567
• Study programme: Title: Geological Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka geološkog inženjerstva (magistar/magistra inženjer/inženjerka geološkog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-01-08 11:26:32