Identifikacija utjecaja praga TE-TO na rijeci Savi na razine podzemne vode neposrednog zaobalja

master's thesis

• Title: Identifikacija utjecaja praga TE-TO na rijeci Savi na razine podzemne vode neposrednog zaobalja : diplomski rad
• Title (english): Identification of the influence of the water levels of the TE-TO supply channel on the groundwater levels of the Zagreb aquifer : master's thesis
• Author: Anđela Lijić
• Mentor: Kristijan Posavec (mentor)
• Committee member: Kristijan Posavec (predsjednik povjerenstva)
• Committee member: Jelena Parlov (član povjerenstva)
• Committee member: Zoran Kovač (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2023-02-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

U radu je određen utjecaj praga TE-TO na rijeci Savi na razine podzemne vode u neposrednom zaobalju. Analizirani su podaci o razinama podzemne vode izmjereni u odabranim piezometrima od 3. siječnja 2019. do 31. prosinca 2020. godine. Korištene su statističke metode korelacije, linearne regresije i kros-korelacije, a obrada podataka, za korelaciju i linearnu regresiju, provedena je u programu Microsoft Excel, te u namjenskom VBA programu za kros-korelaciju. Metoda korelacije za cilj je imala utvrđivanje jakosti veze između vodostaja zabilježenog na postaji Dovodni kanal TE-TO i razine podzemne vode zabilježene u piezometrima. Rezultati svih kombinacija korelacija imaju pozitivan smjer, što znači da porastom vodostaja rijeke Save raste razina podzemne vode u piezometrima. Metoda linearne regresije rezultirala je jednadžbama pravca za svaku kombinaciju obrađivanih podataka, te koeficijentima determinacije. Metodom kros-korelacije dobiveni su koeficijenti korelacije temeljem kojih je određeno zaostajanje jedne varijable (razine podzemne vode) za drugom (vodostaji rijeke Save). Primijećena je bolja povezanost vodostaja na postaji s piezometrima na lijevoj obali Save. Većom udaljenosti piezometara od mjerne postaje smanjuju se vrijednosti dobivenih koeficijenata.

Abstract (english)

The paper determines the influence of the TE-TO threshold on the Sava River on the groundwater levels in the immediate vicinity. Data on groundwater levels measured in selected piezometers from January 3, 2019 to December 31, 2020 were analyzed. Statistical methods of correlation, linear regression and cross-correlation were used, and data processing for correlation and linear regression was carried out in Microsoft Excel and in a dedicated VBA program for cross-correlation. The purpose of the correlation method was to determine the strength of the connection between the water level recorded at the station Dovodni Kanal TE-TO and the level of underground water recorded in the piezometers. The results of all combinations of correlations have a positive direction, which means that with the increase in the water level of the Sava River, the level of groundwater in the piezometers increases. The linear regression method resulted in line equations for each combination of processed data, and coefficients of determination. Using the cross-correlation method, correlation coefficients were obtained based on which the lag of one variable (groundwater level) after another (water levels of the Sava River) was determined. A better connection of the water level at the station with the piezometers on the left bank of the Sava was noticed. The greater the distance of the piezometers from the measuring station, the lower the values of the obtained coefficients.

• Keywords: rijeka Sava; prag TE-TO; piezometar; korelacija; regresija; kros-korelacija
• Keywords (english): TE-TO supply channel; piezometer; correlation; regression; cross-correlation
• Language: croatian
• URN:NBN: urn:nbn:hr:169:048215
• Study programme: Title: Geological engineering; specializations in: Hydrogeology and engineering geology, Environmental geology; Course: Hydrogeology and engineering geology; 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: Open access
• Created on: 2023-04-06 14:10:09