Naslov
Hydraulic-hydrology synthesis of Golubinka spring discharge hydrograph

Autori
Lončar, Goran ; Šreng, Željko ; Ivezić, Vedran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstract of The 15th International Symposium on Water Management and Hydraulics Engineering / Bekić, Damir ; Carević, Dalibor ; Vouk, Dražen - Zagreb : Građevinski fakultet Sveučilišta u Zagrebu, 2017, 31-31

ISBN
978-953-8168-16-1

Skup
15th International Symposium on Water Management and Hydraulics Engineering (15 ; 2017)

Mjesto i datum
Primošten, Hrvatska, 06.09.2017. - 08.09.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
karst, spring discharge, fracture, turbulent seepage

Sažetak
The hydraulic-hydrology results of the discharge hydrograph for karst spring Golubinka, during the period between 7.9.2012-1.10.2013, have been shown. Two approaches were conducted. First one uses the limnographic data of water level difference between sea water and fresh water side of the partition wall constructed on the spring itself, and the precipitation data from Zadar-airport ombrographic station. The calculation is based on the continuity equation. The second approach requires only the precipitation data, which is the reason he is applicable in periods where limnographic data of the fresh water level doesn't exist. The calculation is based on one- dimensional spring hydrograph model with precipitation which varies over time. Both approaches use the same data for precipitation, infiltration coefficient, effective porosity, area and geometric watershed characteristics. Assumptions were made that the Golubinka spring was the only one spring on the entire watershed, and the total infiltration volume on watershed is equal to total discharge on the Golubinka spring. The results from the first approach determine the appropriate turbulent seepage coefficient of the fracture system, and suggest a weak correlation between spring discharge and precipitation. On the other hand, formed Golubinka spring hydrograph from the first approach can be very well supported with the results from nonlinear one-dimensional groundwater seepage model in a fracture system, which cannot be said for the results of the second approach, where such a clear correlation does not exist.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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