Naslov
HETEROGENEITY OF HYDROLOGIC AND HYDROGEOLOGIC PARAMETERS IN KARST: EXAMPLE FROM DINARIC KARST

Autori
Bonacci, Ognjen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Present state and future trends of Karst studies, Proceedings of the 6th International Samposium and Field Seminar, Marmaris, Turkey, 17-26 September 2000 Volume II, IHP-V/Technical Documnets in Hydrology/No. 49, Vol.II / Gultekin, Gunay;Johnson. S. Kenneth; Ford, Derek; Johnson, A.I. - Pariz : UNESCO, IHP-V/Technical Documents in Hydrology, 2001, 393-399

Skup
Present state and future trends of Karst studies, 6th International Samposium and Field Seminar, Marmaris, Turkey, 17-26 September 2000

Mjesto i datum
Marmaris, Turska, 17.09.2000. - 26.09.2000

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Hydrology; Dinaric; Karst; heterogenity; hydrogeology; vadose zone

Sažetak
The paper deals with the heterogeneity of hydrologic and hydrogeologic parameters in karst vadose zone. The karst vadose zone (water unsaturated zone, aerated zone) is generally very deep, ranging from tens to hundreds of meters. It is area of continuous and rapid groundwater level oscillations, with water circulation primarily governed by the dynamics of the karstification processes. The key to understanding and predicting groundwater flow through karst vadose zone and karst aquifer lies in our ability to accurately define the features and locations of the heterogeneities and their hydrologic and hydrogeologic parameters. Determination of these parameters through groundwater level measurements using piezometers and discharges of karst springs is stressed as particularly useful. The hydraulic conductivity, K, is a key multidisciplinary parameter necessary for understanding and modelling karst groundwater circulation. The example of definition of K for the Ombla karst spring catchment is given. Karst vadose zone and aquifer are dynamic space in which inclinations and flow directions change rapidly, depending of groundwater level in some of its parts. Correlation analyses of groundwater levels continuously measured in a few piezometers pointed to more uniform aquifer behaviour during the descending than during the rising of the outflow karst spring hydrograph.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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