Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer

Vis Island is situated in southern Croatia. The island is mostly composed of karstified carbonate rocks and belongs to the Dinaric karst region, which is a locus typicus of karst landforms. Located far from the mainland, Vis island has maintained a successful water supply from its own karst aquifer...

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Main Authors: Josip Terzić, Tihomir Frangen, Staša Borović, Jasmina Lukač Reberski, Matko Patekar
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/14/3/404
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author Josip Terzić
Tihomir Frangen
Staša Borović
Jasmina Lukač Reberski
Matko Patekar
author_facet Josip Terzić
Tihomir Frangen
Staša Borović
Jasmina Lukač Reberski
Matko Patekar
author_sort Josip Terzić
collection DOAJ
description Vis Island is situated in southern Croatia. The island is mostly composed of karstified carbonate rocks and belongs to the Dinaric karst region, which is a locus typicus of karst landforms. Located far from the mainland, Vis island has maintained a successful water supply from its own karst aquifer for decades. Hydrogeological research has been undertaken to protect this excellent karst aquifer by establishing sanitary protection zones and to explore the possibility of increasing the pumping yield. New groundwater velocity data obtained via a tracer test were in accordance with the rock mass hydraulic conductivity calculated from previous pumping tests. The hydrochemical interpretation indicated several different phenomena, from carbonate and sulfate rock dissolution to seawater mixing with groundwater. A conceptual model of the island’s aquifer was improved, and two main catchments were delineated according to tracer test results, and connected with the geological setting, hydrochemical data, and new climatological insights. Such an approach is applicable for similar karst aquifers, in which topographic and hydrogeological divides usually do not coincide.
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spelling doaj.art-2aea41faf0d743fda5f8db4cb69b0df32023-11-23T18:11:12ZengMDPI AGWater2073-44412022-01-0114340410.3390/w14030404Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island AquiferJosip Terzić0Tihomir Frangen1Staša Borović2Jasmina Lukač Reberski3Matko Patekar4Department of Hydrogeology and Engineering Geology, Croatian Geological Survey, 10000 Zagreb, CroatiaDepartment of Hydrogeology and Engineering Geology, Croatian Geological Survey, 10000 Zagreb, CroatiaDepartment of Hydrogeology and Engineering Geology, Croatian Geological Survey, 10000 Zagreb, CroatiaDepartment of Hydrogeology and Engineering Geology, Croatian Geological Survey, 10000 Zagreb, CroatiaDepartment of Hydrogeology and Engineering Geology, Croatian Geological Survey, 10000 Zagreb, CroatiaVis Island is situated in southern Croatia. The island is mostly composed of karstified carbonate rocks and belongs to the Dinaric karst region, which is a locus typicus of karst landforms. Located far from the mainland, Vis island has maintained a successful water supply from its own karst aquifer for decades. Hydrogeological research has been undertaken to protect this excellent karst aquifer by establishing sanitary protection zones and to explore the possibility of increasing the pumping yield. New groundwater velocity data obtained via a tracer test were in accordance with the rock mass hydraulic conductivity calculated from previous pumping tests. The hydrochemical interpretation indicated several different phenomena, from carbonate and sulfate rock dissolution to seawater mixing with groundwater. A conceptual model of the island’s aquifer was improved, and two main catchments were delineated according to tracer test results, and connected with the geological setting, hydrochemical data, and new climatological insights. Such an approach is applicable for similar karst aquifers, in which topographic and hydrogeological divides usually do not coincide.https://www.mdpi.com/2073-4441/14/3/404karstislandhydrogeologytracer testhydrochemistrysea/freshwater relations
spellingShingle Josip Terzić
Tihomir Frangen
Staša Borović
Jasmina Lukač Reberski
Matko Patekar
Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
Water
karst
island
hydrogeology
tracer test
hydrochemistry
sea/freshwater relations
title Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
title_full Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
title_fullStr Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
title_full_unstemmed Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
title_short Hydrogeological Assessment and Modified Conceptual Model of a Dinaric Karst Island Aquifer
title_sort hydrogeological assessment and modified conceptual model of a dinaric karst island aquifer
topic karst
island
hydrogeology
tracer test
hydrochemistry
sea/freshwater relations
url https://www.mdpi.com/2073-4441/14/3/404
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AT stasaborovic hydrogeologicalassessmentandmodifiedconceptualmodelofadinarickarstislandaquifer
AT jasminalukacreberski hydrogeologicalassessmentandmodifiedconceptualmodelofadinarickarstislandaquifer
AT matkopatekar hydrogeologicalassessmentandmodifiedconceptualmodelofadinarickarstislandaquifer