Abstract
ABSTRACTThis paper presents a hydrogeological map of the western part of the Drava Basin in northern Croatia. An area of approximately 660 km2 is included in the hydrogeological map at a scale of 1:100,000. The map was made using ESRI ArcGIS 10 and ArcMap 10.2.1. This map describes the geometry of the Quaternary aquifer system and its hydrogeological characteristics as well as the distribution of groundwater flow. According to the values of the hydrogeological conductivity, the deposits are classified into a single hydrogeological unit. Approximately 400 boreholes and wells are identified within the map. Five 2D lithological cross-sections and five 3D hydrogeological cross-sections are displayed on the map. The distribution of the covering deposits thickness and the lithological composition of the upper part of the covering deposits are also displayed. According to its hydrogeological characteristics, the Quaternary aquifer system in the study area represents a strategic groundwater resource in Croatia.
Highlights
The increasing demand for water that can be used for drinking, agriculture and industrial purposes was noted as an incentive to produce hydrogeological maps in the middle of the last century
This paper presents a hydrogeological map of the western part of the Drava Basin in northern Croatia
The map was made using ESRI ArcGIS 10 and ArcMap 10.2.1. This map describes the geometry of the Quaternary aquifer system and its hydrogeological characteristics as well as the distribution of groundwater flow
Summary
The increasing demand for water that can be used for drinking, agriculture and industrial purposes was noted as an incentive to produce hydrogeological maps in the middle of the last century. A hydrogeological map represents a complex system of water and rocks and describes their properties and interrelations (Struckmeier & Margat, 1995) This type of map gives information regarding groundwater and any relevant aquifer systems. The hydrogeological map of the western part of the Drava Basin in northern Croatia is presented in this paper This map was constructed on the basis of investigations that were conducted for the purpose of defining the water supplies of the Koprivnica and Đurđevac areas. The northern boundary of the study area is delineated by the Drava River and the state border between Croatia and Hungary, while the southern boundary is defined by the Bilogora Mts., the western boundary is formed by the Mura Basin and the eastern part of the Drava Basin is located along the eastern boundary of the Koprivnica-Križevci County. The groundwater that accumulates in the sandy and gravelly aquifers above the Q′ marker is the main water supply source for the whole region
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