Hydrogeology of the western part of the Drava Basin in Croatia
This 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.
