Tracer test dataset conducted on Dinaric karst island aquifer

This dataset consists of tracer test data that was conducted in 2012 on the island of Vis (Croatia). Vis is a small and remote island, with an autonomous water supply from its own karstic aquifer. In order to determine the hydraulic properties of the aquifer, and to determine the drinking water protection zones, tracer test was performed by using Na-fluorescein dye. The dataset includes recovered dye concentrations from two boreholes with a depth of approximately 150 meters. Their coordinates and map with all sampling locations are also provided. Tracer test also proved that two respective catchments exist on the island of Vis, i.e. catchments of Korita and Pizdica. Furthermore, tracer test data represents the most reliable method for determining groundwater flow direction and speed in karst aquifers. Provided data is valuable to hydrogeologists, especially ones dealing with karst. • Provided data gives insights into groundwater flow characteristics in an island karst aquifer. Since tracer test isn`t done in a channel with the privileged flow (like a sinking stream), results are representative of rock mass, situated at the water table level in the deep karst aquifer.本数据集包含2012年在克罗地亚维斯岛（Vis）开展的示踪试验数据。维斯岛是一座小型偏远岛屿，其自主供水系统依托自身喀斯特含水层（karstic aquifer）实现。为探明该含水层的水力特征并划定饮用水水源保护区，研究团队采用荧光素钠（Na-fluorescein dye）开展了示踪试验。本数据集包含两口深度约150米钻孔的回收染色剂浓度数据，同时附带了两口钻孔的坐标信息，以及包含所有采样点位的地图。本次示踪试验还证实，维斯岛存在两处独立的汇水区（catchments），分别为科里塔（Korita）汇水区与皮兹迪察（Pizdica）汇水区。此外，示踪试验数据是探明喀斯特含水层中地下水流向与流速的最可靠手段。本数据集对水文地质学家，尤其是从事喀斯特水文地质研究的人员具有重要参考价值。 · 该数据集可揭示岛屿喀斯特含水层的地下水流特征。由于本次示踪试验并非在具有优先流通道的水体（如落水溪流）中开展，其试验结果能够代表深部喀斯特含水层潜水面处岩体的水文地质特性。