Hydrological dataset for the Azul watershed (Argentina)

This dataset contains the data used for the characterization of the hydrological system components and the analysis of end-members in the Azul Stream watershed, Buenos Aires, Argentina. The hydrological components considered include rainwater, unsaturated zone water, groundwater, and surface water. The dataset is provided as three complementary files: 1. HydrologicalData_Azul.xlsx – A spreadsheet containing hydrological data (stream flow and water level), physico-chemical analyses and stable isotope (δ¹⁸O ‰ and δ²H ‰) data. 2. README_HydrologicalDataset_Azul.docx – A detailed document describing the sampling procedures, analytical methods, and metadata for each variable. 3. SamplingSites_Azul.kmz – A georeferenced file showing the location of sampling sites across the Azul Stream watershed. These data support the identification of water sources and the estimation of their mixing proportions within the Azul Stream watershed.