Dataset of Isotopic Characterization and Recharge Dynamics of Karst Aquifers in a Mediterranean Basin

This dataset corresponds to monitoring conducted in the upper basin of the Llobregat and Cardener rivers during 2024 and 2025. It includes data from ten sampling campaigns carried out to collect precipitation, surface water, and groundwater samples from 30 locations across the study area. The dataset is analyzed and interpreted in the article entitled 'Isotopic Characterization and Recharge Dynamics of Karst Aquifers in a Mediterranean Basin.'"