Water stable isotopes database in Central Honduras

The inter-mountainous region of central Honduras has been experiencing abrupt urban water shortages during the last decade. Land use fragmentation to increase pasture, crop, and peri-urban areas has rapidly reduced surface water quantity and quality. Here we present a 3-yr (2018-2020) water stable isotopes database within the headwaters of the Choluteca River basin (2,949 km2). We sampled rainfall (weekly N=156; daily N=270), drilled wells (N=166; up to 300 m depth), boreholes (N =70; 4-12 m depth), and springs (N=128) to assess the spatio-temporal connectivity between rainfall and groundwater recharge elevations (MREs).