Global database of offshore freshened groundwater records

A global database of 305 records of offshore freshened groundwater has been compiled using published information. The criteria for including records in this database include salinities of ≤33 PSU, a location of ≥1 km away from the coast, and a distance of >10 km from other records. This is an outcome of the MARCAN project. This project has received funding from the European Research Council (ERC), under the European Union's Horizon 2020 research and innovation programme (grant agreement No 677898 (MARCAN)).