Global monthly precipitation isotope dataset, 1947–2024 (CSV)

This dataset provides monthly bias-corrected precipitation isotope data from September 1947 to March 2024. It contains 919 monthly values of δ18O, δ2H, and d-excess for each point on a 1.25° grid covering 80°N–80°S. One CSV file is provided for each of the 37,152 grid points. The files are grouped into 72 non-overlapping geographic ZIP archives to facilitate regional download and use. Isotope values are expressed in per mille (‰), and the latitude and longitude of each grid point are encoded in its CSV file name.