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

This dataset provides daily bias-corrected precipitation isotope data from 1 September 1947 to 31 March 2024. It contains 27,972 daily 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 for regional access. Isotope values are expressed in per mille (‰), and missing values are represented by NaN. The latitude and longitude of each grid point are encoded in its CSV file name.