Water isotopologues of near-surface polar snow from short (1-m) snow cores, extracted from the EastGRIP site on Greenland Ice Sheet during summers 2017-2019 with age-depth model (timeIndex_manualConstModel)

1-day age-depth resolution snow core isotope data (dD, d18O, dxs, dxsln) from EastGRIP, Greenland. An age-depth model has been applied based on when peak monthly temperatures occur. In the absence of constrained peak temperatures, a manual assignment of end date for the core was made based first on the mean accumulation for the relevant time period was used for the age-depth model and then the likely timing of the final d18O values.