Reconstructed Ice-Sheet Thickness Time Series (Posterior Mean), 20 ka to Present

Posterior-mean ice-sheet thickness time series for each of the 61 sites retained in the final thinning-history reconstruction (see accompanying site metadata file), derived from a Bayesian penalized-spline fit to cosmogenic-nuclide exposure ages. Each row gives site number, age (years before present), reconstructed ice thickness (m), and site coordinates in EPSG:3031 polar stereographic projection (meters). Data are provided at native model resolution (2-year timesteps) from 20,000 years ago to present. This file reports the posterior mean of the reconstructed thickness ensemble; companion files report the corresponding 2.5th and 97.5th percentile (lower and upper 95% CI) trajectories, together characterizing the full uncertainty envelope at each site and timestep.