These csv files include information about the Markov Chain Monte Carlo chains for initial calibrations of the Hector simple climate model as described in a recently submitted journal article, Vega-Westhoff et al. (2019; doi: 10.1029/2018EF001082). Code that created these MCMC chains is available on github: http://doi.org/10.5281/zenodo.1472378. Files: T.csv - Chains for the calibration that includes 6 parameters from the Hector energy balance component (3 of which are statistical). Uses global average temperature as an observational constraint. TOHC.csv - Chains for the calibration that includes 9 parameters from the Hector energy balance component (6 of which are statistical). Uses global average temperature and ocean heat content as observational constraints. TOHCGICGISAIS.csv - Chains for the calibration that includes 38 paramaters from both the energy balance and sea-level Hector components. Uses global average temperature, ocean heat content, glacier and ice cap volume, Greenland ice sheet volume, and Antarctic ice sheet volume observational constraints. TTE.csv - Chains for a calibration that includes 7 parameters from the Hector model, (3 of which are statistical and one of which is from the sea-level component). Uses global average temperature and thermosteric sea-level as observational constraints. TTEGICGISAIS.csv - Chains for the calibration that includes 36 paramaters from both the energy balance and sea-level Hector components. Uses global average temperature, thermosteric sea-level, glacier and ice cap volume, Greenland ice sheet volume, and Antarctic ice sheet volume observational constraints. dais_TOHCGICGISAIS.csv - Chains for the Antarctic ice sheet component, which is calibrated separately (using paleo data). Includes corresponding indices in the TOHCGICGISAIS calibration. dais_TTEGICGISAIS.csv - Chains for the Antarctic ice sheet component, which is calibrated separately (using paleo data). Includes corresponding indices in the TTEGICGISAIS calibration. Columns: chain - which chain (we performed 4 parallel MCMC chains and just stack them here converged - Have the chains converged at this point? Using Gelman-Rubin diagnostic. Note: didn't save the pre-converged data from the Antarctic ice sheet component sample.rs - Was this one of the samples for the rejection sampling? In the calibration w/ sea level, we sampled 200k post-converged parameter sets against global sea-level data. idx.full - Only in dais_*.csv; which index in the Hector calibration was this set of Antarctic ice sheet parameters randomly paired with for the rejection sampling? survive.rs - Did this index survive the rejection sampling? sample.prob - Did this index then get sampled for the probabilistic analysis? The actual parameter sets follow. Parameters are described in the supplemental material to the paper.