Read me file for atat_supplement. Please read Ely et al., GMD ATAT 1.1, an Automated Timing Accordance Tool for comparing ice-sheet model output with geochronological data for more details. Below are details of the files contained within this supplement: readme.txt - this file GNU_licence.txt - licence file ATATv1.1.py - ATAT python code for comparing geochronological data and ice sheet model output. ATATv.1.1.py3 - As above, but python version 3. deglacial_ages_example.nc - example geochronological data. world_ex.nc - example ice sheet model output.