This is the data catalog for the upcoming paper: Planet Four: Inter- and Intra-annual Variability of Dark Regolith on Ice Coverage at the Martian South Polar Region The catalog can be automatically retrieved from here using the Python package p4tools This dataset now covers Martian Years 28 to 33 of HiRISE observations of your regions of interest. This v3.1 update repairs some issues with the previous version. This Zenodo version (but still keeping v3.1) adds a new region_names catalog for better MY33 coverage Update 3.1.1: additive: per-marking cluster std columns; all prior values unchanged.