Top row: visible wavelength surface albedo map, spectrally integrated surface albedo map, and snow and ice cover map for an aquaplanet simulation of Proxima Centauri b, using Planet 1.0 with the SOCRATES radiation scheme. Bottom row: corresponding maps for Neoproterozoic Snowball Earth. Snow cover over sea ice or land produces the strongest surface albedo response in both simulations most prominently in the VIS (290 to 690 nm) band.