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Effect of climate on early Mars surface liquid water availability, assuming a snowmelt water source

Effect of climate on early Mars surface liquid water availability, assuming a snowmelt water source
Effect of climate on early Mars surface liquid water availability, assuming a snowmelt water source "Max:" to the top right of each map refers to the spatial maximum in melt likelihood, which is the probability that a given location sees some melting during the year. The colored contours correspond to melt likelihoods of 5% (blue), 10% (blue), 25% (cyan), 50% (yellow), 75% (bright red), and 90% (dark red) of the spatial maximum for that climate class. Black line shows the boundary between ancient terrain and recently-resurfaced terrain. Courtesy Edwin Kite