Deciphering Martian Flood Infiltration Processes at Hebrus Valles: Insights from Laboratory Experiments and Remote Sensing Observations

Dataset from a study submited to JGR-Planets about a laboratory-scale simulation of Martian outflow channel floods propagating over shallow cave systems. This repository contains all source data for the publication. This work is a joint effort of an International Team sponsored by CNES and PNP-INSU. Deciphering Martian Flood Infiltration Processes at Hebrus Valles: Insights from Laboratory Experiments and Remote Sensing Observations F. Costard1, J.A.P. Rodriguez2, E. Godin3, A. Séjourné1 and J. S. Kargel2 1 Université Paris-Sud, CNRS, GEOPS, 91405, Orsay, France 2 Planetary Science Institute, 1700 E. Fort Lowell, Suite 106, Tucson, AZ 85719 3 Centre d’Études Nordiques, Université Laval, Québec, Québec, Canada.] Introduction To investigate whether the landscapes in terminal Hebrus Valles were formed due to infiltration, we conducted a series of experiments simulating a cavernous underground system with an over-flooding scenario. Main results Hebrus Valles Mars, shows fluvially dissected sinkholes, suggesting that enormous conduits served as megaflood subsurface evacuation routes. We conducted a series of flume experiments to simulate infiltration patterns through sinkholes similar to those observed along Hebrus Valles Our scenario involves the presence of discontinuities in the Martian subsurface, due to subsurface drainage, forming organized conduits. Description of the components of the Zenodo archive Fig. 1 to Fig. 10. Vector-based components mapped in Figure 1 Data underlying the plots in Figure 7 Figure S1: Listing of HRSC and MRO images used in the study. Figures S2 to S4: time lapse of sink hole formation with unfrozen saturated sand. Image every 2 min. Figures S5 to S6: time lapse of sink hole formation with frozen saturated sand. Image every 2 min. Figures S7: formation of ice slabs for the experiment. Table 1