@article{3c0d094623964dcbbd834e352d92490a,
title = "Widespread Shallow Water Ice on Mars at High Latitudesand Midlatitudes",
abstract = "We derive the depth of the water ice table on Mars by fitting seasonal surface temperature trends acquired by the Mars Climate Sounder and Thermal Emission Imaging System with a two-layer regolith model assuming frozen H2O as the lower material. Our results are consistent with widespread water ice at latitudes as low as 35°N/45°S buried sometimes a few centimeters below sand-like material, with high lateral ice depth variability, and correlated with periglacial features. While several investigations have already predicted, identified, and characterized some properties of near-surface ice on Mars, our results constitute a significant advance in the context of the upcoming crewed exploration because (1) they focus on very shallow depths accessible with limited equipment, (2) they provide continuous regional coverage including the midlatitudes, and (3) they yield moderate spatial resolution maps (3 ppd) relevant to landing site selection studies.",
keywords = "climate, ISRU, Mars, thermophysics, water ice",
author = "{The MCS} and {THEMIS Teams} and Sylvain Piqueux and Jennifer Buz and Edwards, {Christopher S.} and Bandfield, {Joshua L.} and Armin Kleinb{\"o}hl and Kass, {David M.} and Hayne, {Paul O.}",
note = "Funding Information: Part of this work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. Government support acknowledged. Sources of funding originate from (in no particular order): NASA MDAP (14‐MDAP14_2‐0017), NASA PDART (15‐PDART15_2‐0023), JPL Lew Allen award (01STCR), the Mars Climate Sounder onboard Mars Reconnaissance Orbiter, and the Thermal Emission Imaging System onboard Mars Odyssey. MCS and THEMIS data presented in this manuscript are publicly available at the Planetary Data System. Individual THEMIS images are listed in the text and captions. Mapping products and model input files are openly available online ( https://doi.org/10.22002/D1.1316 ). Funding Information: Part of this work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. Government support acknowledged. Sources of funding originate from (in no particular order): NASA MDAP (14-MDAP14_2-0017), NASA PDART (15-PDART15_2-0023), JPL Lew Allen award (01STCR), the Mars Climate Sounder onboard Mars Reconnaissance Orbiter, and the Thermal Emission Imaging System onboard Mars Odyssey. MCS and THEMIS data presented in this manuscript are publicly available at the Planetary Data System. Individual THEMIS images are listed in the text and captions. Mapping products and model input files are openly available online (https://doi.org/10.22002/D1.1316). Publisher Copyright: {\textcopyright}2019. American Geophysical Union. All Rights Reserved.",
year = "2019",
month = dec,
day = "28",
doi = "10.1029/2019GL083947",
language = "English (US)",
volume = "46",
pages = "14290--14298",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "24",
}