P026:
Nature and Evolution of Climate and Water on Early Mars





Session ID#: 26319

Session Description:
Major outstanding questions in the study of ancient Mars and its potential habitability include the abundance of water (oceans?); its distribution and state (liquid or solid); the manner in which impact, volcanic and spin-axis/orbital processes redistributed/sequestered water; the nature of the cryosphere and the role of groundwater; and the provenance of diverse water-related mineralogies. These questions are all related to the nature of the climate in early Mars history (Noachian). New perspectives from surface exploration of ancient playas and lakes by Spirit, Opportunity and Curiosity, remote sensing of clays and their geologic context, new assessments of water and atmospheric abundances by MAVEN, as well as refined atmospheric general circulation models all offer new insights into the conundrum of whether ancient Mars was “warm and wet” or “cold and icy”. Contributions are invited that bring new perspectives to the fundamental question of the nature and evolution of climate on Early Mars.
Primary Convener:  James W Head III, Brown University, Providence, RI, United States
Conveners:  Robin Duncan Wordsworth, Harvard, Paulson School of Engineering and Applied Sciences, Cambridge, MA, United States, Laura Kerber, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States and Ashwin R Vasavada, NASA Jet Propulsion Laboratory, Pasadena, CA, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • C - Cryosphere
  • H - Hydrology
Index Terms:

5405 Atmospheres [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5415 Erosion and weathering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5416 Glaciation [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5419 Hydrology and fluvial processes [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Abstracts Submitted to this Session:

Janice L Bishop, SETI Institute Mountain View, Mountain View, CA, United States, Leslie Baker, University of Idaho, Moscow, ID, United States, Alberto G. Fairén, Centro de Astrobiología, Madrid, Spain, Joseph R Michalski, University of Hong Kong, Department of Earth Sciences, Hong Kong, China, Luis Gago-Duport, Universidad de Vigo, Vigo, Spain, Michael Anthony Velbel, Michigan State University, East Lansing, MI, United States, Christoph Gross, Free University of Berlin, Berlin, Germany and Elizabeth B Rampe, NASA Johnson Space Center, Houston, TX, United States
Nicholas James Tosca1, Imad A. Ahmed1, Alice Ashpitel1 and Joel Hurowitz2, (1)University of Oxford, Earth Sciences, Oxford, United Kingdom, (2)Stony Brook University, Stony Brook, NY, United States
Jacob Adler, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, Tanya N Harrison, ASU NewSpace Initiative, Tempe, AZ, United States, James F Bell III, Arizona State University, Tempe, AZ, United States and David P Mayer, USGS Astrogeology Science Center, Flagstaff, AZ, United States
Haruhisa Tabata1, Yasuhito Sekine1, Yoshiki Kanzaki2, Seiji Sugita3 and Takashi Murakami1, (1)The University of Tokyo, Tokyo, Japan, (2)The University of California, Riverside, Riverside, CA, United States, (3)The University of Tokyo, Bunkyo-ku, Japan
Itay Halevy, Weizmann Institute of Science, Rehovot, Israel and James W Head III, Brown University, Providence, RI, United States
Edwin S Kite1, Jonathan Sneed1 and David P Mayer2, (1)University of Chicago, Chicago, IL, United States, (2)United States Geological Survey, Astrogeology Science Center, Flagstaff, AZ, United States
Stephen M Clifford, Lunar and Planetary Institute, Houston, TX, United States and François Costard, GEOPS Géosciences Paris-Sud, Université Paris-Sud, CNRS, Université Paris-Saclay, Orsay, France
Robert Michael Haberle, NASA Ames Research Center, Moffett Field, CA, United States, Kevin J Zahnle, NASA, Moffett Field, CA, United States and Nadine G Barlow, Northern Arizona Univ, Flagstaff, AZ, United States
Elizabeth B Rampe1, Briony H. N. Horgan2, Rebecca Smith2, Noel Scudder2, Alicia M Rutledge2, Emily Bamber3 and Richard V Morris1, (1)NASA Johnson Space Center, Astromaterials Research and Exploration Science Division, Houston, TX, United States, (2)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (3)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Victoria Hartwick, Boulder, CO, United States and Brian Toon, University of Colorado at Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States
Kaveh Pahlevan, Laura K Schaefer, Steven J Desch and Linda T Elkins-Tanton, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States
Brad Sutter1, Tanya Peretyazhko2, Angela H Garcia3 and Douglas W Ming2, (1)Jacobs Technology, NASA Johnson Space Center, Houston, TX, United States, (2)NASA Johnson Space Center, Houston, TX, United States, (3)University of Nevada Las Vegas, Las Vegas, NV, United States
Amanda Meyer, Arizona State University, Tempe, AZ, United States, Amanda B Clarke, Arizona State Univ, Tempe, AZ, United States, Alexa R Van Eaton, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and Larry G Mastin, USGS, Vancouver, WA, United States
Steven W Ruff, Arizona State University, Tempe, AZ, United States and Victoria E Hamilton, Southwest Research Institute Boulder, Boulder, CO, United States
Kathleen E Scanlon1, James W Head III1, James Fastook2 and Robin Duncan Wordsworth3, (1)Brown University, Providence, RI, United States, (2)University of Maine, Orono, ME, United States, (3)Harvard, Paulson School of Engineering and Applied Sciences, Cambridge, MA, United States
Ana M Colón1, Catherina Miranda2 and Ralph Milliken2, (1)Dartmouth College, Hanover, NH, United States, (2)Brown University, Providence, RI, United States
Raymond E Arvidson, Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States
James Cassanelli, Brown University, Providence, RI, United States
James W Head III, Brown University, Providence, RI, United States
Gordon Osinski, University of Western Ontario, Earth Sciences, London, ON, Canada and Livio L Tornabene, University of Western Ontario, Washington, ON, Canada
Bruce Martin Jakosky, Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States and The MAVEN Science Team
Alexandre Kling1,2, Robert Michael Haberle3, Christopher P McKay1, Thomas Bristow1 and Frances Rivera-Hernandez4, (1)NASA Ames Research Center, Moffett Field, CA, United States, (2)Bay Area Environmental Research Institute Moffett Field, Moffett Field, CA, United States, (3)NASA Ames Res Ctr, Moffett Field, CA, United States, (4)University of California Davis, Davis, CA, United States
Kathryn Steakley1, Melinda A Kahre2, James Richard Murphy1, Robert Michael Haberle3 and Alexandre Kling4, (1)New Mexico State University Main Campus, Astronomy, Las Cruces, NM, United States, (2)NASA Ames Research Center, Moffett Field, CA, United States, (3)NASA Ames Res Ctr, Moffett Field, CA, United States, (4)Bay Area Environmental Research Institute Moffett Field, Moffett Field, CA, United States
Ashley Margaret Palumbo, Brown University, Providence, RI, United States
Frank P Seelos1, Christopher D Hash2, Scott L Murchie1 and Haeyoung Lim3, (1)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (2)Applied Coherent Technology Corporation, Herndon, VA, United States, (3)University of Colorado at Boulder, Boulder, CO, United States
Ashwin R Vasavada, Jet Propulsion Laboratory, Pasadena, CA, United States, Ray E Arvidson, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, Kenneth S Edgett, Malin Space Science Systems, San Diego, CA, United States, Alberto G. Fairén, Center of Astrobiology, Unidad Asociada UVa-CSIC-CAB, Valladolid, Spain, Christopher Fedo, University of Tennessee, Department of Earth and Planetary Sciences, Knoxville, TN, United States, John P Grotzinger, California Institute of Technology, Pasadena, CA, United States, Sanjeev Gupta, Imperial College London, Earth Science and Engineering, London, United Kingdom, Christopher H House, Pennsylvania State University, State College, PA, United States, Kevin W Lewis, Johns Hopkins University, Earth and Planetary Sciences, Baltimore, MD, United States, Frances Rivera-Hernandez, University of California Davis, Davis, CA, United States, Roger C Wiens, CNRS, Paris Cedex 16, France and The Mars Science Laboratory Science Team

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