P43D:
Judging an Ocean World by Its Cover: Geological and Chemical Processes on Icy Surfaces I Posters

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Session ID#: 35342

Session Description:
This session will focus on the physical and chemical processes affecting icy surfaces, in particular the icy satellites of the outer Solar System. What geologic processes shape and continue to take place on the surfaces of icy worlds such as Europa and Enceladus, and what can we learn from appropriate terrestrial analogs? How do external (sunlight, radiation) and internal (convection, heating) processes compete to determine the morphology and appearance of icy surfaces? A particular focus will be on modification of the surfaces of ocean worlds by exogenic processes, and on surface / subsurface material exchange. External modification includes photolysis, magnetospheric particle interactions, and micrometeoroids. Understanding exogenous processing, as well as how processes that affect the surface continue into the subsurface, helps us better understand the evolution of ocean worlds. This session will bring together theoretical and laboratory work with remote sensing observations, and field work at terrestrial analog cryosphere locations.
Primary Convener:  Cynthia B Phillips, JPL/NASA/Caltech, Pasadena, CA, United States
Conveners:  Charles Hibbitts, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Chris Paranicas, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Chairs:  Charles Hibbitts1, Cynthia B Phillips2 and Chris Paranicas1, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States(2)JPL/NASA/Caltech, Pasadena, CA, United States
OSPA Liaison:  Cynthia B Phillips, JPL/NASA/Caltech, Pasadena, CA, United States

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
Index Terms:

0770 Properties [CRYOSPHERE]
5422 Ices [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6218 Jovian satellites [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6280 Saturnian satellites [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Ice sintering timescales at the surface of Europa and implications for surface properties (226043)
Jamie Molaro, Planetary Science Institute Pasadena, Pasadena, CA, United States, Cynthia B Phillips, JPL/NASA/Caltech, Pasadena, CA, United States and Gareth Meirion-Griffith, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
The Longitudinal Distribution of Condensed Oxygen on Europa (298004)
John R Spencer, Southwest Research Institute Boulder, Boulder, CO, United States and William M Grundy, Lowell Observatory, Flagstaff, United States
Cryogenic Laboratory Experiments into Radiation Effects on the Spectra of Non-Ice Materials relevant to Ocean Worlds (275327)
Karen R Stockstill-Cahill1, Charles Hibbitts2 and Benjamin R Wing2, (1)Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Cryogenic Irradiation of Bacillus Atrophaeus spores to understand microbial survival on Icy Bodies (288353)
Cooper James Yerby1,2, Aaron Craig Noell3, Robert P Hodyss1, Paul V Johnson4 and Adrian Ponce1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)University of Southern California, Department of Geological Sciences, Los Angles, CA, United States, (3)Jet Propulsion Laboratory, Pasadena, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Constraints on Europa’s Ocean Composition Imposed by Its Surface Composition (277041)
Paul V Johnson1, Robert P Hodyss2, Tuan Hoang Vu3 and Mathieu Choukroun2, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)Jet Propulsion Laboratory, Pasadena, United States, (3)Jet Propulsion Laboratory, Pasadena, CA, United States
Detection of Organic Matter in Greenland Ice Cores by Deep-UV Fluorescence (275701)
Madelyne Willis1, Michael Malaska2, Greg Wanger3, Rohit Bhartia4, Evan Eshelman5, William Abbey4 and John C Priscu6, (1)Montana State University, Bozeman, United States, (2)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)University of Southern California, Los Angeles, CA, United States, (4)JPL/NASA/Caltech, Pasadena, CA, United States, (5)York University, Centre for Research in Earth and Space Science, Toronto, ON, Canada, (6)Desert Research Institute, Division of Earth and Ecosystem Sciences, Reno, United States
Crater Morphology of Engineered and Natural Impactors into Planetary Ice (284767)
Mariah Danner, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States, Robert Winglee, University of Washington, Earth and Space Sciences, Seattle, WA, United States and James Koch, University of Washington Seattle Campus, Aeronautics and Astronautical Engineering, Seattle, WA, United States
3D model of auroral emissions for Europa (270914)
Gaël Cessateur1, Mathieu Barthelemy2, Martin Rubin3, Jean Lilensten2, Romain Maggiolo4, Johan De Keyser5, Herbert Gunell6 and Jérôme Loreau7, (1)Belgisch Instituut voor Ruimte-Aeronomie, Brussel, Belgium, (2)IPAG, Grenoble, France, (3)Physikalisches Institut, University of Bern, Bern, Switzerland, (4)BIRA/IASB, Brussels, Belgium, (5)Belgian Institute for Space Aeronomy, Brussels, Belgium, (6)Belgian Inst. Space Aeronomy, Brussels, Belgium, (7)Université Libre de Bruxelles, Service de Chimie Quantique et Photophysique, Brussels, Belgium

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