P52A:
Planetary Atmospheres and Evolution I

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Session ID#: 14965

Session Description:
Understanding the nature and variability of planetary atmospheres, the physical mechanisms governing these atmospheres, and their evolution are strong driving forces of planetary sciences and solar system exploration mission planning. While the long-term evolution of the Earth is constrained by geological and geochemical data, the evolutionary paths of other planets must be reconstructed from planetary mission data and astronomical observations. Models of planetary atmospheres use these observations to illuminate governing physical processes operating from the Earth to planets in our solar system and beyond. The rapidly increasing number of exoplanets provides a new opportunity for interdisciplinary collaborations between geoscientists, astronomers, biologists, and planetary scientists concerning the evolution of planetary atmospheres and planetary habitability. The session welcomes both observational and theoretical studies relevant to the evolution of planetary atmospheres, planet habitability, and the current physical states of planetary atmospheres in and outside of our solar system (including the Earth).
Primary Convener:  Feng Tian, Tsinghua University, Beijing, China
Conveners:  Michael H. Wong, University of California Berkeley, Berkeley, CA, United States, Cedric Gillmann, Observatoire Royal de Belgique, Brussel, Belgium and Yasuhito Sekine, Earth-Life Science Institute (ELSI), Tokyo, Japan
Chairs:  Cedric Gillmann, Observatoire Royal de Belgique, Brussel, Belgium, Michael H. Wong, University of California Berkeley, Berkeley, CA, United States, Yasuhito Sekine, Earth-Life Science Institute (ELSI), Tokyo, Japan and Feng Tian, Tsinghua University, Beijing, China
OSPA Liaison:  Feng Tian, Tsinghua University, Beijing, China

Cross-Listed:
  • A - Atmospheric Sciences
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0343 Planetary atmospheres [ATMOSPHERIC COMPOSITION AND STRUCTURE]
5225 Early environment of Earth [PLANETARY SCIENCES: ASTROBIOLOGY]
5405 Atmospheres [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5749 Origin and evolution [PLANETARY SCIENCES: FLUID PLANETS]

Abstracts Submitted to this Session:

Nitrogen, redox and life on the early Earth (154136)
Robin Wordsworth, Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States
Evolutionary Modeling of Atmospheric Abundances Due to Impacts at Venus, Earth, and Mars (145948)
Dave A Brain, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States and Caitlin Heath, University of Colorado at Boulder, Boulder, CO, United States
The Evolution of Water in Martian Atmosphere, Hydrosphere, and Cryosphere: Insights from Hydrogen Isotopes (Invited) (134190)
Tomohiro Usui, ISAS/JAXA, Sagamihara, Japan, Hiroyuki Kurokawa, Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan, Conel Michael O'Donel Alexander, Carnegie Institution of Washington, Washington, DC, United States, Justin I Simon, NASA Johnson Space Center, Houston, United States, Jianhua Wang, Carnegie Science, Earth and Planets Laboratory, Washington, United States and John H Jones, NASA Johnson Space Center, Houston, TX, United States
Stable Hydrogen-rich Atmospheres of Young Rocky Planets (183943)
Kevin J Zahnle1, David C. Catling2 and Marko Gacesa1, (1)NASA Ames Research Center, Moffett Field, CA, United States, (2)University of Washington, Department of Earth and Space Sciences, Seattle, United States
New Definitions for the Inner Edge of the Habitable Zone Around M-Dwarf Stars from 3D Climate Models. (167622)
Eric T Wolf, University of Colorado at Boulder, Atmospheric and Oceanic Sciences, Boulder, United States, Jacob D Haqq-Misra, Blue Marble Space Institute of Science, Seattle, WA, United States and Ravi Kopparapu, NASA Goddard Space Flight Center, Solar System Exploration Division, Greenbelt, MD, United States
Climate and Habitability of Kepler 452b (146276)
Yongyun Hu1, Yuwei Wang2 and Yonggang Liu2, (1)Peking University, Department of Atmospheric and Oceanic Sciences, School of Physics, Beijing, China, (2)Peking University, Atmospheric and Oceanic Sciences, Beijing, China
An investigation of Haze Heating and Cooling in Pluto’s Atmosphere (146490)
Xi Zhang, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Darrell F Strobel, Johns Hopkins Univ, Baltimore, MD, United States and Hiroshi Imanaka, University of Arizona, Tucson, AZ, United States

See more of: Planetary Sciences