Orals

TP17

Atmospheres and Exospheres of Terrestrial Bodies

Space missions have provided a wealth of data on the atmospheres and aeronomy of rocky planets and moons, from the lower layers up to the external envelopes in direct contact with the solar wind. A recent emerging finding is evidence that the atmosphere behaves as a single coherent system with complex coupling between layers.

This session solicits contributions that investigate processes at work (chemistry, energetics, dynamics, electricity, escape etc...) on Venus, Mars, and Titan and includes studies of the coupling between the lower/middle and upper atmospheres. Contributions based on analysis of recent spacecraft and ground-based observations, comparative planetology studies, numerical modelling and relevant laboratory investigations are particularly welcome. The session will consist of invited and contributed oral talks as well as posters.

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Co-organized as OPS8

Convener: Anni Määttänen | Co-conveners: Michael Chaffin, Francisco González-Galindo, Majd Mayyasi, Claire Newman, Takehiko Satoh, Dmitrij Titov

Orals

| Wed, 18 Sep, 13:30–18:30

Uranus (Room 4)

Posters

| Attendance Thu, 19 Sep, 17:15–18:45 | Display Wed, 18 Sep, 14:00–Fri, 20 Sep, 17:30|Basement

Wednesday, 18 September 2019 | Uranus (Room 4)

Chairperson: Claire Newman and Francisco Gonzalez-Galindo

Mars

13:30–13:45 |

EPSC-DPS2019-903

Mars Large Scale Meteorology Observed by Insight

François Forget, Don Banfield, Ehouarn Millour, Aymeric Spiga, Claire Newman, Daniel Viúdez-Moreiras, Jorge Pla-Garcia, Sarah Navarro, Luis Mora-Sotomayor, Josefina Torres-Redondo, Jose Antonio Rodriguez-Manfredi, Stephen Lewis, Ralph Lorenz, Philippe Lognonne, and Bruce Banerdt

13:45–14:00 |

EPSC-DPS2019-461

Searching for the most probable source locations of the methane detected by Curiosity and PFS in mid-June 2013

(withdrawn)

Sébastien Viscardy, Frank Daerden, Lori Neary, Marco Giuranna, Giuseppe Etiope, and Dorothy Oehler

14:00–14:15 |

EPSC-DPS2019-287

Multi-Gyr History of Mars' CO2-Dominated Atmosphere: New Data and a New Synthesis

Alexandra Warren, Edwin Kite, Jean-Pierre Williams, and Briony Horgan

14:15–14:30 |

EPSC-DPS2019-1208

Characterization of the Gravity Wave Climatology in the Middle Atmosphere with the Nasa Ames Mars Global Climate Model

Alexandre Kling, Melinda Kahre, John Wilson, Amanda Brecht, and James Murphy

14:30–14:45 |

EPSC-DPS2019-53

Seasonal Water “Pump” in the Atmosphere of Mars: Vertical Transport to the Thermosphere

Dmitry Shaposhnikov, Alexander Medvedev, Alexander Rodin, and Paul Hartogh

14:45–15:00 |

EPSC-DPS2019-752

Mars Climate Controls Hydrogen Loss: Dust-Driven Escape from MRO, TGO, and MAVEN measurements

Mike Chaffin, David Kass, Shohei Aoki, and Anna Fedorova and the MAVEN/IUVS, TGO/NOMAD, TGO/ACS, and MRO/MCS teams

Coffee break

Chairperson: Mike Chaffin and Majd Mayyasi

15:30–15:45 |

EPSC-DPS2019-499

Study of the hydrogen escape rate at Mars during Martian years 28 and 29 from comparisons between SPICAM/Mars Express observations and GCM-LMD simulations

Jean-Yves Chaufray, Francisco Gonzalez-Galindo, Miguel Lopez-Valverde, François Forget, Eric Quémerais, Jean-Loup Bertaux, Franck Montmessin, Michael Chaffin, Nick Schneider, John Clarke, François Leblanc, Ronan Modolo, and Roger Yelle

15:45–16:00 |

EPSC-DPS2019-1030

Improving the Detectability of Faint Emissions with MAVEN IUVS Echelle: Applications to Deuterium Lyman-alpha and the D/H Ratio

Majd Mayyasi, John Clarke, Dolon Bhattacharyya, Jean-Yves Chaufray, Jean-Loup Bertaux, and Nicholas Schneider

16:00–16:15 |

EPSC-DPS2019-868

The D/H Ratio in the Martian Upper Atmosphere

John Clarke, Majd Mayyasi, Dolon Bhattacharyya, Nick Schneider, Jean-Yves Chaufray, Jean-Loup Bertaux, Michael Chaffin, Bruce Jakosky, Justin Deighan, Sonal Jain, Bill McClintock, and Roger Yelle

16:15–16:30 |

EPSC-DPS2019-960

Evidence of Hot Hydrogen in the Exosphere of Mars

Dolon Bhattacharyya, John Clarke, Majd Mayyasi, Jean-Yves Chaufray, Carl Schmidt, Robert Johnson, Jean-Loup Bertaux, Luke Moore, Michael Chaffin, Hannes Groeller, and Nicholas Schneider

16:30–16:45 |

EPSC-DPS2019-534

Seasonal density variations in the Martian thermosphere from observations of UV dayglow by MAVEN/IUVS

Jean-Claude Gérard, Leonardos Gkouvelis, Birgit Ritter, Benoît Hubert, Sonal Jain, and Nicholas Schneider

16:45–17:00 |

EPSC-DPS2019-1054

MAVEN Remote Sensing and it In Situ Observations of Discrete Aurora on Mars

Nicholas Schneider, Sonal Jain, Justin Deighan, Shaosui Xu, David Brain, David Mitchell, and Robert Lillis

Break

Chairperson: Takehiko Satoh and Dima Titov

Titan

17:15–17:30 |