EGU2020-21327
https://doi.org/10.5194/egusphere-egu2020-21327
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Daytime and nighttime turbulence on Mars monitored by InSight

Aymeric Spiga1,2, Naomi Murdoch3, Don Banfield4, Ralph Lorenz5, Claire Newman6, Jorge Pla-Garcia7,8, Raphael Garcia3, Philippe Lognonné9, Léo Martire3, Sara Navarro7, and the the InSight team*
Aymeric Spiga et al.
  • 1Sorbonne Université - Campus Pierre et Marie Curie, Laboratoire de Météorologie Dynamique BC 99, Paris, France (spiga@lmd.jussieu.fr)
  • 2Institut Universitaire de France, 1 rue Descartes, 75005 Paris, France
  • 3Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), 10 Avenue Edouard Belin, 31400 Toulouse, France
  • 4Cornell University, Cornell Center for Astrophysics and Planetary Science, Ithaca, NY, 14853, USA
  • 5Johns Hopkins Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723, USA
  • 6Aeolis Research, 333 N Dobson Road, Unit 5, Chandler AZ 85224-4412, USA
  • 7Centro de Astrobiología (CSIC‐INTA), 28850 Torrejón de Ardoz, Madrid, Spain
  • 8Space Science Institute, 4765 Walnut Street, Suite B, Boulder, CO, 80301, USA
  • 9Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France
  • *A full list of authors appears at the end of the abstract

The InSight instrumentation for atmospheric science combines high frequency, high accuracy and continuity. This makes InSight a mission particularly suitable for studies of the variability in the Planetary Boundary Layer (PBL) of Mars -- all the more since this topic is of direct interest for quake detectability given that turbulence is the main contributor to atmosphere-induced seismic signal. For the strong daytime buoyancy-driven PBL convection, InSight significantly extends the statistics of dust-devil-like convective vortices and turbulent wind gustiness, both of which are of strong interest for aeolian science. For the moderate nighttime shear-induced PBL convection, InSight enables to explore phenomena and variability left unexplored by previous in-situ measurements on Mars. In both daytime and nighttime environments, how the gravity waves and infrasound signals discovered by InSight are being guided within the PBL is also a central topic to InSight's atmospheric investigations, with the tantalizing possibility to identify possible sources for those phenomena. InSight has been operating at the surface of Mars since 18 months, thus the seasonal evolution of the many phenomena occurring in the PBL will be an emphasis of this report. Comparisons with turbulence-resolving modeling such as Large-Eddy Simulations will be also discussed.

the InSight team:

Atmospheres STG

How to cite: Spiga, A., Murdoch, N., Banfield, D., Lorenz, R., Newman, C., Pla-Garcia, J., Garcia, R., Lognonné, P., Martire, L., and Navarro, S. and the the InSight team: Daytime and nighttime turbulence on Mars monitored by InSight, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21327, https://doi.org/10.5194/egusphere-egu2020-21327, 2020

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