EGU22-5796, updated on 17 May 2022
https://doi.org/10.5194/egusphere-egu22-5796
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Weather at Jezero, Mars from pressure measurements by the rover Perseverance

Agustin Sanchez-Lavega1, Teresa del Rio-Gaztelurrutia1, Ricardo Hueso1, Manuel de la Torre2, Ari-Matti Harri3, Maria Genzer4, Maria Hieta4, Jouni Polkko4, José Antonio Rodríguez-Manfredi5, Leslie K. Tamppari2, Claire Newman6, Asier Munguira1, Germán Martínez7, Alvaro Vicente-Retortillo5, Mark Lemmon10, Jorge Pla-Garcia5, Scott Guzewich9, Daniel Toledo5, Víctor Apéstigue8, Daniel Viúdez-Moreiras5, and the Additional Team members*
Agustin Sanchez-Lavega et al.
  • 1Universidad Pais Vasco UPV/EHU, Escuela de Ingeniería de Bilbao, Física Aplicada I, Bilbao, Spain (agustin.sanchez@ehu.es)
  • 2Jet Propulsion Laboratory/California Institute of Technology, Pasadena, CA, USA
  • 3Institute for Atmospheric and Earth System Research / Physics, University of Helsinki, Finland
  • 4Finnish Meteorological Institute, Helsinki, Finland
  • 5Centro de Astrobiología (INTA-CSIC), Madrid, Spain
  • 6Aeolis Research, Pasadena, CA, USA
  • 7Lunar and Planetary Institute, Houston, TX, USA
  • 8Instituto Nacional de Técnica Aeroespacial, INTA, Madrid, Spain
  • 9NASA Goddard Space Flight Center, Greenbelt, MD, USA
  • 10Space Science Institute, Brookfield, WI, USA
  • *A full list of authors appears at the end of the abstract

We report the analysis of pressure measurements at Jezero crater, Mars by the MEDA instrument [1] onboard the rover Perseverance following its landing and covering the period from March 5, 2021 up to this meeting presentation (approximately from solar longitudes 15° to 200°). We identify a variety of atmospheric phenomena, spanning from local to global spatial and temporal scales that leave their imprint in the pressure data [2]. These comprises: Local turbulence (high frequency fluctuations), waves (short period oscillations 12-24 minutes), local vortices (sudden pressure drops from seconds to a minute), baroclinic waves (oscillation periods 4-5 sols) and up to six Fourier components of the thermal tides. The normalized amplitude of the diurnal and semidiurnal tides show a large variability along the studied period, but smaller changes are also noted in tidal components 3 to 6.  We report on the effects of the presence of water ice clouds and dust from storms on the tidal components. Finally, we present the main parameters that characterize each of the phenomena studied, their variability throughout this period, and a preliminary interpretation for all of them.

References:

[1] Rodríguez-Manfredi J. A. et al., Space Sci. Rev., 217.3, 1-86 (2021)

[2] Sánchez-Lavega A. et al., Perseverance/Mars2020 measurements of the daily pressure cycle at Jezero, P25A-03, AGU Fall Meeting (2021)

Additional Team members:

M. Wolff (10), D. Banfield (11), J. Gómez-Elvira (8)

How to cite: Sanchez-Lavega, A., del Rio-Gaztelurrutia, T., Hueso, R., de la Torre, M., Harri, A.-M., Genzer, M., Hieta, M., Polkko, J., Rodríguez-Manfredi, J. A., Tamppari, L. K., Newman, C., Munguira, A., Martínez, G., Vicente-Retortillo, A., Lemmon, M., Pla-Garcia, J., Guzewich, S., Toledo, D., Apéstigue, V., and Viúdez-Moreiras, D. and the Additional Team members: Weather at Jezero, Mars from pressure measurements by the rover Perseverance, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5796, https://doi.org/10.5194/egusphere-egu22-5796, 2022.