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The diverse meteorology of Jezero crater over the first 250 sols of Perseverance on Mars

Rodriguez-Manfredi, J. A. and de la Torre Juarez, M. and Sanchez-Lavega, A. and Hueso, R. and Martinez, G. and Lemmon, M. T. and Newman, C. E. and Munguira, A. and Hieta, M. and Tamppari, L. K. and Polkko, J. and Toledo, D. and Sebastian, E. and Smith, M. D. and Jaakonaho, I. and Genzer, M. and De Vicente-Retortillo, A. and Viudez-Moreiras, D. and Ramos, M. and Saiz-Lopez, A. and Lepinette, A. and Wolff, M. and Sullivan, R. J. and Gomez-Elvira, J. and Apestigue, V. and Conrad, P. G. and Del Rio-Gaztelurrutia, T. and Murdoch, Naomi and Arruego, I. and Banfield, D. and Boland, J. and Brown, A. J. and Ceballos, J. and Dominguez-Pumar, M. and Espejo, S. and Fairén, A. G. and Ferrandiz, R. and Fischer, E. and Garcia-Villadangos, M. and Gimenez, S. and Gomez-Gomez, F. and Guzewich, S. D. and Harri, A.-M. and Jimenez, J. J. and Jimenez, V. and Makinen, T. and Marin, M. and Martin, C. and Martin-Soler, J. and Molina, A. and Mora-Sotomayor, L. and Navarro, S. and Peinado, V. and Perez-Grande, I. and Pla-Garcia, J. and Postigo, M. and Prieto-Ballesteros, O. and Rafkin, S. C. R. and Richardson, M. I. and Romeral, J. and Romero, C. and Savijärvi, H. and Schofield, J. T. and Torres, J. and Urqui, R. and Zurita, S. The diverse meteorology of Jezero crater over the first 250 sols of Perseverance on Mars. (2023) Nature Geoscience, 16 (1). 19-28. ISSN 1752-0894

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Official URL: https://doi.org/10.1038/s41561-022-01084-0

Abstract

ASA’s Perseverance rover’s Mars Environmental Dynamics Analyzer is collecting data at Jezero crater, characterizing the physical processes in the lowest layer of the Martian atmosphere. Here we present measurements from the instrument’s first 250 sols of operation, revealing a spatially and temporally variable meteorology at Jezero. We find that temperature measurements at four heights capture the response of the atmospheric surface layer to multiple phenomena. We observe the transition from a stable night-time thermal inversion to a daytime, highly turbulent convective regime, with large vertical thermal gradients. Measurement of multiple daily optical depths suggests aerosol concentrations are higher in the morning than in the afternoon. Measured wind patterns are driven mainly by local topography, with a small contribution from regional winds. Daily and seasonal variability of relative humidity shows a complex hydrologic cycle. These observations suggest that changes in some local surface properties, such as surface albedo and thermal inertia, play an influential role. On a larger scale, surface pressure measurements show typical signatures of gravity waves and baroclinic eddies in a part of the seasonal cycle previously characterized as low wave activity. These observations, both combined and simultaneous, unveil the diversity of processes driving change on today’s Martian surface at Jezero crater.

Item Type:Article
HAL Id:hal-03977396
Audience (journal):International peer-reviewed journal
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Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited On:07 Feb 2023 14:50

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