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the claim

Mars atmospheric pressure fluctuates due to seasonal evaporation of polar ice caps

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

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Is it true that Mars atmospheric pressure fluctuates due to seasonal evaporation of polar ice caps?

Yes. Mars atmospheric pressure undergoes significant seasonal fluctuations driven by the sublimation and deposition of carbon dioxide in the polar ice caps.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

The analysis

Papers [0] and [3] explicitly link the seasonal evolution of the Martian mean atmospheric pressure field to the CO2 sublimation and deposition cycles occurring at the polar ice caps.

Evidence for · 2
Mars 2020 Perseverance Rover Studies of the Martian Atmosphere Over Jezero From Pressure Measurements
2022
Rover pressure measurements show that seasonal evolution of the mean pressure field is driven by the CO2 sublimation and deposition cycle at the poles.
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Sánchez‐Lavega, A., Río‐Gaztelurrutia, T., Hueso, R., Juárez, M., Martínez, G., Harri, A., Genzer, M., Hieta, M., Polkko, J., Rodríguez‐Manfredi, J., Lemmon, M., Pla‐García, J., Toledo, D., Vicente-Retortillo, Á., Viúdez‐Moreiras, D., Munguira, A., Tamppari, L., Newman, C., Gómez-Elvira, J., Guzewich, S., Bertrand, T., Apéstigue, V., Arruego, I., Wolff, M., Banfield, D., Jaakonaho, I., & Mäkinen, T. (2022). Mars 2020 Perseverance Rover Studies of the Martian Atmosphere Over Jezero From Pressure Measurements. doi.org. https://doi.org/10.1029/2022JE007480

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More for · 1
Time variations of Mars' gravitational field and seasonal changes in the masses of the polar ice caps
2009
Spacecraft tracking of changes in Mars' gravity field estimates seasonal mass changes of carbon dioxide deposited and sublimed in polar regions.
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Smith, D. E., Zuber, M. T., Torrence, M. H., Dunn, P. J., Neumann, G. A., Lemoine, F. G., & Fricke, S. K. (2009). Time variations of Mars' gravitational field and seasonal changes in the masses of the polar ice caps. doi.org. https://doi.org/10.1029/2008je003267

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Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8404 Aug 2026
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