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Whitepaper #155 submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Topics: atmospheric/exospheric evolution; life and prebiotic organics; Mars
Measuring trace gas fluxes on the surface of Mars will define new boundary conditions for gas exchange models and life-supporting metabolisms that could produce signatures of extant biological processes. Fluxes will build upon current gas abundance data to provide a clearer picture of atmosphere-surface interactions at higher spatiotemporal scales.