Ozone evolution and UV shielding in an oxygen-bearing Martian atmosphere

Develop and apply a one-dimensional photochemical model of the Martian atmosphere to resolve the outstanding questions about ozone evolution and determine whether an oxygen-bearing low-pressure Martian atmosphere would adequately moderate surface UV irradiance.

Background

Accurate assessment of surface UV conditions under a terraformed, oxygen-bearing Martian atmosphere requires understanding ozone production and loss. While simple models suggest low levels of oxygen could yield sufficient ozone to protect the surface, the dynamics and stability of ozone under Martian conditions remain unresolved.

The authors highlight the need for targeted photochemical modeling to conclusively assess whether ozone would evolve to provide adequate UV shielding.