Global Heterogeneous Chlorine Chemistry: Modelling and Implications

Key Points

• Improved agreement with orbital HCl observations indicates significant chlorine cycle interactions on Mars.
• Measurements reveal that hydrogen chloride levels affect Martian atmospheric dynamics and chemistry.
• Assessment using a global climate model highlights the importance of heterogeneous chemistry in understanding chlorine.
• This study suggests that insights into the chlorine cycle could inform future Mars exploration and climate modeling.