Modeling Co2 Clouds Convection In The Martian Polar Nights
With Large-Eddy Simulations.
V. Caillé, Latmos, Sorbonne Université, Uvsq Paris-Saclay, Cnrs, Paris, France (Vincent.Caille@Latmos.Ipsl.Fr),
A. Spiga, Lmd/Ipsl, Sorbonne Université, Paris, France - Institut Universitaire De France, France, A. Määttänen,
Latmos, Sorbonne Université, Uvsq Paris-Saclay, Cnrs, Paris, France, C. Mathé, Latmos, Sorbonne Université,
Uvsq Paris-Saclay, Cnrs, Paris, France, L. Falletti, Latmos, Sorbonne Université, Uvsq Paris-Saclay, Cnrs,
Paris, France.

Introduction
Co2 Is The Main Component Of The Martian Atmosphere.
It Condenses Both At The Surface As The Polar Caps And
In The Atmosphere As Clouds. Clouds Play A Crucial Role
In The Co2 Cycle At Different Spatial Scales, From Nucleation To Large Clouds Structure, But Their Modeling Were
Restrained Because Of The Lack Of Observations. However, Around Twenty Years Ago, The Mars Orbiter Laser
Altimeter Was The First Instrument To Observe Co2 Ice
Clouds And Snowfall [Neumann Et Al., 2003, Ivanov And
Muhleman, 2001] And Gave, Alongside Mars Climate
Sounder Observations, The Only Properties We Have About
Polar Co2 Ice Clouds. [Colaprete And Toon, 2002] Were
Able To Determine Co2 Ice Clouds Formation Processes