A Global Study Of Martian Atmospheric Dust With The
Near-Infrared
Imaging
Spectrometer
Omega/Mars
Express.
Y. Leseigneur And M. Vincendon, Institut D’Astrophysique Spatiale, Université Paris-Saclay, Cnrs, Orsay,
France (Yann.Leseigneur@Ias.U-Psud.Fr.

Introduction:
Dust, Composed Of Micrometer-Sized Particles, Is
An Important Component Of Both The Atmosphere And
The Surface Of Mars. This High Albedo Material Modifies Heat Balance While Being Highly Mobile: It Is Thus
A Major Contributor To Current Mars Atmosphere And
Surface Dynamics. Numerous Studies Realized From
The Martian Orbit Or From The Ground Already Provided
Information On Dust Spatial And Time Distribution (E.G.,
[1], [2], [3]). However, Some Characteristics Of The

Dust Cycle Remain Uncertain. This Is Notably Related To