Retrievals Of Atmospheric Aerosols In High Aerosol
Conditions From Mars Climate Sounder Mid- And Far
Infrared Limb Measurements
A. Kleinböhl, D. M. Kass, S. Piqueux, S. Suzuki, Jet Propulsion Laboratory, California Institute Of Technology, Pasadena, Ca, Usa (Armin.Kleinboehl@Jpl.Nasa.Gov).

Introduction:
Limb Sounding Of Thermal Emission In The Infrared Wavelength Range Is A Powerful Technique For
Measuring Dust And Water Ice Aerosols In The Martian
Atmosphere. It Provides Vertical Profile Information
And, Due To The Long Optical Path, Typically Has A
Higher Sensitivity Compared With Nadir Viewing
Measurements. However, The Limb Path Might Become Opaque In High Aerosol Conditions, Preventing
A Limb Sounding Measurement From Penetrating The
Atmosphere. Atmospheric Opacities Of Aerosols In The
Far Ir Are Typically Lower Than In The Mid-Ir, Allowing Atmospheric Retrievals In Conditions Of Higher
Aerosol Opacity.
Here We Present Atmospheric Profile Retrievals Of
Dust And Water Ice From Mars Climate Sounder
(Mcs) Limb Measurements That Include Radiances In
The Far Ir. We Use Empirically Derived Extinction