An Overview Of The Mars Atmospheric State As Observed
By Emirs
Michael D. Smith, Nasa Goddard Space Flight Center, Greenbelt, Md, Usa (Michael.D.Smith@Nasa.Gov),
K. Badri, E. Altunaiji, Mohammed Bin Rashid Space Center, Dubai, Uae, S. A. Atwood, Lasp, University
Of Colorado, Boulder, Co, Usa. C. S. Edwards, N. Smith, C. Wolfe, Northern Arizona University, Flagstaff,
Az, Usa, M. J. Wolff, Space Science Institute, Boulder, Co, Usa, P. R. Christensen, S. Anwar, Arizona State
University, Tempe, Az, Usa.

Introduction: Thermal Infrared Spectra Taken By
The Emirates Mars Infrared Spectrometer (Emirs)
(Edwards Et Al., 2021) On-Board The Emirates Mars
Mission (Emm) Spacecraft (Amiri Et Al., 2021) Are
Well Suited For The Retrieval Of Surface Temperatures,
The Atmospheric Temperature Profile From The Surface
To ~50 Km, And The Column Abundance Of Dust Aerosols, Water Ice Clouds, And Water Vapor. A Constrained Linear Inversion Retrieval Routine That Includes Multiple Scattering Has Been Developed And
Optimized For This Purpose. The Unique, High-Altitude
Orbit Of Emm Enables Sampling Of All Local Times
Over A Wide Range Of Latitudes And Longitudes Over A
Short Sub-Seasonal Timescale Of Less Than Two Weeks.
Here, We Present An Overview Of The Retrieval Algorithm And First Atmospheric Science Results From Observations Taken By Emirs Over The First Earth Year