Atmospheric Data Assimilation With The Emirates Mars Mission. R. M. B. Young, M. Aljaberi, Department Of Physics & National Space Science And Technology Center, United Arab Emirates University, Al Ain, United Arab Emirates (Roland.Young@Uaeu.Ac.Ae), E. Millour, F. Forget, Laboratoire De MéTéOrologie Dynamique, Jussieu, Paris, France, C. S. Edwards, N. M. Smith, Northern Arizona University, Flagstaff, Az, Usa, M. D. Smith, Nasa Goddard Space Flight Center, Greenbelt, Md, Usa, S. Anwar, P. R. Christensen, Arizona State University, Tempe, Az, Usa, M. J. Wolff, Space Science Institute, Boulder, Co, Usa. Model (Forget Et Al. 1999). Emirs Is A Thermal Infrared Spectrometer That Operates In The 6–50 Μm Wavelength Range (Edwards Et Al. 2021). Our Assimilation Uses The Local Ensemble Transform Kalman Filter (Hunt Et Al., 2007) With An Ensemble Of 36 Numerical Simulations. We Currently Assimilate Atmospheric Temperature Retrievals From Emirs Between 0.75–4.75 Pressure Scale Heights Above The Surface. The Process Is Illustrated Schematically 1. P = 30.00 Pa Temperature, Emirs Assimilation, Sols 126.7-193.5,Inls Fig. 60.0-90.0,