Testing The Efficacy Of A Mars Submillimeter (Submm) Sounder For Atmospheric Measurements L. K. Tamppari, Jet Propulsion Laboratory/California Institute Of Technology, Pasadena, Ca, Usa (Leslie.Tamppari@Jpl.Nasa.Gov), N. J. Livesey, W. Read Jet Propulsion Laboratory/California Institute Of Technology, Pasadena, Ca, Usa, D. Banfield, Nasa Ames Research Center, Moffett Field Ca, Usa, B. Ward, Flatiron Institute, New York, Ny, Usa, F. Forget, E. Millour, Laboratoire De Météorologie Dynamique, Paris, France, L. Steele, European Centre For Medium-Range Weather Forecasts, Reading, Uk, M. Kahre, Nasa Ames Research Center, Moffett Field Ca, Usa, R. Haberle, Capitola, Ca, Usa, G. Chattopadyay, D. Hayton, Jet Propulsion Laboratory/California Institute Of Technology, Pasadena, Ca, Usa, P. Hartogh, Max Planck Institute For Solar System Research, Göttingen, Germany. Introduction: The Study Of The Martian Atmosphere Has Advanced Significantly Over The Last 30 Years, However, Daily, Global Measurements Of Winds And Water Vapor Have Not Been Obtained, Yet Are Crucial For Understanding Vapor Transport, Illuminating The Role Of Water-Regolith Interaction, And Quantifying The Large-Scale Circulation And Wave Activity That Are Present In The Current Climate On Mars. Furthermore, Understanding The Current Climate And Being Able To Constrain Global Circulation Models (Gcms) Are Necessary For Accurately Evaluating Scenarios For The Past Martian Climate, During A Time When It Was Vastly Different And Likely Had Flowing Liquid Water And Possibly Microbial Life.