Global Vertical Distribution Of Water Vapor On Mars:
Results From 2 Mars Years Of Exomars-Tgo/Nomad Science Operations
S. Aoki, Graduate School Of Frontier Sciences, The University Of Tokyo, Kashiwa, Japan
(Shohei.Aoki@Edu.K.U-Tokyo.Ac.Jp), A. C. Vandaele, F. Daerden, I. R. Thomas, L. Trompet, J. T. Erwin, L.
Neary, S. Robert, A. Piccialli, B. Ristic, Royal Belgian Institute For Space Aeronomy, Brussels, Belgium, G. L.
Villanueva, G. Liuzzi, M. D. Smith, Nasa Goddard Space Flight Center, 8800 Greenbelt Rd., Greenbelt,
20771 Md, Usa, M. A. Lopez-Valverde, A. Brines, J. J. Lopez-Moreno, Instituto De Astrofísica De Andalucía, Glorieta De La Astronomia, Granada, Spain, R. T. Clancy, Space Science Institute, Boulder, Usa, N. Yoshida, Tohoku University, Sendai, Japan, J. A. Holmes, M. R. Patel, School Of Physical Science, The Open University, Milton Keynes, Uk, J. Whiteway, Centre For Research In Earth And Space Science, York University,
Toronto, Canada, G. Bellucci, Istituto Di Astrofisica E Planetologia Spaziali, Iaps-Inaf, Rome, Italy.

Introduction:
Two Instruments Onboard Exomars Trace Gas
Orbiter (Tgo), Nadir And Occultation For Mars Discovery (Nomad) And Atmospheric Chemistry Suite
(Acs) Are Unique Platforms To Provide The Global
Vertical Distribution Of Trace Gases (Such As Water
Vapor, Carbon Monoxide, Hydrogen Chloride, Etc) On
Mars From Their Daily Solar Occultation Measurements
(Vandaele Et Al., 2018: Korablev Et Al., 2018). The
Science Operation Of Tgo Has Started Since April
2018 And We Have Collected Measurements For More
Than 2 Mars Years. Here, We Present The Results On The