The Evolution of Deuterium and Hydrogen in the Martian Upper Atmosphere

John T Clarke1, Majd Mayyasi1, Dolon Bhattacharyya1, Jean-Yves Chaufray2, Jean-Loup Bertaux3, Geronimo L Villanueva4, Jasper S Halekas5, Michael Chaffin6, Justin Deighan6, Nick Schneider6, Sonal Jain6 and Bruce Martin Jakosky7, (1)Boston University, Boston, MA, United States, (2)LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, (3)CNRS Service d'Aéronomie, Verrieres Buisson, France, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)University of Iowa, Iowa City, IA, United States, (6)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (7)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States