The Evolution of Deuterium and Hydrogen in the Martian Upper Atmosphere

John T Clarke1, Majd Mayyasi2, Dolon Bhattacharyya3, Jean-Yves Chaufray4, Jean-Loup Bertaux5, Geronimo Villanueva6, Jasper S Halekas7, Michael Chaffin8, Justin Deighan9, Nick Schneider9, Sonal Jain9 and Bruce Martin Jakosky10, (1)Boston University, Boston, MA, United States, (2)Boston University, Center for Space Physics, Boston, MA, United States, (3)Laboratory for Atmospheric and Space Physics, Boulder, United States, (4)LATMOS/IPSL, UVSQ Université Paris-Saclay, Sorbonne Université, Guyancourt, France, (5)CNRS Service d'Aéronomie, Verrieres Buisson, France, (6)NASA Goddard Space Flight Center, Greenbelt, United States, (7)University of Iowa, Physics and Astronomy, Iowa City, IA, United States, (8)University of Colorado Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (9)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (10)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States