Mars Methane at Gale Crater Shows Strong Seasonal Cycle: Updated Results from TLS-SAM on Curiosity

Christopher R Webster1, Paul R Mahaffy2, Sushil K Atreya3, Gregory Flesch1, Charles Malespin2, Christopher McKay4, German Martinez3, John Moores5, Christina L Smith5, F Javier Martin-Torres6,7, Javier Gomez-Elvira8, Maria-Paz Zorzano6,8, Michael H Wong3, Melissa G Trainer2, Jennifer L Eigenbrode2, Daniel Patrick Glavin2, Andrew Steele9, Doug Archer Jr.10, Brad Sutter10, Patrice J Coll11, Caroline Freissinet12, Pierre-Yves Meslin13, Alexander Pavlov2, Didier Keymeulen1, Lance E Christensen1, Raina V Gough14, Susanne P Schwenzer15, Rafael Navarro-Gonzalez16, Jorge Pla-García8, Scot CR Rafkin17, Álvaro Vicente-Retortillo18, Henrik Kahanpää19, Daniel Viudez-Moreiras20, Michael D Smith2, Ari-Matti Harri19, Maria Genzer19, Don Hassler21, Mark T Lemmon22, Joy A Crisp1, Richard W Zurek1 and Ashwin R Vasavada1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)University of Michigan, Ann Arbor, MI, United States, (4)NASA Ames Research Center, Moffett Field, CA, United States, (5)York University, Toronto, ON, Canada, (6)Lulea University of Technology, Lulea, Sweden, (7)Instituto Andaluz de Ciencias de la Tierra, Granada, Spain, (8)Centro de Astrobiología, Torrejon de Ardoz, Spain, (9)Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States, (10)Jacobs Technology, NASA Johnson Space Center, Houston, TX, United States, (11)LISA, Creteil Cedex, France, (12)LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, (13)Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France, (14)University of Colorado, Boulder, CO, United States, (15)Open University, Milton Keynes, MK7, United Kingdom, (16)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, (17)Southwest Research Institute Boulder, Boulder, CO, United States, (18)University of Michigan, Ann Arbor, United States, (19)Finnish Meteorological Inst, Helsinki, Finland, (20)Centro de Astrobiologia, Instituto National de Tecnica Aerospacial, Madrid, Spain, (21)Southwest Research Inst, Boulder, CO, United States, (22)Texas A & M University, College Station, TX, United States