Supplementary Materials

Background levels of methane in Mars' atmosphere show strong seasonal variations

Christopher R. Webster, Paul R. Mahaffy, Sushil K. Atreya, John E. Moores, Gregory J. Flesch, Charles Malespin, Christopher P. McKay, German Martinez, Christina L. Smith, Javier Martin-Torres, Javier Gomez-Elvira, Maria-Paz Zorzano, Michael H. Wong, Melissa G. Trainer, Andrew Steele, Doug Archer Jr., Brad Sutter, Patrice J. Coll, Caroline Freissinet, Pierre-Yves Meslin, Raina V. Gough, Christopher H. House, Alexander Pavlov, Jennifer L. Eigenbrode, Daniel P. Glavin, John C. Pearson, Didier Keymeulen, Lance E. Christensen, Susanne P. Schwenzer, Rafael Navarro-Gonzalez, Jorge Pla-García, Scot C. R. Rafkin, Álvaro Vicente-Retortillo, Henrik Kahanpää, Daniel Viudez-Moreiras, Michael D. Smith, Ari-Matti Harri, Maria Genzer, Donald M. Hassler, Mark Lemmon, Joy Crisp, Stanley P. Sander, Richard W. Zurek, Ashwin R. Vasavada

Materials/Methods, Supplementary Text, Tables, Figures, and/or References

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  • Materials and Methods 
  • Supplementary Text
  • Figs. S1 to S44
  • Tables S1 and S2 
  • References