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Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars

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dc.contributor.author Trainer, Melissa G.
dc.contributor.author Martínez, Germán M.
dc.coverage.spatial Mars
dc.date.accessioned 2020-04-03T19:54:34Z
dc.date.available 2020-04-03T19:54:34Z
dc.date.issued 2019-11-12
dc.identifier.citation Trainer, Melissa G., Michael H. Wong, Timothy H. McConnochie, Heather B. Franz, Sushil K. Atreya, Pamela G. Conrad, Franck Lefèvre, et al. 2019. "Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars". Journal of Geophysical Research: Planets. 124 (11): 3000-3024. en
dc.identifier.other https://doi.org/10.1029/2019JE006175
dc.identifier.uri https://hdl.handle.net/20.500.11753/1481
dc.description.abstract The atmosphere of Mars is made up of primarily carbon dioxide, and during the Martian year, the barometric pressure is known to cycle up and down substantially as this carbon dioxide freezes out and then is rereleased from polar caps. The Mars Science Laboratory Curiosity rover has now acquired atmospheric composition measurements at the ground over multiple years, capturing the variations in the major gases over several seasonal cycles for the first time. With the Sample Analysis at Mars instrument, the annual average composition in Gale Crater was measured as 95.1% carbon dioxide, 2.59% nitrogen, 1.94% argon, 0.161% oxygen, and 0.058% carbon monoxide. However, the abundances of some of these gases were observed to vary up to 40% throughout the year due to the seasonal cycle. en
dc.description.statementofresponsibility Melissa G. Trainer; Michael H. Wong; Timothy H. McConnochie; Heather B. Franz; Sushil K. Atreya; Pamela G. Conrad; Franck Lefèvre; Paul R. Mahaffy; Charles A. Malespin; Heidi L.K. Manning; Javier Martín‐Torres; Germán M. Martínez; Christopher P. McKay; Rafael Navarro‐González; Álvaro Vicente‐Retortillo; Christopher R. Webster; María‐Paz Zorzano
dc.format.extent pages 3000-3024
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher AGU en
dc.relation.ispartofseries LPI contribution ; no. 2233
dc.subject Mars (Planet)--Atmosphere en
dc.subject Mars (Planet)--Seasons en
dc.title Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars en
dc.type Article en
dc.rights.license Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)


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