Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHe bulge revealed: He and CO<sub>2</sub> diurnal and seasonal variations in the upper atmosphere of Mars as detected by MAVEN NGIMS.AuthorsElrod, M. K.; Bougher, S.; Bell, J.; Mahaffy, P. R.; Benna, M.; Stone, S.; Yelle, R.; Jakosky, B.PublicationJournal of Geophysical Research. Space Physics, 2017, Vol 122, Issue 2, p2564ISSN2169-9380Publication typeArticleDOI10.1002/2016JA023482