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The mesosphere and me: OH, how low can you go?

The mesospheric nightglow spectrum is brimming with OH Meinel band emissions—from the mid-visual to the mid-infrared. These emissions can be a wealth of information to aeronomers, giving us a physical view of the chemistry and dynamics in the upper atmosphere. The OSIRIS instrument, hitching a ride on the Odin satellite, is currently one of the few satellite instruments that observes Meinel band spectra in multiple bands simultaneously. This has allowed me to derive near-global datasets of nighttime OH volume emission rate (VER) profiles in the Meinel (5-1), (8-3), and (9-4) bands. A climatology of the band profiles will be presented, and discussion will focus on the difference in emission peak height between the three bands. As well, there will be a discussion of the need for these types of observations in order to make accurate ground-based measurements of mesospheric temperatures