Nocturnal means acquired during 2018, showing nights with more than 100 observations (red circles), or less (but at least 40; blue circles) are distinguished. Intensity scale is adjusted for consistency with data before November 2002 (detector change). The green line here corresponds to the climatology explained in Reisin and Scheer (2009).
next figure (2018 OH intensity)             same (O2 intensity) for 1997-2001             2002-2003             2006             2007             2008             2009             2010             2011             2012             2013             2014             2015             2016             2017             2018             2019             2020             2022             2023             2024             2025
2018 overview
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