Atomic Oxygen Green Line Emissions as Observed by the SCIAMACHY / ENVISAT Instrument
Zhu, Yajun; Kaufmann, Martin; Stoeckle, Martin; Riese, Martin
Research Centre Juelich, IEK-7, GERMANY

Oxygen green line emissions of metastable oxygen atoms in the O(1S) state are one of the few sources to obtain atomic oxygen densities in the mesopause region. This paper studies the potential to derive global fields of atomic oxygen by means of Scanning Imaging Absorption Spectrometer for Atmospheric CHartographY (SCIAMACHY) nightglow measurements. Data quality and model uncertainties are discussed. Global fields of atomic oxygen density are derived. Their spatial and temporal variability is analysed.