Global distribution of atomic oxygen in the mesopause region as derived from SCIAMACHY O( <sup>1</sup> S) green line measurements

Abstract
<p>A new data set of atomic oxygen abundance in the upper mesosphere and lower thermosphere is presented. The data are derived from the nighttime atomic oxygen green line limb emission measurements of the SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) instrument on the European Environmental Satellite. The temporal coverage is October 2002 until April 2012, and the latitudinal extent is 50\textdegreeS to 80\textdegreeN at 10 P.M. local time. This data set is compared to other satellite data sets, in particular to recently published data of SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) and the Mass Spectrometer and Incoherent Scatter model. SCIAMACHY atomic oxygen peak abundances are typically 3\textendash6\texttimes10<sup>11</sup> mol/cm<sup>3</sup> at the atomic oxygen maximum region, depending on latitude and season. These values are similar to previous values based on chemiluminescence measurements of the atomic oxygen three-body recombination reaction but at least 30\% lower than atomic oxygen abundances obtained from SABER.</p>
Year of Publication
2014
Journal
Geophysical Research Letters
Volume
41
Number of Pages
6274-6280
Date Published
09/2014
URL
http://doi.wiley.com/10.1002/grl.v41.17http://doi.wiley.com/10.1002/2014GL060574
DOI
10.1002/grl.v41.1710.1002/2014GL060574