SABER Observations of Daytime Atomic Oxygen and Ozone Variability in the Mesosphere
Multiyear observations from the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on the TIMED (Thermosphere, Ionosphere, Mesosphere, Energetics and Dynamics) satellite are used to determine the daytime variations of ozone and atomic oxygen in the upper mesosphere. Both O3 and O vary during the daylight hours in response to tidal variations in temperature and winds. Ozone around 85 km responds most strongly to the very large O variations and its variations are in phase with those of O and T. At 97 km, where the O variations are weaker, ozone responds more strongly to the temperature and its variations are out of phase with those of O and T.
KeywordsVertical Transport Middle Atmosphere Diurnal Tide Photolysis Rate Adiabatic Temperature Change
The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in the publication are those of the authors and do not necessarily reflect the views of the National Science Foundation. Support for this research was also provided by the National Aeronautics and Space Administration, grants NNX09AG65G and NNX08AL87G.
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