Tropospheric ozone.

Background: Tropospheric ozone is difficult to retrieve from satellites because of the abundance of ozone in the stratosphere. Tropospheric ozone has become a significant environmental issue and can be exacerbated by UT/LS folding and longrange transport events. Ozone can be moved from the stratosphere to the troposphere by upper tropospheric meteorological events. The Ozone Monitoring Instrument (OMI) and the Atmospheric Infrared Sounder (AIRS) are two instruments that are used to retrieve ozone from space. In this project, we looked at a folding event in late June 2008 and a long-range transport event in early July 2008. Both events caused elevated ozone that was detected at the Mt. Bachelor Observatory in Oregon (Ambrose et al., 2011).