Ozone profiles in the Baltimore-Washington region (2006–2011): satellite comparisons and DISCOVER-AQ observations

Much progress has been made in creating satellite products for tracking the pollutants ozone and NO2 in the troposphere. Yet, in mid-latitude regions where meteorological interactions with pollutants are complex, accuracy can be difficult to achieve, largely due to persistent layering of some constituents. We characterize the layering of ozone soundings and related species measured from aircraft over two ground sites in suburban Washington, DC (Beltsville, MD, 39.05 N; 76.9 W) and Baltimore (Edgewood, MD, 39.4 N; 76.3 W) during A. M. Thompson : R. M. Stauffer : S. K. Miller : D. K. Martins Department of Meteorology, Pennsylvania State University, 503 Walker Building, University Park, PA 16802-5013, USA R. M. Stauffer e-mail: rms5539@psu.edu S. K. Miller e-mail: Sck117@psu.edu D. K. Martins e-mail: Dkm18@psu.edu E. Joseph Department of Physics and Astronomy, Howard University, 2355 Sixth Street NW, Washington, DC 20059, USA e-mail: ejoseph@howard.edu A. J. Weinheimer Atmospheric Chemistry Division, NCAR, Boulder, CO 80307, USA e-mail: wein@ucar.edu G. S. Diskin NASA Langley Research Center, MS 401B, Hampton, VA 23681, USA e-mail: glenn.s.diskin@nasa.gov Present Address: A. M. Thompson (*) NASA/Goddard Space Flight Center, Code 614, Greenbelt, MD 20771, USA e-mail: anne.m.thompson@nasa.gov