Quantifying variability in tropospheric ozone and carbon monoxide over the Southeastern United States in 2004-2005 using TES nadir measurements

TES is a Fourier Transform Spectrometer making measurements of trace gases in the Earth's troposphere from the NASA Aura spacecraft. Among the measurements made by TES over the past year was a series of high spatial resolution nadir measurements over the Southeastern portion of the United States in October-November 2004 and again in July-August 2005. We will use TES data from these special observations to examine enhanced levels of tropospheric ozone seen over the southeastern US during the summer months and compare those observations to the October-November 2004 data. The vertical profiles and latitudinal gradients of ozone derived from TES observations will be used to characterize the spatial structure of the Southeastern ozone maximum. TES measurements of carbon monoxide and TES standard 'global survey' measurements will provide further insight into understanding the chemical composition of the troposphere above this region of the US.