Table 3. Ozone (O3) enriched plumes identified
over St. Louis, Missouri using ozonesondes vertical profile measurements
for two episodes. Included are the simulated biomass burning plumes and
stratospheric air masses entering the troposphere (stratospheric
intrusion (SI)) concentrations of a carbon monoxide (CO) tracer for each
plume. Plume ID corresponds to labeling in Figure 9.