Antarctic Surv., High Cross, Madingley Rd. Results demonstrate uncertainty about the impact of aircraft on ozone chemistry, and about lower stratosphere processes. Under one scenario, ozone loss at high latitudes will decrease, and ozone will increase in low to mid-latitudes.
Results are generally consistent with two-dimensional models.
However, comparisons with measurements suggest that fossil-fuel combustion, stratospheric NOx production and aircraft emissions are not the only significant sources of free tropospheric NOy over Hawaii and Alaska. Model results for the transport and dispersion of aircraft exhaust tracer suggest that, although more tracer from the tropical flight corridor is transported to higher altitude than from other corridors, one corridor is not inherently more or less polluting than another. V. Rizi et al., 23,141-23,164. Eng., Catholic Univ. Stud., Swiss Fed.