High-Altitude, Tropical Latitude CIO, BrO, O3, P and T Observations from the Perseus Aircraft for the 1994 ASHOM/SPADE-2 Missions

摘要

The Airborne Southern Hemisphere Ozone Experiment (ASHOE) was organized to address the following issues: The downward trend in total ozone at sub-polar and mid latitudes is large and has been observed year-round, with the greatest trends occurring when the vortex is cold enough to support the formation of Polar Stratospheric Clouds, that initiate the chlorine based chemistry that causes the antarctic ozone 'holes.' The spreading of the ozone 'hole' to mid latitudes. The relationship between ozone loss in the very lowest part of the stratosphere and the greenhouse effect. The role of aerosols in perturbing lower stratospheric chemistry. The transport of material injected into the lower stratosphere at tropical and midlatitudes is a central issue in assessing the effects on stratospheric ozone by exhaust emissions from possible future high-speed civil transport aircraft. This research effort focused on the simultaneous observation from the NASA ER-2 aircraft of the radicals listed in the title.