Ozone Loss Inside the Northern Polar Vortex During the 1991-1992 Winter
- 27 August 1993
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 261 (5125) , 1150-1154
- https://doi.org/10.1126/science.261.5125.1150
Abstract
Measurements made in the outer ring of the northern polar vortex from October 1991 through March 1992 reveal an altitude-dependent change in ozone, with a decrease at the bottom of the vortex and a substantial increase at the highest altitudes accessible to measurement. The increase is the result of ozone-rich air entering the vortex, and the decrease reflects ozone loss accumulated after the descent of the air through high concentrations of reactive chlorine. The depleted air that is released out of the bottom of the vortex is sufficient to significantly reduce column ozone at mid-latitudes.Keywords
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