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Title:
Atmospheric ozone depletion by nuclear weapons testing
Authors:
Christie, A. D.
Affiliation:
AA(Atmospheric Environment Service, Downsview, Ontario, Canada)
Publication:
Journal of Geophysical Research, Volume 81, Issue 15, pp. 2583-2594 (JGR Homepage)
Publication Date:
05/1976
Origin:
AGU; WILEY
AGU Keywords:
Meteorology: Chemical composition and chemical interactions
Abstract Copyright:
Copyright 1976 by the American Geophysical Union.
DOI:
10.1029/JC081i015p02583
Bibliographic Code:
1976JGR....81.2583C

Abstract

Local changes in atmospheric ozone relative to background regional changes over a period during which a small megaton nuclear weapon was detonated in tropical latitudes have been studied by using backscatter UV observations from Nimbus 4 satellite. Little change in total ozone was observed, less than might have been expected from current models of NOx catalytic depletion. A further attempt was made to isolate changes at different levels by using derived ozone profile data from orbits intersecting the envelope containing bomb-modified air without success because of contamination of the data on shorter wavelengths. We are led to conclude either that NOx yields have been overestimated or that there is an efficient NOx sink in the stratosphere that is not yet recognized.
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