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JOURNAL OF GEOPHYSICAL RESEARCH,
VOL. 101, NO. D2,
PAGES 4485–4499,
1996
Ozone in the marine atmosphere observed during the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange
Kevin J. Noone
Richard D. Schillawski
Gregory L. Kok
Christopher S. Bretherton
Barry J. Huebert
Abstract
Measurements of vertical profiles and level averages of ozone over the north central Atlantic near the Azores are presented.
Lagrangian experiments were carried out in clean air and polluted air, and differences between the cases are discussed. Significant
vertical structure was found in the profiles from both cases. Trajectory analysis indicates that the source regions for ozone
in the marine boundary layer and in the air above the inversion capping the boundary layer were different. No significant
production or destruction of ozone in the boundary layer was observed in the clean case. No substantial differences in ozone
concentration between cloudy and clear air were observed, although cloud processes in the polluted case may have been partially
responsible for an observed overall reduction in boundary layer ozone concentration.
Received 31
August
1994;
accepted 16
March
1995.
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Citation: Noone, K. J., R. D. Schillawski, G. L. Kok, C. S. Bretherton, and B. J. Huebert
(1996),
Ozone in the marine atmosphere observed during the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange,
J. Geophys. Res.,
101(D2),
4485–4499.
Copyright 1996 by the American Geophysical Union.
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