Physics
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..541j&link_type=abstract
Geophysical Research Letters, Supplement (ISSN 0094-8276), vol. 17, March 1990, p. 541-544. Research supported by the Department
Physics
15
Arctic Regions, Atmospheric Chemistry, Cloud Physics, Photochemical Reactions, Stratosphere, Atmospheric Circulation, Chlorine Oxides, Hydrochloric Acid, Synoptic Meteorology
Scientific paper
During the 1988/89 Airborne Arctic Stratospheric Expedition (AASE), observations of the chemical composition, aerosol characteristics and atmospheric state were obtained from two aircraft, a NASA ER-2 and a DC-8. This paper presents a diagnosis of observations obtained using the ER-2 on January 24, 1989, using a Lagrangian coupled microphysical-photochemical model. The high chlorine monoxide mixing ratios observed from the ER-2 on the afternoon of January 24, 1989 are interpreted as a result of in situ heterogeneous release of reactive chlorine from the reservoirs HCl and CIONO2 on type-1 polar stratospheric cloud particles observed to be present at that time. This essential element in theories of polar ozone depletion has never before been observed directly in the stratosphere.
Brune William H.
Jones Robert L.
McKenna Daniel S.
Poole Lamont R.
Solomon Sean
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