The polar stratospheric cloud event of January 24: Part 2. Photochemistry

Journal Article · Wed Feb 28 23:00:00 EST 1990 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/GL017i004p00541· OSTI ID:5332052

Jones, R L; McKenna, D S ^[1]; Solomon, S; Fahey, D W ^[2]; Poole, L R ^[3]; Brune, W H ^[4]; Toohey, D W; Anderson, J G ^[5]

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1. United Kingdom Meteorological Office, Bracknell (England)
2. NOAA Environmental Research Laboratory, Boulder, CO (USA)
3. NASA Langley Research Center, Hampton, VA (USA)
4. Pennsylvania State Univ., Pittsburgh (USA)
5. Harvard Univ., Cambridge, MA (USA)

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 DC-8. In this paper the authors present a diagnosis of observations obtained using the ER-2 on January 24, 1989, using a Lagrangian coupled microphysical-photochemical model. They interpret the high chlorine monoxide mixing ratios observed from the ER-2 on the afternoon of January 24, 1989 as a result of in situ heterogeneous release of reactive chlorine from the reservoirs HCl and ClONO{sub 2} 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.

• OSTI ID: 5332052
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 17:4; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
AEROSOLS
AIRCRAFT
ARCTIC REGIONS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
CHLORINE OXIDES
CLIMATE MODELS
CLOUDS
COLLOIDS
DISPERSIONS
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
HALOGEN COMPOUNDS
HETEROGENEOUS EFFECTS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LAYERS
MATHEMATICAL MODELS
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
OZONE LAYER
PARTICLES
PARTICULATES
PHOTOCHEMICAL REACTIONS
POLAR REGIONS
REACTION KINETICS
SOLS
STRATOSPHERE
SYNTHESIS