Loss of ozone in the Arctic vortex for the winter of 1989

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/GL017i004p00561· OSTI ID:5397171

Salawitch, R J; McElroy, M B; Yatteau, J H; Wofsy, S C ^[1]; Schoeberl, M R; Lait, L R; Newman, P A ^[2]; Chan, K R; Loewenstein, M; Podolske, J R; Strahan, S E ^[3]; Proffitt, M H ^[4]

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1. Harvard Univ., Cambridge, MA (USA)
2. NASA Goddard Space Flight Center, Greenbelt, MD (USA)
3. NASA Ames Research Center, Moffett Field, CA (USA)
4. NOAA Aeronomy Laboratory, Boulder, CO (USA) Univ. of Colorado, Boulder (USA)

Measurements of ClO (Brune et al., 1990) acquired during the Airborne Arctic Stratospheric Expedition are used to infer concentrations of reactive chlorine (ClO + 2 {times} Cl{sub 2}O{sub 2}). Observed fields of potential temperature and potential vorticity are used to extrapolate in situ data to larger regions of the vortex. Calculated values of the loss rate of O{sub 3}, based on estimates of reactive chlorine and measurements of BrO (Toohey et al., 1990), suggest that the loss of O{sub 3} was about 12% for levels of the atmosphere with potential temperatures between 440 and 470 K over the 39 day duration of the ER-2 flights into the polar vortex. Calculated loss rates agree with observed rates of removal of O{sub 3}, although significant uncertainties exist for each.

• OSTI ID: 5397171
• 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

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Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIRCRAFT
ARCTIC REGIONS
ATMOSPHERIC CHEMISTRY
BOUNDARY CONDITIONS
BROMINE COMPOUNDS
BROMINE OXIDES
CALCULATION METHODS
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HALOGEN COMPOUNDS
HIGH TEMPERATURE
INSOLATION
LAYERS
LOSSES
OXIDES
OXYGEN COMPOUNDS
OZONE
OZONE LAYER
POLAR REGIONS
STRATOSPHERE
TEMPERATURE DEPENDENCE
VARIATIONS
VORTICES