In situ ozone measurements within the 1987 Antarctic ozone hole from a high-altitude ER-2 aircraft
- NOAA Aeronomy Lab., Boulder, CO (United States) Univ. of Colorado, Boulder (United States)
- NOAA Aeronomy Lab., Boulder, CO (United States)
- NASA Ames Research Center, Moffett Field, CA (United States)
In situ ozone measurements were made from the ER-2 aircraft during the 1987 Airborne Antarctic Ozone Experiment both inside and outside the ozone hole. Midday measurements from late August until late September during aircraft ascent near 53{degree}S latitude indicate no clear temporal trend in ozone mixing ratio but instead reflect the distance of the measurement from the chemically perturbed region. The measurements made within the ozone hole at 72{degree}S show altitude dependent decreases in ozone of 61% at a potential temperature of 425 K down to 39% at 365 K. Temporal trends are also calculated at various positions relative to the boundary of the chemically perturbed region to locate the region of large ozone decreases and thereby accurately locate the boundary of the ozone hole.
- OSTI ID:
- 7251865
- Journal Information:
- Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 94:D14; ISSN 0148-0227; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
290301 -- Energy Planning & Policy-- Environment
Health
& Safety-- Regional & Global Environmental Aspects-- (1992-)
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIRCRAFT
ANTARCTIC REGIONS
BOUNDARY CONDITIONS
ECOLOGICAL CONCENTRATION
ELECTROMAGNETIC RADIATION
HOLES
LAYERS
LOSSES
MIXING
OZONE
OZONE LAYER
PHOTOMETRY
POLAR REGIONS
RADIATIONS
ULTRAVIOLET RADIATION