Severe Arctic ozone loss in the winter 2004/2005: observations from ACE-FTS

Details Severe Arctic ozone loss in the winter 2004/2005: observations from ACE-FTS Severe Arctic ozone loss in the winter 2004/2005: observations from ACE-FTS

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3315801j&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 15, CiteID L15801

Physics

25

Atmospheric Composition And Structure: Middle Atmosphere: Composition And Chemistry, Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513), Atmospheric Processes: Remote Sensing, Atmospheric Processes: Stratosphere/Troposphere Interactions

Scientific paper

The severe Arctic ozone reduction in the winter 2004/2005 is analyzed using ACE-FTS observations and four different analysis techniques: correlations between ozone and long-lived tracers (adjusted to account for mixing), an artificial tracer correlation method, a profile-descent technique, and the empirical relationship between ozone loss and potential PSC volume. The average maximum ozone loss was about 2.1 ppmv at 475 K-500 K (~18 km-20 km). Over 60% of the ozone between 425 K-475 K (~16 km-18 km) was destroyed. The average total column ozone loss was 119 DU, ~20-30 DU larger than the largest previously observed Arctic ozone loss in the winter 1999/2000.

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