Impact of Pollutants on the Ozone Layer

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Impact of Pollutants on the Ozone Layer

• ozone observations
• the Ozone Hole
• Heterogeneous chemistry
• global ozone depletion

Dr Tony Cox ERCA 2004 -Lecture 3
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From TOMS Satellite data
R.STOLARSKI,ET AL., NASA
Ozone Column trends
Antarctic Spring From Ground Based UV
spectrometer
FARMAN,ET AL., BRITISH ANTACTIC SURVEY
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1987
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FARMAN,ET AL., BRITISH ANTACTIC SURVEY
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Descent of air from upper strat.
containing HCl ClONO2
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ClO
Chlorine Monoxide at 50 hPa
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Chlorine Nitrate at 50 hPa
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Future Development of Polar zone Depletion
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Aerosol surface Area from sounding
Stratospheric aerosol evolution from
backscatter LIDAR measurements at mid-latitudes