effects of anthropogenic emissions on stratospheric ozone l.
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EFFECTS OF ANTHROPOGENIC EMISSIONS ON STRATOSPHERIC OZONE. BY. NWADIKE ONYINYECHUKWU. Outline. Introduction Atmospheric Forcing of Climate Change: Anthropogenic effect Ozone Production and Loss Processes Effect of Volcanic Eruption Effect of Montreal Protocol on Ozone Recovery

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Presentation Transcript
outline
Outline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
outiline
Outiline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
slide4

The climate system and interaction

Glossary: Luft=air, Eis=ice, Wechselwirkung=interaction, Kreisläufe=cycles, kurzwellig=shortwave, langwellig=long wave, Schnee=snow, Weltraum=space,Strömung=current, Seen=lakes, Flüsse=rivers, Niederschlag=precipitation, Zuläufe=streams, Wolken=clouds

Mark Weber, 2004

outline5
Outline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
atmospheric forcing of climate change anthropogenic effect
+VE Forcing, warming of the earth by WMGHG conc.

-VE Forcing, ozone depletion in stratosphere, cooling of earth.

Atmospheric Forcing of Climate Change: Anthropogenic effect

Primary forcing mechanism affecting

stratospheric climate change

WMO, 2006

outiline9
Outiline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
polar ozone depletion
Polar Ozone Depletion

Hofmann et al. 1994

outline15
Outline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
effect of volcanism
Effect of Volcanism
  • Large volcanic eruptions decreases solar transmission to Earth’s surface.
  • Increase in ozone depletion by the emitted particles.

WMO, 2006

outline17
Outline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
outline19
Outline
  • Introduction
  • Atmospheric Forcing of Climate Change: Anthropogenic effect
  • Ozone Production and Loss Processes
  • Effect of Volcanic Eruption
  • Effect of Montreal Protocol on Ozone Recovery
  • Conclusion / Summary
conclusions summary
Conclusions/Summary
  • CFCs account for large ozone destruction because they have longer lifetime
  • Human activites contribute to indirect radiative forcing effect
  • Volcanic eruptions is a natural process that enhance Ozone depletion but cannot be predicted.
  • Montreal Protocol may lead to a complete ozone recovery by the year 2100