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Overview: Atmospheric transport and ozone chemistry SS2008. Learning more about variability of atmospheric ozone related to transport and chemistry How is chemistry and transport changing in a future climate?. Atmospheric transport and ozone chemistry SS2008 Special topics - PowerPoint PPT Presentation
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Overview: Atmospheric transport and ozone chemistry SS2008
Learning more about variability of atmospheric ozone related to transport and chemistry
How is chemistry and transport changing in a future climate?
Atmospheric transport and ozone chemistrySS2008
Special topicsThursday, 14:15h (sharp)-15:45h, Room NW1/S3032
Lecturer: Mark WeberContact: Room NW1/S4350, Tel. –2362, [email protected]
Topics
• atmospheric dynamics (circulation and transport)
• radiative transfer, heating, and vertical transport
• middle atmospheric chemistry
• ozone chemistry and catalytic cycles
• heterogeneous chemistry and the ozone hole
• the tropical tropopause
• solar (decadal) variability and dynamical coupling
• greenhouse gasses and climate-chemistry interaction
Andrews, D. G., J. R. Holton, and C.B. Leovy, Middle Atmosphere Dynamics, Academic Press, Orlando, 1990.
Holton, J. R., An Introduction to Dynamic Meteorology, 3rd ed., Academic Press, San Diego, 1992.
Brasseur G., et al., Atmospheric Chemistry and Global Change, Oxford University Press, Oxford, 1999.
Seinfeld, J. H., Pandis, S. N., Atmospheric Chemistry and Physics – From Air Pollution to Climate Change, John Wiley & Sons, New York, 1998.
Wayne, R. P., Chemistry of Atmospheres, 3rd Ed., Clarendon Press, Oxford, 2003.
Brasseur, G., and Solomon, S., Aeronomy of the Middle Atmosphere, 3rd ed., Springer, Dordrecht, 2005.
Literature
Master/Certificate students
• brief presentation (~ 15 min) at the end of lecture period
• oral examination (~30 min) after lecture period
• no exercises!
Diplom Wahlfach/Nebenfach students:• sucessful participation small presentation (~ 15 min)
Criterias for succesful participation in lecture
student presentations about WMO ozone assessment 2006
Summary of selected chapters/sections from WMO Scientific Assessment of Ozone Depletion 2006
15 minute presentations at the end of the semester
http://www.wmo.ch/web/arep/reports/ozone_2006/ozone_asst_report.html
http://www.iup.uni-bremen.de/~weber/WMO2006/
WMO ozone assessment and Montreal Protocol
www.iup.uni-bremen.de/~weber/WMO2006/
WMO ozone assessment and Montreal Protocol
www.iup.uni-bremen.de/~weber/WMO2006/
Important issues in the assessment
ozone recovery expected from leveling off of stratospheric chlorine (Montreal Protocol and ammendments), but role of stratospheric bromine/shortlived substances may become more important
How does climate change affect the ozone layer (Antarctic ozone hole anomaly in 2002? changes in atmpospheric transport and chemistry?)
Preface WMO O3 Assessment 2006:
Important issues in the assessment
„state of the ozone layer and its expected recovery“ Chapter 3: Global Ozone: Past and Present Chapter 4: Polar Ozone: Past and present
„specific aspects of the Antarctic ozone hole ...(ozone hole anomaly) in 2002“
Chapter 4: Polar Ozone: Past and present
„trends in the concentration of ozone depleting substances“ Chapter 1: Long-lived Substances Chapter 2: Halogenated Very Short-Lived
Substances
„climate change on ozone layer recovery“ Chapter 5: Ozone-Climate Interaction
Preface WMO O3 Assessment 2006:
Sections in the WMO ozone assessment 2006:
I Source gases
II Ozone changes
III Future expectations for ozone, ozone depletion substances, and UV
„stratospheric bromine ... its impact on the ozone layer“ Chapter 2: Halogenated Very Short-Lived
Substances Chapter 4: Polar Ozone: Past and present Chapter 6: The Ozone Layer in the 21st
Century
„future projections and scenarios“ Chapter 6: The Ozone Layer in the 21st
Century Chapter 7: Surface UV radiation: Past,
Present, and Future Chapter 8: Halocarbon Scenarios, Ozone
Depeletion Potentials, and Global Warming Potentials
„UV (surface) radiation“ Chapter 7: Surface UV radiation: Past,
Present, and Future
Student presentations
student presentations about WMO ozone assessment 2006
Select a topic or subsection until May 8 after personal consultation in my office
Presentation shall be brief, just summarise important findings (scientific
summary in the beginnning of each chapter) supported by figures from the chapters
discuss open scientific questions no more than 8-10 viewgraphs per
presentations!
student presentations about WMO ozone assessment 2006
1st presentation : Section: 3.2 and 3.3:
Observations of ozone changes, aerosols, and NO2
2nd presentation: Section 3.3: Understanding and
interpretations of ozone changes
student presentations about WMO ozone assessment 2006
3rd presentation: Section 4.1 and 4.2: Polar
stratospheric observations update and progress in our understanding of physical and chemical processes
4th presentation: Section 4.3 and 5.1:
Stratosphere-troposphere coupling and recent polar ozone changes
student presentations about WMO ozone assessment 2006
4th presentation: Section 4.3 and 5.1:
Stratosphere-troposphere coupling and recent polar ozone changes
5th presentation : Section 5.3: Effect of
anthropogenic climate change and emission on stratospheric ozone
student presentations about WMO ozone assessment 2006
6th presentation: Section 6.2-6.5: Evaluation of
ozone changes
