1. I/1 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?

2. I/2 Atmospheric transport and ozone chemistry SS2008 Special topics Thursday, 14:15h (sharp)-15:45h, Room NW1/S3032 Lecturer: Mark Weber Contact: Room NW1/S4350, Tel. –2362, weber@uni-bremen.de 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

3. I/3 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

4. I/4 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

5. I/5 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/

6. I/6 WMO ozone assessment and Montreal Protocol www.iup.uni-bremen.de/~weber/WMO2006/

7. I/7 WMO ozone assessment and Montreal Protocol www.iup.uni-bremen.de/~weber/WMO2006/

8. I/8 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:

9. I/9 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

10. I/10 Student presentations

11. I/11 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!

12. I/12 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

13. I/13 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

14. I/14 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

15. I/15 student presentations about WMO ozone assessment 2006 6th presentation:  Section 6.2-6.5: Evaluation of ozone changes