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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

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Overview atmospheric transport and ozone chemistry ss2008
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

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


Literature SS2008

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.


Criterias for succesful participation in lecture SS2008

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)


Student presentations about wmo ozone assessment 2006
student presentations about WMO ozone assessment 2006 SS2008

  • 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
WMO ozone assessment and Montreal Protocol SS2008

  • www.iup.uni-bremen.de/~weber/WMO2006/


Wmo ozone assessment and montreal protocol1
WMO ozone assessment and Montreal Protocol SS2008

  • www.iup.uni-bremen.de/~weber/WMO2006/


Important issues in the assessment
Important issues in the assessment SS2008

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 assessment1
Important issues in the assessment SS2008

„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

Sections in the WMO ozone assessment 2006:

I Source gases

II Ozone changes

III Future expectations for ozone, ozone depletion substances, and UV

Preface WMO O3 Assessment 2006:

  • „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 about wmo ozone assessment 20061
student presentations about WMO ozone assessment 2006 SS2008

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 20062
student presentations about WMO ozone assessment 2006 SS2008

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 20063
student presentations about WMO ozone assessment 2006 SS2008

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 20064
student presentations about WMO ozone assessment 2006 SS2008

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 20065
student presentations about WMO ozone assessment 2006 SS2008

6th presentation:

Section 6.2-6.5: Evaluation of ozone changes


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