EGU General Assembly 2008
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  Information - IG5 Stable Isotopes in Atmospheric Research (co-listed in AS)

Event Information
Stable isotopes of carbon, hydrogen, and oxygen in atmospheric trace gases provide a powerful constraint on chemical, physical, and biological processes that affect our atmosphere. Measurement of stable isotope ratios is by now an established tool to gain insight into the processes determining the distribution, sources, and sinks of important atmospheric trace gases such as carbon dioxide, carbon monoxide, methane, hydrogen, nitrous oxide and ozone. Recently, first measurements of carbon isotope ratios in volatile organic compounds have been done. Meanwhile, a number of laboratory studies reported kinetic isotope effects in the reaction of VOC with OH, Cl, and ozone. Due to the broad spectrum of compounds with a large range of atmospheric life times, the recently developed isotopic hydrocarbon clock concept allows to get further information on chemical and physical processes in the atmosphere. Presently, these methods are also extended to investigate particulate matter, especially secondary organic aerosols. As a result, the combination of conventional and stable isotope techniques will significantly advance our understanding of the behaviour of trace compounds in the atmosphere.
The session is open to all contributions related to stable isotope studies of trace gases in the atmosphere, to field studies, laboratory and simulation experiments, technical developments, as well as modeling activities regarding stable isotopes as tracers of atmospheric processes.

Topics which should be addressed in this session are:
Stable isotope ratios in atmospheric trace gases
Kinetic isotope effects
Field and simulation experiments
Model studies including stable isotope ratios
Stable isotope ratios in the formation of aerosols from biogenic and anthropogenic VOC
Technical developments (sampling techniques, analytical techniques etc.)

Preliminary List of Solicited Speakers


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The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.

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