EGU General Assembly 2008
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  Information - AS3.04 Tropospheric Composition: Variability and Trends

Event Information
This session focuses on the variability of the tropospheric chemical
composition on seasonal to decadal timescales. In the context of the
changing climate and rising global pollution level it is important to
improve our understanding of the main mechanisms which control long- and
mid-term variability of tropospheric air pollutants and greenhouse
gases. Long-term monitoring data at surface sites, vertical soundings,
and satellite data, and multi-annual model simulations on the global or
regional scale can help to understand the role of anthropogenic and
natural factors in controlling the past and possible future changes of
the tropospheric chemical composition. We invite contributions on new
interpretations of long-term data sets of tropospheric ozone and its
precursors, aerosols and greenhouse gases. Results from new monitoring
networks or model simulations of tropospheric key compounds which may
undergo significant future changes (such as hydrogen, methane, nitrous
oxide) are also appreciated. Especially welcome are contributions which
link different data sets (e.g. satellite and in-situ data) or which use
observational data to evaluate global and regional model simulations.
The session is partly supported by ACCENT T&TP sub-project.

Preliminary List of Solicited Speakers
Dan Jaffe
Ingeborg Levin
M Naja
Mat Evans
Folkard Wittrock


General Statement
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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