Geophysikalisches Kolloquium: The Role of Stratospheric Dynamics in Chemistry-Climate Coupling

The last few years have seen the emergence of Chemistry Climate Models (CCMs) as central tools in stratospheric science, as increasing computing resources have permitted the generation of long time series and ensembles of realizations. It has become clear that CCMs exhibit much of the dynamical complexity previously seen in mechanistic models (e.g. internal decadal variability, complex tropical-polar coupling), as well as a strong sensitivity to the parameterization of gravity-wave drag, raising issues of both statistical and physical robustness. Given the growing importance of CCM simulations for science policy through the Ozone Assessments and the IPCC reports, these issues are reinvigorating the study of large-scale stratosphere-troposphere dynamics. This talk will review some recent results and discuss future challenges in these areas.




15:15 Uhr


Bundesstr. 53, room 022/023
Seminar Room 022/023, Ground Floor, Bundesstrasse 53, 20146 Hamburg, Hamburg


Theodore G. Shepherd, University of Toronto


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