ANNOUNCEMENTS:

SPARC Workshop on the Brewer-Dobson Circulation, 25-29 June 2012
Grindelwald, Switzerland

Abstract submission deadline: 15 March 2012
Registration deadline: 30 May 2012

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SPARC Stratospheric Sudden Warming Workshop, 22-24 February 2012, Kyoto, Japan

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SPARC DynVar on BAMS:

Assessing and Understanding the Impact of Stratospheric Dynamics and Variability on the Earth System. Gerber et al 2012, Bulletin of the American Meteorological Society

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SPARC DynVar Activity Stratosphere-Troposphere Coupling Poster Cluster @ WCRP OSC 2011, click here.

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SPARC DynVar on CLIVAR Exchange:
Stratosphere-resolving Models in CMIP5
Manzini et al 2011, p29

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SPARC DynVar workshop 2 outcomes:  SPARC Newsletter 36 (Manzini et al, 19-22), January 2011 issue.

Volcanic forcing

Contact: Matthew Toohey (mtoohey@ifm-geomar.de)

Summary: Large positive perturbations to stratospheric sulfate aerosol burden resulting from volcanic eruptions have significant -- if short-lived --  effects on the Earth's surface temperature and atmospheric circulation.
Assessing the response to prescribed volcanic forcings in climate model simulations is useful for model comparison, and promises to advance our understanding of the mechanisms by which volcanic eruptions can affect atmospheric dynamics.