Special Issue Article

The dependency of geoengineered sulfate aerosol on the emission strategy

  1. U. Niemeier*,
  2. H. Schmidt,
  3. C. Timmreck

Article first published online: 28 OCT 2010

DOI: 10.1002/asl.304

Issue

Atmospheric Science Letters

Atmospheric Science Letters

Special Issue: Geoengineering

Volume 12, Issue 2, pages 189–194, April/June 2011

Additional Information

How to Cite

Niemeier, U., Schmidt, H. and Timmreck, C. (2011), The dependency of geoengineered sulfate aerosol on the emission strategy. Atmosph. Sci. Lett., 12: 189–194. doi: 10.1002/asl.304

Author Information

  1. Max Planck Institute for Meteorology, Bundesstr. 53, Hamburg, Germany

*Max Planck Institute for Meteorology, Bundesstr. 53, 20246 Hamburg, Germany.

Publication History

  1. Issue published online: 15 APR 2011
  2. Article first published online: 28 OCT 2010
  3. Manuscript Accepted: 7 SEP 2010
  4. Manuscript Revised: 27 AUG 2010
  5. Manuscript Received: 25 FEB 2010

Funded by

  • German Research Foundation's Collaborative Research Center 574

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Keywords:

  • geoengineering;
  • sulfate aerosol;
  • aerosol microphysics;
  • stratosphere

Abstract

The climatic effect of geoengineered stratospheric sulfate aerosol depends on the strategy for sulfur emission that determines the microphysical evolution of the resulting sulfate layer, in particular the radius and radiative impact of the aerosols. Simulations with a three-dimensional general circulation model (GCM), including an aerosol microphysical model, show e.g. decreasing sulfate lifetime with increasing emission rate. Furthermore, scenarios that differ with respect to location, local and temporal distribution and chemical composition of the emissions are studied. The study shows detailed information on particle radius, sulfate burden and radiative impact for these scenarios. Copyright © 2010 Royal Meteorological Society

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