Articles | Volume 18, issue 18
https://doi.org/10.5194/acp-18-13429-2018
https://doi.org/10.5194/acp-18-13429-2018
Research article
 | 
21 Sep 2018
Research article |  | 21 Sep 2018

Composition and mixing state of atmospheric aerosols determined by electron microscopy: method development and application to aged Saharan dust deposition in the Caribbean boundary layer

Konrad Kandler, Kilian Schneiders, Martin Ebert, Markus Hartmann, Stephan Weinbruch, Maria Prass, and Christopher Pöhlker

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Cited articles

Agresti, A. and Coull, B. A.: Approximate Is Better than “Exact” for Interval Estimation of Binomial Proportions, Am. Stat., 52, 119–126, https://doi.org/10.2307/2685469, 1998. 
Aluko, O. and Noll, K. E.: Deposition and Suspension of Large, Airborne Particles, Aerosol Sci. Tech., 40, 503–513, 2006. 
Andreae, M. O.: Climatic effects of changing atmospheric aerosol levels, in: Future climates of the world: a modelling perspective, edited by: Henderson-Sellers, A., World Survey of Climatology, Elsevier, Amsterdam, the Netherlands, 347–398, 1995. 
Andreae, M. O., Charlson, R. J., Bruynseels, F., Storms, H., Grieken, R. V., and Maenhaut, W.: Internal Mixture of Sea Salt, Silicates, and Excess Sulfate in Marine Aerosols, Science, 232, 1620–1623, 1986. 
Andreae, M. O., Elbert, W., Gabriel, R., Johnson, D. W., Osborne, S., and Wood, R.: Soluble ion chemistry of the atmospheric aerosol and SO2 concentrations over the eastern North Atlantic during ACE-2, Tellus B, 52, 1066–1087, https://doi.org/10.3402/tellusb.v52i4.17087, 2000. 
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Short summary
Aging of transported Saharan dust in the Caribbean was observed by electron microscopy, yielding size, chemical composition and mixing state for each individual particle. Models were developed for assessing mixing relevant for the atmosphere. Particles become internally mixed with sulfate during transport and sea salt in the Caribbean boundary layer. The mixing increases deposition velocity and dust cloud activation, and thus may impact on radiative and cloud nucleating properties.
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