Mineral dust is one of the most important dust particulate types, and dust particles are irregular in shape. In the climate models, however, dust particles are currently presumed to be spherical. On the basis of the tests now completed using the climate aerosol model, this simplification does not lead to significant errors.

More information:

Senior researcher Petri Räisänen, tel. +359 29 539 2224, petri.raisanen@fmi.fi

Räisänen, P., P. Haapanala, C. E. Chung, M. Kahnert, R. Makkonen, J. Tonttila, and T. Nousiainen (2013). Impact of dust particle non-sphericity on climate simulations. Quart. J. Roy. Meteor. Soc., 139, 2222-2232. DOI:10.1002/qj.2084

http://onlinelibrary.wiley.com/doi/10.1002/qj.2084/abstract

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