Articles | Volume 17, issue 11
https://doi.org/10.5194/acp-17-6865-2017
https://doi.org/10.5194/acp-17-6865-2017
Research article
 | 
12 Jun 2017
Research article |  | 12 Jun 2017

Disk and circumsolar radiances in the presence of ice clouds

Päivi Haapanala, Petri Räisänen, Greg M. McFarquhar, Jussi Tiira, Andreas Macke, Michael Kahnert, John DeVore, and Timo Nousiainen

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Cited articles

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The dependence of solar-disk and circumsolar radiances on ice cloud properties is studied with a Monte Carlo radiative transfer model. Ice crystal roughness (or more generally, non-ideality) is found to be the most important parameter influencing the circumsolar radiance, and ice crystal sizes and shapes also play significant roles. When comparing with radiances measured with the SAM instrument, rough ice crystals reproduce the measurements better than idealized smooth ice crystals do.
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