Articles | Volume 16, issue 23
Atmos. Chem. Phys., 16, 15075–15095, 2016
https://doi.org/10.5194/acp-16-15075-2016

Special issue: BACCHUS – Impact of Biogenic versus Anthropogenic emissions...

Atmos. Chem. Phys., 16, 15075–15095, 2016
https://doi.org/10.5194/acp-16-15075-2016
Research article
06 Dec 2016
Research article | 06 Dec 2016

Heterogeneous ice nucleation on dust particles sourced from nine deserts worldwide – Part 1: Immersion freezing

Yvonne Boose et al.

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Short summary
We compare the immersion freezing behavior of four airborne to 11 surface-collected dust samples to investigate the role of different minerals for atmospheric ice nucleation on desert dust. We find that present K-feldspars dominate at T > 253 K, while quartz does at colder temperatures, and surface-collected dust samples are not necessarily representative for airborne dust. For improved ice cloud prediction, modeling of quartz and feldspar emission and transport are key.
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