Articles | Volume 20, issue 22
Research article
19 Nov 2020
Research article |  | 19 Nov 2020

The effects of morphology, mobility size, and secondary organic aerosol (SOA) material coating on the ice nucleation activity of black carbon in the cirrus regime

Cuiqi Zhang, Yue Zhang, Martin J. Wolf, Leonid Nichman, Chuanyang Shen, Timothy B. Onasch, Longfei Chen, and Daniel J. Cziczo


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Short summary
Black carbon (BC) is considered the second most important global warming agent. However, the role of BC aerosol–cloud–climate interactions in the cirrus formation remains uncertain. Our study of selected BC types and sizes suggests that increases in diameter, compactness, and/or surface oxidation of BC particles lead to more efficient ice nucleation (IN) via pore condensation freezing (PCF) pathways,and that coatings of common secondary organic aerosol (SOA) materials can inhibit ice formation.
Final-revised paper