Articles | Volume 20, issue 3
Atmos. Chem. Phys., 20, 1431–1449, 2020
https://doi.org/10.5194/acp-20-1431-2020

Special issue: Marine organic matter: from biological production in the ocean...

Atmos. Chem. Phys., 20, 1431–1449, 2020
https://doi.org/10.5194/acp-20-1431-2020

Research article 06 Feb 2020

Research article | 06 Feb 2020

Characterization of aerosol particles at Cabo Verde close to sea level and at the cloud level – Part 1: Particle number size distribution, cloud condensation nuclei and their origins

Xianda Gong et al.

Data sets

Ground-based measurements on aerosol particles at Cape Verde (Sep–Oct 2017) Xianda Gong, Heike Wex, Jens Voigtländer, Khanneh Wadinga Fomba, Kay Weinhold, Manuela van Pinxteren, Silvia Henning, Thomas Müller, Hartmut Herrmann, and Frank Stratmann https://doi.pangaea.de/10.1594/PANGAEA.905070

Short summary
We characterized the aerosol particles in Cabo Verde at sea and cloud levels. We found four well-separable types of PNSDs, with the strongest differences between air masses coming from the ocean compared to from the African continent. During the strongest observed dust periods, CCN concentrations were 2.5 higher than during clean marine periods. The hygroscopicity of the particles did not vary much between different periods. Aerosol at sea level and on the mountaintop was well in agreement.
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