Articles | Volume 17, issue 23
Atmos. Chem. Phys., 17, 14199–14217, 2017
https://doi.org/10.5194/acp-17-14199-2017

Special issue: The Saharan Aerosol Long-range Transport and Aerosol-Cloud-interaction...

Atmos. Chem. Phys., 17, 14199–14217, 2017
https://doi.org/10.5194/acp-17-14199-2017

Research article 30 Nov 2017

Research article | 30 Nov 2017

Dry versus wet marine particle optical properties: RH dependence of depolarization ratio, backscatter, and extinction from multiwavelength lidar measurements during SALTRACE

Moritz Haarig et al.

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AR by Moritz Haarig on behalf of the Authors (23 Sep 2017)  Author's response    Manuscript
ED: Publish as is (07 Oct 2017) by Joshua Schwarz
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Short summary
The depolarization ratio and the backscatter coefficient of marine particles are correlated with the relative humidity. The measurements were performed under atmospheric conditions with a multi-wavelength lidar system in pure marine conditions over Barbados in February 2014. For RH < 50 % the sea salt particles have a cubic-like shape resulting in an enhanced depolarization ratio of up to 0.15. This agrees with model results of cubic sea salt. The extinction enhancement f(RH) factor was derived.
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