Articles | Volume 13, issue 5
https://doi.org/10.5194/amt-13-2623-2020
https://doi.org/10.5194/amt-13-2623-2020
Research article
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20 May 2020
Research article | Highlight paper |  | 20 May 2020

Simultaneous measurements of the relative-humidity-dependent aerosol light extinction, scattering, absorption, and single-scattering albedo with a humidified cavity-enhanced albedometer

Jiacheng Zhou, Xuezhe Xu, Weixiong Zhao, Bo Fang, Qianqian Liu, Yuanqing Cai, Weijun Zhang, Dean S. Venables, and Weidong Chen

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Cited articles

Abu-Rahmah, A., Arnott, W. P., and Moosmüller, H.: Integrating nephelometer with a low truncation angle and an extended calibration scheme, Meas. Sci. Technol., 17, 1723–1732, https://https://doi.org/10.1088/0957-0233/17/7/010, 2006. 
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Baynard, T., Garland, R. M., Ravishankara, A. R., Tolbert, M. A., and Lovejoy, E. R.: Key factors influencing the relative humidity dependence of aerosol light scattering, Geophys. Res. Lett., 33, L06813, https://doi.org/10.1029/2005GL024898, 2006. 
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Bohensky, G., Sunada, C., Smith, P., Wiedensohler, A., and Tuch, T.: Characterizing the Particle Losses of a Large Diameter Nafion® Dryer, available at: https://www.permapure.com/scientific-emissions/wp-content/uploads/2014/06/MD-700-TROPOS-Presentation-10-2014.pdf (last access: 20 May 2020), 2014. 
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Short summary
We report the first demonstration of a humidified cavity-enhanced albedometer (H-CEA) that combines a broadband cavity-enhanced aerosol albedometer with a humidigraph system for simultaneous and accurate measurements of multiple optical hygroscopic parameters (f(RH)ext,scat,abs,ω) at λ = 532 nm. The instrument is suitable for operating under high RH-conditions and has sampling advantages over independent measurements of different parameters with different instruments.