Articles | Volume 14, issue 2
Atmos. Meas. Tech., 14, 819–851, 2021
Atmos. Meas. Tech., 14, 819–851, 2021
Research article
03 Feb 2021
Research article | 03 Feb 2021

Detailed characterization of the CAPS single-scattering albedo monitor (CAPS PMssa) as a field-deployable instrument for measuring aerosol light absorption with the extinction-minus-scattering method

Rob L. Modini et al.

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Short summary
Extinction-minus-scattering is an important method for measuring aerosol light absorption, but its application in the field presents a number of challenges. A recently developed instrument based on this method – the CAPS PMssa – has the potential to overcome some of these challenges. We present a compilation of theory, lab measurements, and field examples to characterize this instrument and show the conditions under which it can deliver reliable absorption measurements for atmospheric aerosols.