Articles | Volume 14, issue 2
https://doi.org/10.5194/amt-14-819-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-819-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Feb 2021
Research article |
| 03 Feb 2021
| 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
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
Joel C. Corbin
Metrology Research Centre, National Research Council Canada, 1200
Montreal Road, Ottawa K1A 0R6, Canada
Benjamin T. Brem
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
Martin Irwin
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
now at: Catalytic Instruments GmbH, Zellerhornstrasse 7, 83026 Rosenheim,
Germany
Michele Bertò
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
Rosaria E. Pileci
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
Prodromos Fetfatzis
Institute of Nuclear and Radiological Science & Technology, Energy
& Safety N.C.S.R. ”Demokritos”, Attiki, Greece
Kostas Eleftheriadis
Institute of Nuclear and Radiological Science & Technology, Energy
& Safety N.C.S.R. ”Demokritos”, Attiki, Greece
Bas Henzing
Netherlands Organisation for Applied Scientific Research (TNO),
Princetonlaan 6, 3584 Utrecht, the Netherlands
Marcel M. Moerman
Netherlands Organisation for Applied Scientific Research (TNO),
Princetonlaan 6, 3584 Utrecht, the Netherlands
Fengshan Liu
Metrology Research Centre, National Research Council Canada, 1200
Montreal Road, Ottawa K1A 0R6, Canada
Thomas Müller
Leibniz Institute for Tropospheric Research (TROPOS), Permoserstrasse
15, 04318 Leipzig, Germany
Martin Gysel-Beer
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI),
5232 Villigen PSI, Switzerland
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- Equivalent radius of atmosphere aerosol in haze weather based on laser scattering G. Feng et al. 10.1364/AO.509518
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- Absorption instruments inter-comparison campaign at the Arctic Pallas station E. Asmi et al. 10.5194/amt-14-5397-2021
- A Comprehensive Review on Study Methods of Aerosol Optical Properties in Different Dimensions Y. Liu et al. 10.1109/ACCESS.2023.3266333
- Crumpled few-layer graphene: Connection between morphology and optical properties S. Musikhin et al. 10.1016/j.carbon.2021.06.052
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- Characterizing winter-time brown carbon: Insights into chemical and light-absorption properties in residential and traffic environments L. Barreira et al. 10.1016/j.scitotenv.2024.177089
- Characterisation of particle single-scattering albedo with a modified airborne dual-wavelength CAPS monitor C. Yu et al. 10.5194/amt-17-3419-2024
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- Metrological traceable calibration of organic carbon and elemental carbon based on laboratory-generated reference materials Y. Liu et al. 10.1016/j.jes.2023.10.031
- Evaluation of the 365 nm CAPS PM SSA monitor and its use in both laboratory and field measurements T. Ajith et al. 10.1080/02786826.2025.2488478
- Relative errors in derived multi-wavelength intensive aerosol optical properties using cavity attenuated phase shift single-scattering albedo monitors, a nephelometer, and tricolour absorption photometer measurements P. Weber et al. 10.5194/amt-15-3279-2022
- Self-calibrating aerosol absorption measurements using co-located TDLAS and tunable-wavelength photothermal interferometry J. Corbin et al. 10.1080/02786826.2025.2469780
Latest update: 30 May 2025
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.
Extinction-minus-scattering is an important method for measuring aerosol light absorption, but...
