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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- Absorption instruments inter-comparison campaign at the Arctic Pallas station E. Asmi et al. 10.5194/amt-14-5397-2021
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- Characterisation of particle single-scattering albedo with a modified airborne dual-wavelength CAPS monitor C. Yu et al. 10.5194/amt-17-3419-2024
- Measurement report: Comparison of airborne, in situ measured, lidar-based, and modeled aerosol optical properties in the central European background – identifying sources of deviations S. Düsing et al. 10.5194/acp-21-16745-2021
- 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
- Self-calibrating aerosol absorption measurements using co-located TDLAS and tunable-wavelength photothermal interferometry J. Corbin et al. 10.1080/02786826.2025.2469780
- Validation of cantilever-enhanced photoacoustic particle-size-resolved light absorption measurement using nigrosin reference particles and Mie modelling J. Kuula et al. 10.5194/ar-3-1-2025
- Characterization of soot produced by the mini inverted soot generator with an atmospheric simulation chamber V. Vernocchi et al. 10.5194/amt-15-2159-2022
- A dual-wavelength photothermal aerosol absorption monitor: design, calibration and performance L. Drinovec et al. 10.5194/amt-15-3805-2022
- The Measurement of Atmospheric Black Carbon: A Review Z. Zhang et al. 10.3390/toxics11120975
- Equivalent radius of atmosphere aerosol in haze weather based on laser scattering G. Feng et al. 10.1364/AO.509518
- Crumpled few-layer graphene: Connection between morphology and optical properties S. Musikhin et al. 10.1016/j.carbon.2021.06.052
- Overview of methods to characterize the mass, size, and morphology of soot T. Sipkens et al. 10.1016/j.jaerosci.2023.106211
- Aerosol optical properties within the atmospheric boundary layer predicted from ground-based observations compared to Raman lidar retrievals during RITA-2021 X. Liu et al. 10.5194/acp-24-9597-2024
- 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
- Investigation of the morphology and optical properties of graphene oxide for online diagnostics H. Looi et al. 10.1016/j.jaerosci.2025.106637
Latest update: 08 Jul 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...
