Articles | Volume 15, issue 12
Atmos. Meas. Tech., 15, 3805–3825, 2022
https://doi.org/10.5194/amt-15-3805-2022
Atmos. Meas. Tech., 15, 3805–3825, 2022
https://doi.org/10.5194/amt-15-3805-2022
Research article
27 Jun 2022
Research article | 27 Jun 2022

A dual-wavelength photothermal aerosol absorption monitor: design, calibration and performance

Luka Drinovec et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2022-21, Drinovec et al. 2022', Anonymous Referee #2, 09 Mar 2022
    • AC1: 'Reply on RC1', Luka Drinovec, 27 May 2022
  • RC2: 'Comment on amt-2022-21', Anonymous Referee #3, 15 Mar 2022
    • AC2: 'Reply on RC2', Luka Drinovec, 27 May 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Luka Drinovec on behalf of the Authors (27 May 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (30 May 2022) by Mingjin Tang
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Short summary
A new photothermal interferometer (PTAAM-2λ) for artefact-free determination of the aerosol absorption coefficient at two wavelengths is presented. The instrument is calibrated with NO2 and polydisperse nigrosin, resulting in very low uncertainties of the absorption coefficients: 4 % at 532 nm and 6 % at 1064 nm. The instrument’s performance makes the PTAAM-2λ a strong candidate for reference measurements of the aerosol absorption coefficient.