Articles | Volume 13, issue 5
Atmos. Meas. Tech., 13, 2161–2167, 2020
https://doi.org/10.5194/amt-13-2161-2020
Atmos. Meas. Tech., 13, 2161–2167, 2020
https://doi.org/10.5194/amt-13-2161-2020

Research article 05 May 2020

Research article | 05 May 2020

The influence of the baseline drift on the resulting extinction values of a cavity attenuated phase shift-based extinction monitor (CAPS PMex)

Sascha Pfeifer et al.

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Interactive discussion

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Sascha Pfeifer on behalf of the Authors (28 Feb 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (03 Mar 2020) by Mingjin Tang
RR by Anonymous Referee #1 (03 Mar 2020)
RR by Anonymous Referee #4 (13 Mar 2020)
ED: Publish subject to minor revisions (review by editor) (16 Mar 2020) by Mingjin Tang
AR by Sascha Pfeifer on behalf of the Authors (02 Apr 2020)  Author's response    Manuscript
ED: Publish as is (07 Apr 2020) by Mingjin Tang
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Short summary
The effect of the baseline drift on the resulting extinction values of three CAPS PMex monitors with different wavelengths was analysed for an urban background station. A significant baseline drift was observed, which leads to characteristic measurement artefacts for particle extinction. Two alternative methods for recalculating the baseline are shown. With these methods the extinction artefacts are diminished and the effective scattering of the resulting extinction values is reduced.