The effect of rapid relative humidity changes on fast filter-based aerosol-particle light-absorption measurements: uncertainties and correction schemes

Düsing, Sebastian; Wehner, Birgit; Müller, Thomas; Stöcker, Almond; Wiedensohler, Alfred

doi:https://doi.org/10.5194/amt-12-5879-2019

Articles | Volume 12, issue 11

https://doi.org/10.5194/amt-12-5879-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-12-5879-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 11

Research article

|

08 Nov 2019

Research article |

| 08 Nov 2019

The effect of rapid relative humidity changes on fast filter-based aerosol-particle light-absorption measurements: uncertainties and correction schemes

Sebastian Düsing, Birgit Wehner, Thomas Müller, Almond Stöcker, and Alfred Wiedensohler

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Final revised paper (published on 08 Nov 2019)
Preprint (discussion started on 27 May 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'good intentions, poorly executed', Anonymous Referee #3, 23 Jun 2019
- AC1: 'Response to RC1 - referee #3', Sebastian Düsing, 20 Sep 2019
- AC3: 'Response to referee #1 - RC3', Sebastian Düsing, 20 Sep 2019
RC2: 'Interesting results', Anonymous Referee #4, 28 Jun 2019
- AC2: 'Response to referee #4 - RC2', Sebastian Düsing, 20 Sep 2019
- AC3: 'Response to referee #1 - RC3', Sebastian Düsing, 20 Sep 2019
RC3: 'Review of Duesing AMT 2019 Discussion paper', Anonymous Referee #1, 12 Jul 2019
- AC3: 'Response to referee #1 - RC3', Sebastian Düsing, 20 Sep 2019
AC4: 'Update', Sebastian Düsing, 20 Sep 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Sebastian Düsing on behalf of the Authors (20 Sep 2019) Author's response Manuscript

ED: Publish as is (25 Sep 2019) by Pierre Herckes

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Sebastian Düsing on behalf of the Authors (25 Oct 2019) Author's adjustment Manuscript

EA: Adjustments approved (28 Oct 2019) by Pierre Herckes

Short summary

This study examines the effect of changes in relative humidity on measurements made by two different filter-based absorption photometers. Different filter loads, loading materials, and filter types are considered. It was found that both instruments react opposingly and with different magnitudes. One of the devices showed a variation in the dependence on the loading material. For each of the two devices, a correction approach is provided. Recommendations based on the findings are given.