The white-light humidified optical particle spectrometer (WHOPS) – a novel airborne system to characterize aerosol hygroscopicity

Rosati, B.; Wehrle, G.; Gysel, M.; Zieger, P.; Baltensperger, U.; Weingartner, E.

doi:https://doi.org/10.5194/amt-8-921-2015

Articles | Volume 8, issue 2

https://doi.org/10.5194/amt-8-921-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-921-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 2

Research article

|

25 Feb 2015

Research article |

| 25 Feb 2015

The white-light humidified optical particle spectrometer (WHOPS) – a novel airborne system to characterize aerosol hygroscopicity

B. Rosati, G. Wehrle, M. Gysel, P. Zieger, U. Baltensperger, and E. Weingartner

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Final revised paper (published on 25 Feb 2015)
Supplement to the final revised paper
Preprint (discussion started on 21 Jul 2014)

Interactive discussion

Status: closed

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

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- Supplement

RC C2352: 'Review of the manuscript “The white-light humidified optical particle spectrometer (WHOPS) – a novel airborne system to characterize aerosol hygroscopicity”, by Rosati et al.', Anonymous Referee #1, 25 Aug 2014
- AC C3671: 'Author Response to Referee #1', Bernadette Rosati, 10 Nov 2014
RC C2445: 'Referee comments to the manuscript by Rosati et al., The white-light humidified optical particle spectrometer (WHOPS) – a novel airborne system to characterize aerosol hygroscopicity.', Anonymous Referee #2, 02 Sep 2014
- AC C3672: 'Author Response to Referee #2', Bernadette Rosati, 10 Nov 2014

Short summary

Only few measurements focused on vertical profiles of aerosol hygroscopic and optical properties in airborne studies. For this purpose the white-light optical particle spectrometer (WHOPS) was developed. It allows a relatively fast measurement of the particles hygroscopicity, mixing state and index of refraction of particles in the optically relevant size range. This paper presents a detailed technical description and characterization of the WHOPS and first results from the field.