Shortwave radiative impact of liquid–liquid phase separation in brown carbon aerosols

Fard, Mehrnoush M.; Krieger, Ulrich K.; Peter, Thomas

doi:https://doi.org/10.5194/acp-18-13511-2018

Articles | Volume 18, issue 18

https://doi.org/10.5194/acp-18-13511-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-13511-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 18

Research article

|

24 Sep 2018

Research article |

| 24 Sep 2018

Shortwave radiative impact of liquid–liquid phase separation in brown carbon aerosols

Mehrnoush M. Fard, Ulrich K. Krieger, and Thomas Peter

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Final revised paper (published on 24 Sep 2018)
Preprint (discussion started on 26 Mar 2018)

Interactive discussion

Status: closed

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

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RC1: 'Referee comments', Anonymous Referee #1, 25 Apr 2018
- AC1: 'Reply to Reviewer 1', Ulrich Krieger, 08 Aug 2018
RC2: 'Review Fard et al.', Anonymous Referee #2, 25 Apr 2018
- AC2: 'Reply to reviewer 2', Ulrich Krieger, 08 Aug 2018

Peer-review completion

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

AR by Ulrich Krieger on behalf of the Authors (08 Aug 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (09 Aug 2018) by Sergey A. Nizkorodov

RR by Anonymous Referee #2 (27 Aug 2018)

ED: Publish subject to technical corrections (30 Aug 2018) by Sergey A. Nizkorodov

AR by Ulrich Krieger on behalf of the Authors (07 Sep 2018) Author's response Manuscript

Short summary

Atmospheric aerosol particles may undergo liquid–liquid phase separation (LLPS) when exposed to varying relative humidity, with an aqueous organic phase enclosing an aqueous inorganic phase below a threshold of relative humidity. Brown carbon (BrC) compounds will redistribute to the organic phase upon LLPS. We use numerical modeling to study the shortwave radiative impact of LLPS containing BrC and conclude that it is not significant for atmospheric aerosol.