Articles | Volume 22, issue 20
Atmos. Chem. Phys., 22, 13607–13630, 2022
https://doi.org/10.5194/acp-22-13607-2022
Atmos. Chem. Phys., 22, 13607–13630, 2022
https://doi.org/10.5194/acp-22-13607-2022
Research article
20 Oct 2022
Research article | 20 Oct 2022

Chemical analysis of the Asian tropopause aerosol layer (ATAL) with emphasis on secondary aerosol particles using aircraft-based in situ aerosol mass spectrometry

Oliver Appel 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 acp-2022-92', Anonymous Referee #1, 07 Mar 2022
  • RC2: 'Comment on acp-2022-92', Anonymous Referee #2, 17 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Stephan Borrmann on behalf of the Authors (11 Aug 2022)  Author's response    Manuscript
ED: Publish as is (23 Aug 2022) by Jianzhong Ma
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Short summary
This paper clarifies the chemical composition of the Asian tropopause aerosol layer (ATAL) by means of airborne in situ aerosol mass spectrometry (AMS). Ammonium nitrate and organics are found to significantly contribute to the particle layer, while sulfate does not show a layered structure. An analysis of the single-particle mass spectra suggests that secondary particle formation and subsequent growth dominate the particle composition, rather than condensation on pre-existing primary particles.
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