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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 16, issue 3
Atmos. Chem. Phys., 16, 1459–1477, 2016
https://doi.org/10.5194/acp-16-1459-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 16, 1459–1477, 2016
https://doi.org/10.5194/acp-16-1459-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 09 Feb 2016

Research article | 09 Feb 2016

Sensitivity of nitrate aerosols to ammonia emissions and to nitrate chemistry: implications for present and future nitrate optical depth

F. Paulot et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (19 Jan 2016)  Author's response    Manuscript
ED: Publish as is (20 Jan 2016) by Barbara Ervens
AR by Fabien Paulot on behalf of the Authors (22 Jan 2016)  Author's response
Publications Copernicus
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Short summary
We characterize the sensitivity of NO3 optical depth (OD) to both the sources of its precursors (NH3 and HNO3) and to its surface sinks. Uncertainties in the heterogeneous chemistry of HNO3 and the near-surface volatilization of NH4NO3 can cause up to 25 % difference in the global NO3 OD. Simulated NO3 OD increases little (< 30 %) in response to changes in emissions (2010 to 2050). Better constraints on the tropical flux of NH3 into the free troposphere are needed to improve estimates of NO3 OD.
We characterize the sensitivity of NO3 optical depth (OD) to both the sources of its precursors...
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