Articles | Volume 16, issue 3
https://doi.org/10.5194/acp-16-1459-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-1459-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
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
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
Program in Atmospheric and Oceanic Sciences, Princeton
University, New Jersey, USA
P. Ginoux
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
W. F. Cooke
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
L. J. Donner
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
S. Fan
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
M.-Y. Lin
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
Program in Atmospheric and Oceanic Sciences, Princeton
University, New Jersey, USA
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
Program in Atmospheric and Oceanic Sciences, Princeton
University, New Jersey, USA
V. Naik
UCAR, National Oceanic and
Atmospheric Administration, Princeton, New Jersey, USA
L. W. Horowitz
Geophysical Fluid Dynamics Laboratory, National Oceanic
and Atmospheric Administration, Princeton, New Jersey, USA
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Saved (preprint)
Latest update: 18 Apr 2024
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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