Articles | Volume 21, issue 20
Atmos. Chem. Phys., 21, 15901–15927, 2021
https://doi.org/10.5194/acp-21-15901-2021
Atmos. Chem. Phys., 21, 15901–15927, 2021
https://doi.org/10.5194/acp-21-15901-2021
Research article
26 Oct 2021
Research article | 26 Oct 2021

Exploring the sensitivity of atmospheric nitrate concentrations to nitric acid uptake rate using the Met Office's Unified Model

Anthony C. Jones et al.

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Cited articles

Ackermann, I. J., Hass, H., Memmesheimer, M., Ziegenbein, C., and Ebel, A.: The parameterization of the sulfate-nitrate ammonia aerosol system in the long-range transport model EURAD, Meteorol. Atmos. Phys., 57, 101–114, 1995. 
Ansari, A. S. and Pandis, S. N.: Response of inorganic PM to precursor concentrations, Environ. Sci. Technol., 32, 2706–2714, 1998. 
Atkinson, R.: Atmospheric Chemistry of VOCs and NOx, Atmos. Environ., 34, 2063–2101, https://doi.org/10.1016/S1352-2310(99)00460-4, 2000. 
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Short summary
Ammonium nitrate is hard to model because it forms and evaporates rapidly. One approach is to relate its equilibrium concentration to temperature, humidity, and the amount of nitric acid and ammonia gases. Using this approach, we limit the rate at which equilibrium is reached using various condensation rates in a climate model. We show that ammonium nitrate concentrations are highly sensitive to the condensation rate. Our results will help improve the representation of nitrate in climate models.
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