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Estimating N2O5 uptake coefficients using ambient measurements of NO3, N2O5, ClNO2 and particle-phase nitrate

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Phillips,  G. J.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101313

Thieser,  J.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101302

Tang,  M. J.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons203115

Sobanski,  N.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101261

Schuster,  G.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Fachinger,  Johannes
Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Drewnick,  F.
Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons100858

Borrmann,  S.
Particle Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101104

Lelieveld,  J.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons100898

Crowley,  J. N.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Phillips, G. J., Thieser, J., Tang, M. J., Sobanski, N., Schuster, G., Fachinger, J., et al. (2016). Estimating N2O5 uptake coefficients using ambient measurements of NO3, N2O5, ClNO2 and particle-phase nitrate. Atmospheric Chemistry and Physics, 16(20), 13231-13249. doi:10.5194/acp-16-13231-2016.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-93A0-9
Abstract
We present an estimation of the uptake coefficient (gamma) and yield of nitryl chloride (ClNO2) (f) for the heterogeneous processing of dinitrogen pentoxide (N2O5) using simultaneous measurements of particle and trace gas composition at a semi-rural, non-coastal, mountain site in the summer of 2011. The yield of ClNO2 varied between (0.035 +/- 0.027) and (1.38 +/- 0.60) with a campaign average of (0.49 +/- 0.35). The large variability in f reflects the highly variable chloride content of particles at the site. Uptake coefficients were also highly variable with minimum, maximum and average values of 0.004, 0.11 and 0.028 +/- 0.029, respectively, with no significant correlation with particle composition, but a weak dependence on relative humidity. The uptake coefficients obtained are compared to existing parameterizations based on laboratory datasets and with other values obtained by analysis of field data.