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ACP | Articles | Volume 18, issue 11
Atmos. Chem. Phys., 18, 8203–8225, 2018
https://doi.org/10.5194/acp-18-8203-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: The community version of the Weather Research and Forecasting...

Atmos. Chem. Phys., 18, 8203–8225, 2018
https://doi.org/10.5194/acp-18-8203-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 13 Jun 2018

Research article | 13 Jun 2018

Top–down quantification of NOx emissions from traffic in an urban area using a high-resolution regional atmospheric chemistry model

Friderike Kuik et al.
Model code and software

A Description of the Advanced Research WRF Version 3 W. Skamarock, J. Klemp, J. Dudhia, D. Gill, D. Barker, M. Duda, X.-Y. Huang, W. Wang, and J. Powers, https://doi.org/10.5065/D68S4MVH

Evolution of ozone, particulates, and aerosol direct radiative forcing in the vicinity of Houston using a fully coupled meteorologychemistry-aerosol model J. D. Fast, W. I. Gustafson, R. C. Easter, R. A. Zaveri, J. C. Barnard, E. G. Chapman, G. A. Grell, and S. E. Peckham https://doi.org/10.1029/2005JD006721

Fully coupled "online" chemistry within the WRF model G. A. Grell, S. E. Peckham, R. Schmitz, S. A. Mckeen, G. Frost, W. C. Skamarock, and B. Eder https://doi.org/10.1016/j.atmosenv.2005.04.027

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Short summary
Modelled NOx concentrations are often underestimated compared to observations, and measurement studies show that reported NOx emissions in urban areas are often too low when the contribution from traffic is largest. This modelling study quantifies the underestimation of traffic NOx emissions in the Berlin–Brandenburg and finds that they are underestimated by ca. 50 % in the core urban area. More research is needed in order to more accurately understand real-world NOx emissions from traffic.
Modelled NOx concentrations are often underestimated compared to observations, and measurement...
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