Articles | Volume 12, issue 8
https://doi.org/10.5194/gmd-12-3357-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-12-3357-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
01 Aug 2019
Model description paper |
| 01 Aug 2019
| 01 Aug 2019
The Eulerian urban dispersion model EPISODE – Part 2: Extensions to the source dispersion and photochemistry for EPISODE–CityChem v1.2 and its application to the city of Hamburg
Chemistry Transport Modelling, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
Sam-Erik Walker
Norwegian Institute for Air Research (NILU), Kjeller, Norway
Sverre Solberg
Norwegian Institute for Air Research (NILU), Kjeller, Norway
Martin O. P. Ramacher
Chemistry Transport Modelling, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
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Latest update: 16 Aug 2025
Short summary
A large part of the population living in cities is exposed to ozone levels above the EU air quality target value. The CityChem extension of the urban air quality model EPISODE enables a detailed treatment of the atmospheric chemistry in urban areas and near-field dispersion close to industrial stacks and in street canyons. The application of the model in the city of Hamburg (Germany) shows good performance for ozone, nitrogen dioxide and particulate matter at air quality monitoring stations.
A large part of the population living in cities is exposed to ozone levels above the EU air...
