Articles | Volume 17, issue 20
https://doi.org/10.5194/gmd-17-7513-2024
https://doi.org/10.5194/gmd-17-7513-2024
Development and technical paper
 | 
29 Oct 2024
Development and technical paper |  | 29 Oct 2024

Challenges of high-fidelity air quality modeling in urban environments – PALM sensitivity study during stable conditions

Jaroslav Resler, Petra Bauerová, Michal Belda, Martin Bureš, Kryštof Eben, Vladimír Fuka, Jan Geletič, Radek Jareš, Jan Karel, Josef Keder, Pavel Krč, William Patiño, Jelena Radović, Hynek Řezníček, Matthias Sühring, Adriana Šindelářová, and Ondřej Vlček

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Cited articles

Ardeshiri, H., Cassiani, M., Park, S. Y., Stohl, A., Pisso, I., and Dinger, A. S.: On the convergence and capability of the large-eddy simulation of concentration fluctuations in passive plumes for a neutral boundary layer at infinite Reynolds number, Bound.-Lay. Meteorol., 176, 291–327, https://doi.org/10.1007/s10546-020-00537-6, 2020. a, b
Bauerová, P., Keder, J., Šindelářová, A., Vlček, O., Patiño, W., Resler, J., Krč, P., Geletič, J., Řezníček, H., Bureš, M., Eben, K., Belda, M., Radović, J., Fuka, V., Jareš, R., and Ezau, I.: Measurement report: TURBAN observation campaign combining street-level low-cost air quality sensors and meteorological profile measurements in Prague, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-1222, 2024a. a, b
Bauerová, P., Šindelářová, A., Keder, J., Vlček, O., Patiño, W., Resler, J., Krč, P., Řezníček, H., Geletič, J., Bureš, M., Eben, K., Belda, M., Radović, J., Fuka, V., Jareš, R., and Ezau, I.: TURDATA: a database of low-cost air quality and remote sensing measurements for the validation of micro-scale models in the real Prague urban environments (0.1), Zenodo [data set], https://doi.org/10.5281/zenodo.10655033, 2024b. a
Belda, M., Resler, J., Geletič, J., Krč, P., Maronga, B., Sühring, M., Kurppa, M., Kanani-Sühring, F., Fuka, V., Eben, K., Benešová, N., and Auvinen, M.: Sensitivity analysis of the PALM model system 6.0 in the urban environment, Geosci. Model Dev., 14, 4443–4464, https://doi.org/10.5194/gmd-14-4443-2021, 2021. a, b
Belda, M., Krč, P., Resler, J., Huszár, P., Benešová, N., Karlický, J., and Juruš, P.: FUME-dev/fume: Official 2.0 release (2.0), Zenodo [code], https://doi.org/10.5281/zenodo.10142912, 2023. a
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Detailed modeling of urban air quality in stable conditions is a challenge. We show the unprecedented sensitivity of a large eddy simulation (LES) model to meteorological boundary conditions and model parameters in an urban environment under stable conditions. We demonstrate the crucial role of boundary conditions for the comparability of results with observations. The study reveals a strong sensitivity of the results to model parameters and model numerical instabilities during such conditions.