Preprints
https://doi.org/10.5194/gmd-2019-124
https://doi.org/10.5194/gmd-2019-124
Submitted as: model description paper
 | 
02 Jul 2019
Submitted as: model description paper |  | 02 Jul 2019
Status: this preprint was under review for the journal GMD. A final paper is not foreseen.

Bolchem: an On-Line Coupled Mesoscale Chemistry Model

Rita Cesari, Alberto Maurizi, Massimo D'Isidoro, Tony Christian Landi, Mihaela Mircea, Felicita Russo, Piero Malguzzi, and Francesco Tampieri

Abstract. This work presents the on-line coupled meteorology-chemistry transport model BOLCHEM based on the hydrostatic meteorological BOLAM model, the gas chemistry module SAPRC90 and the aerosol dynamic module AERO3. It includes parameterizations to describe natural source emissions, dry and wet removal processes, as well as the transport and dispersion of air pollutants. The equations for different processes are solved on the same grid during the same integretation step, by means of operator splitting method. The paper describes the model and shows the model performances at continental scale for oneyear run (December 2009–November 2010). The results show that BOLCHEM reproduces both O3 and PM10 at surface. For O3, we found the best agreement in the summer, with a correlation coefficient R of 0.7 and mean bias of 4.0. On the contrary, PM10 is better reproduced in the winter, with a correlation coefficient R of 0.6 and the mean bias MB of 6.7.

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Rita Cesari, Alberto Maurizi, Massimo D'Isidoro, Tony Christian Landi, Mihaela Mircea, Felicita Russo, Piero Malguzzi, and Francesco Tampieri

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Rita Cesari, Alberto Maurizi, Massimo D'Isidoro, Tony Christian Landi, Mihaela Mircea, Felicita Russo, Piero Malguzzi, and Francesco Tampieri
Rita Cesari, Alberto Maurizi, Massimo D'Isidoro, Tony Christian Landi, Mihaela Mircea, Felicita Russo, Piero Malguzzi, and Francesco Tampieri

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Short summary
This work presents the on-line coupled meteorology-chemistry transport model BOLCHEM. The paper describes the meteorological and chemical modules, and presents simulation results on the European domain for one year run. For all considered pollutants (O3, NO2, PM10, PM2.5) the model performances are close to those achieved by the current state-of-the-art model system dedicated to air quality study, e.g. Copernicus CAMS products.