Prediction of source contributions to urban background PM<sub>10</sub> concentrations in European cities: a case study for an episode in December 2016 using EMEP/MSC-W rv4.15 and LOTOS-EUROS v2.0 – Part 1: The country contributions

Abstract

Published by Copernicus Publications on behalf of the European Geosciences Union. 1788M. Pommier et al.: Prediction of source contributions to PM 10 concentrations in European cities country contributor for primary (emitted) species (70 % is found for primary organic matter (POM) and 80 % for elemental carbon -EC) than for the inorganic secondary component of the aerosol (50 %), which is predictable due to the conceptual differences in the source attribution used by both models. The country contribution calculated by the scenario approach depends on the chemical regime, which largely impacts the secondary components, unlike the calculation using the labelling approach.Geosci. Model Dev.,

Prediction of source contributions to surface PM<sub>10</sub> concentrations in European cities: a case study for an episode in December 2016 using EMEP/MSC-W rv4.15 – Part.2 The local urban background contribution

“…The version rv4.15 has been described in Simpson et al 130 (2017) and references cited therein. The main updates are explained in the companion paper (Pommier et al, 2020).…”

“…The studied episode occurred from 01 to 09 December 2016 and the forecasts provided by the EMEP model cover Europe (30°N-76°N, 30°W-45°E) (Pommier et al, 2020). An initial spin-up of 10 days was conducted.…”

“…These predictions were driven by forecasted meteorological fields at 12UTC from the previous day, with a 3-hour resolution, calculated by the Integrated Forecasting System (IFS) of ECMWF. These forecasted meteorological fields correspond to the fields which were used in the online production for these dates and used in the companion paper (Pommier et al, 2020). The ECMWF forecasts https://doi.org/10.5194/gmd-2020-242 Preprint.…”

“…The predictions are done as a complement to the country source contribution calculations, providing information on the countries responsible of the same polluted events. These country contributions are described in a companion paper (Pommier et al, 2020). The calculations, presented in this study, separate the "Local" contribution (i.e.…”

“…For the simplicity of the reading, the EMEP/MSC-W model is hereafter referred to as EMEP model. This study has been focused on an event occurring in Europe between the 01 and 09 December as described in Pommier al. (2020).…”