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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/acp-2017-139
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
15 Mar 2017
Review status
This discussion paper is under review for the journal Atmospheric Chemistry and Physics (ACP).
Changes in the domestic heating fuel in Greece: effects on atmospheric chemistry and radiation
Eleni Athanasopoulou1, Orestis Speyer1, Dominik Brunner2, Heike Vogel3, Bernhard Vogel3, Nikolaos Mihalopoulos1,4, and Evangelos Gerasopoulos1 1Institute of Environmental Research and Sustainable Development, National Observatory of Athens (IERSD/NOA), GR 152 36, Athens, Greece
2Laboratory for Air Pollution/Environmental Technology (EMPA) , CH-8600 Dübendorf, Switzerland
3Karlsruhe Institute of Technology (KIT) , 76344 Eggenstein-Leopoldshafen, Germany
4Environmental Chemistry Processes Laboratory, Department of Chemistry, University of Crete, Heraklion, P.O. Box 2208, 71003 Greece
Abstract. For the past 8 years, Greece has been experiencing a major financial crisis which, among other side effects, led to a shift in the fuel used for residential heating from fossil fuel towards bio-fuels, primarily wood. This study simulates the fate of the residential wood burning aerosol plume (RWB smog) and implications on atmospheric chemistry and radiation, with the support of detailed aerosol characterization from measurements during the winter 2013–2014 in Athens. The applied model system (TNO-MACC_II emissions/COSMO-ART model) and configuration used, accurately predicts the frequent nighttime aerosol spikes (hourly PM10 > 75 μg m−3) and their chemical profile (carbonaceous components and ratios). Updated temporal and chemical RWB emission profiles, derived from measurements, were used, while the level of model performance was tested for different heating demand conditions, resulting to better agreement with measurements for Tmin < 9 °C. Half of the aerosol mass over the Athens basin is organic in the submicron range, 80 % of which corresponds to RWB (average values during the smog period). Although organic particles are important light scatterers, the direct radiative cooling of the aerosol plume during the wintertime is found low (monthly average forcing of −0.4 W m−2 at the surface). This is attributed to the timing of the smog plume, both directly – important interactions with the long-wave radiation during the nighttime emission – and indirectly, i.e. the mild effect of the residual plume on solar radiation during next day, due to the removal and dispersion processes.

Citation: Athanasopoulou, E., Speyer, O., Brunner, D., Vogel, H., Vogel, B., Mihalopoulos, N., and Gerasopoulos, E.: Changes in the domestic heating fuel in Greece: effects on atmospheric chemistry and radiation, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-139, in review, 2017.
Eleni Athanasopoulou et al.
Eleni Athanasopoulou et al.
Eleni Athanasopoulou et al.

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Short summary
The motivation for this work was the impact of residential wood burning in aerosol levels, composition and radiation, under the ongoing economic crisis in Greece. The atmospheric model COSMO-ART performed a series of runs during winter 2013–'14. Emission inputs were revised, according to the detailed aerosol characterization by local measurements. Although aerosol levels are found high and mostly composed by organics, the direct radiative cooling of the aerosol plume is found unimportant.
The motivation for this work was the impact of residential wood burning in aerosol levels,...
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