Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Volume 13, issue 23
Atmos. Chem. Phys., 13, 11675–11693, 2013
https://doi.org/10.5194/acp-13-11675-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 13, 11675–11693, 2013
https://doi.org/10.5194/acp-13-11675-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 03 Dec 2013

Research article | 03 Dec 2013

Impact of emission changes on secondary inorganic aerosol episodes across Germany

S. Banzhaf1, M. Schaap2, R. J. Wichink Kruit2, H. A. C. Denier van der Gon2, R. Stern1, and P. J. H. Builtjes1,2 S. Banzhaf et al.
  • 1Institut für Meteorologie, Freie Universität Berlin, Carl-Heinrich-Becker Weg 6—10, 12165 Berlin, Germany
  • 2TNO, Department Climate, Air Quality and sustainability, Princetonlaan 6, 3508 TA Utrecht, the Netherlands

Abstract. In this study, the response of secondary inorganic aerosol (SIA) concentrations to changes in precursor emissions during high PM10 episodes over central Europe in spring 2009 was investigated with the Eulerian Chemistry Transport Model (CTM) REM-Calgrid (RCG). The model performed well in capturing the temporal variation of PM10 and SIA concentrations and was used to analyse the different origin, development and characteristics of the selected high PM10 episodes. SIA concentrations, which contribute to about 50% of the PM10 concentration in northwestern Europe, have been studied by means of several model runs for different emission scenarios. SO2, NOx and NH3 emissions have been varied within a domain covering Germany and within a domain covering Europe. It was confirmed that the response of sulfate, nitrate and ammonium concentrations and deposition fluxes of S and N to SO2, NOx and NH3 emission changes is non-linear. The deviation from linearity was found to be lower for total deposition fluxes of S and N than for SIA concentrations. Furthermore, the study has shown that incorporating explicit cloud chemistry in the model adds non-linear responses to the system. It significantly modifies the response of modelled SIA concentrations and S and N deposition fluxes to changes in precursor emissions. The analysis of emission reduction scenario runs demonstrates that next to European-wide emission reductions additional national NH3 measures in Germany are more effective in reducing SIA concentrations and deposition fluxes than additional national measures on SO2 and NOx.

Publications Copernicus
Download
Citation
Altmetrics
Final-revised paper
Preprint