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2017 | 26 | 3 |

Tytuł artykułu

Ammonia concentrations over Europe – application of the WRF-Chem model supported with dynamic emission

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Our study focuses on the application of a static and dynamic ammonia emissions based on a Europe-wide default setting into the weather research and forecasting chemistry model (WRF-Chem), and the influence on the simulated ammonia concentrations and overall model performance. The WRF-Chem model was run twice for all of Europe at a spatial resolution of 36 x 36 km for the year 2012. In the first simulation we used a static emissions approach (the “BASE” simulation) and in the second simulation we used dynamic ammonia emissions (the “DYNAMIC” simulation). Both simulations underestimate measured concentrations of NH₃ for all seasons, have similar NMGE (about 0.7 μg m⁻³), and model hourly ammonia peaks that shift toward the afternoon hours if compared with measurements. However, for all temporal resolutions, normalised mean gross error in winter and summer is lower for DYNAMIC than for BASE. The DYNAMIC simulation also generally gives worse performance in spring for each temporal resolution. For further improvement of the modelled ammonia concentrations with WRF-Chem we suggest using a nested approach with higher spatial resolution, which will lead to better separation of the ammonia source regions from surrounding areas and take into account national practices and regulations in the emissions model, eventually only in the nested model domain.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

26

Numer

3

Opis fizyczny

p.1323-1341,fig.,ref.

Twórcy

autor
  • Department of Climatology and Atmosphere Protection, University of Wroclaw, Wroclaw, Poland
autor
  • Department of Climatology and Atmosphere Protection, University of Wroclaw, Wroclaw, Poland
autor
  • Department of Environmental Science, Aarhus University, Roskilde, Denmark
autor
  • Department of Environmental Science, Aarhus University, Roskilde, Denmark
autor
  • Institute of Science and the Environment, University of Worcester, Worcester, United Kingdom

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