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Description

The XIMERE/FUXIMERE system is a tool for prediction and early diagnosis of air quality in Galicia, through a exhaustive model (CHIMERE) coupled to the WRF meteorological model and fed by the EMIGAL emission model. The system is able to estimate the concentrations of primary and secondary pollutants with effects at regional level. Although its results are still experimental, following the model validation process, which will be posted on this website, its ultimate goal is to provide an operational forecasting of air quality in Galicia.

The air quality forecast is done at high resolution (9 km2) for the Galicia domain, with a time horizon of 48/72 h. As a novelty, in the system will be presented the results of the outputs depending on the model that initializes the WRF, GFS or HIRLAM (courtesy of AEMET, Spanish Meteorological Agency).

The forecasted pollutants are Sulfur Dioxide (SO2), Nitrogen Dioxide and Nitrogen Oxides (NO2/ NOX), Carbon Monoxide (CO), Particulate Matter PM10, Particulate Matter PM2,5 and Ozone (O3).

The results of the forecasts are provided in maps of mean and maximum concentrations and exceedances of the reference levels described in Royal Decree 102/2011 for sulfur dioxide, nitrogen dioxide, nitrogen oxides, particulate matter, carbon monoxide and ozone.

Both simulations, meteorology and air quality, and the post-processing of model outputs, are executed in parallel on the Presaxio Clusters of USC and troposphere, both financed by the Sectorial Program of Applied Research Program PEME I+D and I+D Suma 2010 of NATURAL ENVIRONMENT AND SUSTAINABLE DEVELOPMENT (MDS) of the Galician Government.

Finally, simulations are being subjected to a validation process with the object of knowing the deviations committed by the model. This process is done with the DELTA TOOL of the European Environment Agency (EEA).

To carry out this work, were chosen two domains for the forecasts using the following criteria:

  • Each domain was completely content in the corresponding meteorological grid.
  • The larger grid (D1) must have a sufficient size to represent the long-range transport of pollutants.
  • The smaller grid (D2) must contain the areas with the representative emission sources.

The main features of the domains are summarized in the following figure:





Tomorrow AQI

LocationINDEX
Ferrol57
A Coruña57
Santiago55
Ourense52
Lugo54
Vigo55
Pontevedra53

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