Resumen

DE REDDER, KOEN et al. The impact of model resolution on simulated ambient air quality and associated human exposure. Atmósfera [online]. 2014, vol.27, n.4, pp.403-410. ISSN 0187-6236.

A simple numerical experiment to evaluate the influence of model resolution on estimates of ambient air quality and associated human exposure is presented. This is done based on annual mean NO₂ concentration fields for the agglomeration of Brussels and surroundings, simulated by the deterministic urban/regional-scale AURORA model at a resolution of 1 km. These NO₂ concentration fields were used to calculate domain-wide exposure, which is defined here as the population density-weighted concentration. It was found that exposure decreased by 38% when degrading the resolution of the model from 1 to 64 km. A straightforward analysis revealed that this exposure reduction could be explained by the covariance between the concentration and population density patterns.

Palabras llave : Air quality; human exposure; model resolution.

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