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Sensitivity analysis of ozone long term simulations to grid resolution

pubblicazioni - Articolo

Sensitivity analysis of ozone long term simulations to grid resolution

In the frame of the CityDelta European modelling inter-comparison, three different atmospheric chemistry-transport models have been applied over the Milan area for a six month summer simulations. To better evaluate models reliability and cleverness in simulating the long-term dynamics of pollutants in the atmosphere, a comprehensive sensitivity analysis with regard to both model configuration and input data has been carried out. This work deals particularly with the evaluation of the horizontal grid resolution influence (varying from 5 to 10 km). Results show that, in a flat area, ozone concentrations are quite insensitive to grid resolution as for mean values, while some extreme values statistics are more sensible to horizontal model resolution. Nitrogen dioxide seems to be more sensitive than ozone, as it is more linked to emission spatial resolution. PUBBLICATO A5033205 (PAD – 677024)PUBBLICATO A5033205 (PAD – 677024)

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