A numerical study of the transport and diffusion of coastal pollutants during the breeze cycle in the Island of Mallorca

Details A numerical study of the transport and diffusion of coastal pollutants during the breeze cycle in the Island of Mallorca A numerical study of the transport and diffusion of coastal pollutants during the breeze cycle in the Island of Mallorca

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996angeo..14..351r&link_type=abstract

Annales Geophysicae, vol. 14, Issue 3, pp.351-363

Physics

3

Scientific paper

An Eulerian study of the distribution over the Island of Mallorca of a non-reactive pollutant (SO2) emitted from an electric power plant operating at present on the north coast is performed using a meso- numerical model, paying particular attention to the diffusive physical mechanisms. The study is applied to the conditions of sea-land breeze development. This is a local circulation that dominates the flow during the summer and favours transporting pollutants from the coast toward the centre of the island. Results indicate that values of the ground-level concentration higher than 5 g/m3 are restricted over a limited and mountainous region during the whole diurnal cycle. However, when the simulation is carried out with the inclusion of a twin electric plant which may be built on the south coast, the affected area becomes larger, especially early in the morning, when air over the island is sinking as a consequence of the land breeze development. The inclusion of dry deposition in the simulations does not produce important changes in the spatial and temporal evolution of the ground-level concentration.

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