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The role of aerosols in the formation of severe storms in the metropolitan region of São Paulo


In this project it is intended, by means of using numerical models, to study the effects related to the presence of aerosols, deriving from human activity, in the formation of severe storms during the periods of spring and summer in the MRSP. Emphasis will be given to the effects of these particles on the radiation and on their participation in the formation of cloud droplets, serving as nuclei of cloud condensation. The study will be carried out through interfaces developed for the coupled use of the RAMS atmospheric model, the TEB model, the CARMA model of the physics of aerosols and a Eulerian model of emission sources of aerosols of anthropogenic origin. The coupling of these models will permit the three-dimensional simulation of the distribution of the mass of the aerosols and the investigation of the interactions of these contaminants with the evolution of the atmospheric state on regional scale.We will use surface data obtained by the operational network of the Cetesb and data from remote sensing provided by meteorological radars and satellites for the validation of the proposed methodology. (AU)

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