Interpretação dos gases traços medidos em São Paulo através das trajetórias de parcelas do ar

Abstract

Backward trajectories have been calculated from June to August, 1999, in São Paulo using a three dimensional kinematic trajectory model. The trajectories were obtained using the three .components of wind velocity (u, v, w) simulated by the Regional Atmospheric Modeling System Version 4.3-RAMS. Backward trajectories were classitied based on latitude and longitude trajectory at 12 h intervals (00 e 12 UTC) over four days. The robustness of the analysis was assessed using an ensemble of back trajectories calculated for tive points in the neighborhood of the Metropolitan Area do São Paulo