Abstract
This work uses the Weather Research and Forecasting (WRF) coupled to its chemical module to simulate the dispersion of pollutants emitted by satellite launch vehicle launched from Alcântara space center (CLA). To insert the chemistry data in the WRF was used the PREP-CHEM preprocessor. The simulations were done for 4 cases namely: cases of daytime and nighttime periods of dry and rainy seasons. They were identified regions affected by carbon monoxide (CO) emissions, as well as its trajectory depending on the winds. Among the regions hit the parking was the one with the largest concentrations of CO, followed by the meteorology building, Alcântara village and Tapireí village. Moreover, it was possible to verify how the CO dissipation occurs in the CLA region for each case. The dry period simulations day and night cases took 29 min and 1 h 12 min, respectively. For the simulations of the rainy season, it was 40 min (day case) and 1 h 30 min (nocturnal case). It was possible to identify the largest turbulent intensity of the daytime period, together with stronger winds, are responsible for a faster dissipation of the pollutant cloud.
Keywords:
air quality; VLS; dispersion time; carbon monoxide; atmospheric chemistry
