Influência do ENOS na variabilidade da concentração de ozônio estimada por satélite sobre uma metrópole na Amazônia

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This work aims to characterize the climatology of the vertical profile tropospheric ozone (O3), as well as assess the interannual and seasonal variation in surface ozone and altitude on the metropolitan region of Manaus, through the performance of inter-annual climatic phenomena. For this analysis, this research bases on historical series of thirteen years of estimating O3 from the orbital platform AQUA, contemplating the years of 2003 to 2015. The methodology applied is based on the selection of two years uncharacteristically contrasting. The years of 2008, whose persistence of negative SST anomaly lasted for six months, and 2015, which presented positive temperature anomalies for twelve consecutive months. Later, vertical and averages were calculated standard deviations for the rainy and dry quarters about the study area. For an analysis of particularly rainy or dry days, two case studies were carried out. The observations carried out by the environmental satellite AQUA indicate that there is an important connection between weather conditions and air pollution levels in the region. For the negative phase ENOS the mean concentration of O3 was below air quality thresholds established by CONAMA and WHO. On the other hand, when set the positive phase of ENSO, increased concentrations of tropospheric ozone, coinciding with the period of increased availability of solar radiation, low convective activity in the region and intense firing activity can become worrisome, because concentrations between 60-70 ppb are considered harmful to health of the population, according to the WHO guidelines.