Satellite Image Processing and Mathematical Modeling of the Growth of Cyanobacteria to Determine the Level of Environmental Contamination in the Tiete River Beach

摘要

In this study satellite images obtained from LANDSAT (series 5 and 7) were used to obtain a correlation between the level of contamination in the Tiete river beach near the city of Lins, Sao Paulo (Brazil). Using data from samples taken in the river, geo-referenced, a mathematical model of the growth of cyanobacteria was created to understand the ecosystem. With GPS coordinates and processing of LANDSAT images, a correlation at the pixel level with de cyanobacteria level at the same location could be calculated. With the mathematical model, the population of cyanobacteria can be determined (with a specific statistic error) and verified with the satellite images. The correlation method of pixels could be used, with images of LANDSAT to determine the contamination of cyanobacteria in the beach environment.