Empirical modelling and mapping of water quality parameters in a subtropical lagoon using remote sensing data (original) (raw)

2020

Abstract

Degradation of water quality in water bodies, usually, occurs because of anthropogenic actions, that is, due to occupation and use of their margins, as well as for natural factors. Considering those aspects, remote sensing has becoming an alternative to help monitoring big water bodies, such as the Mirim Lagoon. Located in the extreme Southern of the Rio Grande do Sul state, Brazil, the lagoon has a great importance in economic, social, and environmental aspects of that region. Although, nowadays excess of nutrients and of suspended solids has been putting at risk the quality of its water. Therefore, the aim of this study was to develop empirical models and mapping water quality parameters in the Northern Mirim Lagoon, using data from the MSI/Sentinel-2 sensor. Optically active components, such as suspended solids, are used as indicators of water quality during the characterization of the aquatic environment, making it possible to infer about water composition, since the intensity o...

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