COMPARAÇÃO DAS IMAGENS LANDSAT 8 E SENTINEL 2 PARA O MONITORAMENTO DE RESERVATÓRIOS DE ABASTECIMENTO NO CERRADO BRASILEIRO

LandSat 8 and Sentinel 2 images comparison for the reservoirs supply monitoring in the Brazilian Cerrado

Authors

  • Carolina MELO Universidade Federal de Uberlândia, Faculdade de Engenharia Civil Programa de Pós-Graduação em em Engenharia Civil
  • Marcio Augusto Reolon SCHMIDT Universidade Federal de UberlândiaFaculdade de Engenharia Civil Programa de Pós-Graduação em Engenharia Civil http://orcid.org/0000-0003-2716-2360
  • Rodrigo Mikosz GONÇALVES Universidade Federal do Pernambuco, Departamento de Engenharia Cartográfica

DOI:

https://doi.org/10.5016/geociencias.v39i04.14693

Abstract

The use of satellite images as an environmental monitoring tool has many applications in different areas. However, a poorly explored area is the water resources monitoring due to the lack of parameters that correlate water quality and pixels values on the images. The objective of this research is to evaluate the use of LandSat 8 and Sentinel 2 images in the monitoring of Capim Branco Complex supply reservoirs in Uberlândia, MG. The spectral response changes in relation to turbidity and total solids were analyzed. The Sentinel 2 satellite MSI sensor images showed spectral precision compatible withLandSat 8, however, when all visible and near infrared spectrum bands were analyzed, it was verified that the LandSat 8 images have a greater ability to differentiate suspended elements in water. The results allowed establishing a correlation equation between the turbidity and the images bands for each reservoir.

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Published

2020-12-19

Issue

Vol. 39 No. 4 (2020)

Section

Artigos