Remote sensing of the chlorophyll-a based on OLI/Landsat-8 and MSI/Sentinel-2A (Barra Bonita reservoir, Brazil)

Autor(es)

Watanabe, Fernanda ^[1] ; Alcantara, Enner ^[2] ; Rodrigues, Thanan ^[1] ; Rotta, Luiz ^[1] ; Bernardo, Nariane ^[1] ; Imai, Nilton ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Dept Cartog, Rua Roberto Simonsen 305, BR-19060900 Presidente Pnidente, SP - Brazil

^[2] Sao Paulo State Univ, Dept Environm Engn, Rodovia Presidente Dutra, Km 137, 8, BR-12247004 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Anais da Academia Brasileira de Ciências; v. 90, n. 2, 1, p. 1987-2000, AUG 2018.
• Citações Web of Science: 4

Resumo

In this present research, we assessed the performance of band algorithms in estimating chlorophyll-a (Chl-a) concentration based on bands of two new sensors: Operational Land Imager onboancl Landsat-8 satellite (OLI/Landsat-8), and MultiSpectral Instrument onboard Sentinel-2A (MSI/Sentinel-2A). Band combinations designed for Thematic Mapper onboard Landsat-5 satellite (TM/Landsat-5) and MEdium Resolution Imaging Spectrometer onboard Envisat platform (MERIS/Envisat) were adapted for OLI/Landsat-8 and MSUSentinel-2A bands. Algorithms were calibrated using in situ measurements collected in three field campaigns carried out in different seasons. The study area was the Barra Bonita hydroelectric reservoir (BBHR), a highly productive aquatic system. With exception of the three-band algorithm, the algorithms were spectrally few affected by sensors changes. On the other hands, algorithm perfonnance has been hampered by the bio-optical difference in the reservoir sections, drought in 2014 and pigment packaging. (AU)

• Processo FAPESP: 12/19821-1 - Parametrização de modelo bio-óptico para o estudo da concentração de clorofila-A ao longo de reservatórios em cascata
• Beneficiário: Enner Herenio de Alcântara
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/09045-7 - Mapeamento de macrófitas submersas em reservatório baseado na teoria de transferência radiativa na coluna de água
• Beneficiário: Nilton Nobuhiro Imai
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/18525-8 - Inversão de modelo baseado na equação de transferência radiativa para estimar a concentração de clorofila-a em águas produtivas - reservatório de Barra Bonita, Rio Tietê, SP
• Beneficiário: Fernanda Sayuri Yoshino Watanabe
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado