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

Author(s)

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

Affiliation

^[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

• Document type: Journal article
• Source: Anais da Academia Brasileira de Ciências; v. 90, n. 2, 1, p. 1987-2000, AUG 2018.
• Web of Science Citations: 4

Abstract

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)

• FAPESP's process: 12/19821-1 - Bio-optical model parametrization to study the chlorophyll-A concentration along a cascade of reservoirs
• Grantee: Enner Herenio de Alcântara
• Support Opportunities: Regular Research Grants
• FAPESP's process: 13/09045-7 - Submersed aquatic vegetation - SAV mapping based on radiative transfer theory - RTT in water bodies
• Grantee: Nilton Nobuhiro Imai
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/18525-8 - Inversion model based on radiactive transfer equation for estimating the chlorophyll-a concentration in productive waters - Barra Bonita reservoir, Tietê River, SP
• Grantee: Fernanda Sayuri Yoshino Watanabe
• Support Opportunities: Scholarships in Brazil - Post-Doctoral