@InProceedings{CarvalhoBaJoLoSiNo:2018:Ro0.Ga,
               author = "Carvalho, Lino Augusto Sander de and Barbosa, Cl{\'a}udio 
                         Clemente Faria and Jorge, Daniel Schaffer Ferreira and Lobo, 
                         Felipe de Lucia and Silva, Maria Paula and Novo, Evlyn M{\'a}rcia 
                         Le{\~a}o de Moraes",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Optical properties of fine sub-micron particles on Amazon 
                         Floodplain Lakes: The role of the 0.2-0.7 gap on total absorption 
                         and scattering coefficients",
            booktitle = "Proceedings...",
                 year = "2018",
         organization = "Ocean Optics Conference, 24.",
             keywords = "Amazon floodplain lake, optically active components, optically 
                         complex waters.",
             abstract = "The impact of sub-micron particles on total absorption and 
                         scattering coefficients has been investigated in different aquatic 
                         environments with results showing low impact. At the Amazon 
                         floodplain lakes, however, the choice of different pore size 
                         filters to separate dissolved and particulate matter can have a 
                         significant impact on both coefficients. In this study the role of 
                         the 0.2-0.7 gap was investigated in Amazon floodplain lakes. The 
                         first set of sampled lakes is located within the first and largest 
                         Sustainable Development Reserve in Brazil dedicated to the 
                         protection of the Amazonian floodplain, whist the remaining lakes 
                         are located in a human impacted region of the Amazon basin. 
                         Moreover, the lakes are also affected by the interplay of the 
                         Amazon and Tapajos rivers, what brings high variability to their 
                         optical properties. Measurements were taken with a 10 cm AC-S on 
                         deck, after filtration by a 0.2 and 0.7 micron filters. Laboratory 
                         spectrophotometry and Scanning Electron Microscopy (SEM) were also 
                         performed to validate ACS measurements and investigate the nature 
                         of sub-micron particles. Results show that the 0.2-0.7 gap can 
                         represent up to 40% of the particulate absorption coefficient 
                         depending on the lake hydrological characteristics and proximity 
                         to the Amazon and Tapajos rivers. The same impact was not observed 
                         in the scattering coefficient reaching only up to 10% of the total 
                         scattering coefficient. SEM also demonstrated that the 0.2-0.7 gap 
                         presented a significant load of inorganic material which indicates 
                         that the absorption coefficient is not only related to the organic 
                         fraction of the particulate.",
  conference-location = "Dubrovnik, Croacia",
      conference-year = "7-12 oct.",
                label = "lattes: 1596449770636962 2 CarvalhoBaJoLoSiNo:2018:Ro0.Ga",
             language = "en",
        urlaccessdate = "26 abr. 2024"
}