%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.12.24
%2 sid.inpe.br/marte2/2017/10.27.12.24.05
%@isbn 978-85-17-00088-1
%F 59612
%T Índice de diferença normalizada da água (NDWI) para a obtenção da morfologia do canal de acesso e bacia de evolução portuária ? Porto de Niterói (RJ)
%D 2017
%A Pereira, Rodrigo da Silveira,
%A Souza, Aurélio da Silva de,
%A Santos, Paulo Roberto Alves dos,
%@electronicmailaddress rodrigo.s.pereira@ibge.gov.br
%E Gherardi, Douglas Francisco Marcolino,
%E Aragão, Luiz Eduardo Oliveira e Cruz de,
%B Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)
%C Santos
%8 28-31 maio 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 1700-1707
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X Access channels and port developments basins are areas highly modified by coastal and dredging activities. Thus, interventions in these areas require careful planning due to high operating costs and lack of previous data. In this case, we used remote sensing products from Landsat 8 satellite to obtain the normalized difference water index (NDWI) and compare it with official bathymetric data from nautical chart (Marinha do Brasil). The estimated bathymetry data from NDWI had low correlation with official bathymetry data. The comparision of the distributions of the bathymetric points obtained by interpolating the data of the nautical chart and obtained by NDWI indicated that the median values match each other. The application of the methodology in the Port of Niterói (RJ) was satisfactory in modelling of the bottom morphology, with the identification of the access channel and port development basin, according to the local environmental characteristics. The results indicate that the methodology is applicable to previous environmental studies and academic articles, due to the low cost and the agility, not recommended for use in navigation.
%9 Processamento de imagens
%@language pt
%3 59612.pdf