%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.16.21.58
%2 sid.inpe.br/marte2/2017/10.27.16.21.59
%@isbn 978-85-17-00088-1
%F 60219
%T Análise espaço-temporal da expansão da área urbanizada da sede do município de Alegre (ES)
%D 2017
%A Moreira, Julio Almeida,
%A Falqueto, Michael Oliveira,
%A Fortes, Paulo de Tarso Ferro Oliveira,
%@electronicmailaddress julioalmeida9612@gmail.com
%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 7428-7435
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X The city of Alegre has an area of 772,000 km², being the third largest of the mesoregion of the Espírito Santo Southern. Its urban structure has undergone great changes: the green areas have been replaced by buildings, houses, roads and other infrastructures that provide the development of the region. The objective of this work is to analyze the temporal evolution of the urbanized area of Alegre city, between the years of 1821 and 2016. The study relied on the use of maps, aerial photos and satellite images of Landsat TM 5 and Landsat OLI 8 from different epochs. The methodology was developed in three stages: Preprocessing, image information acquisition through visual interpretation and unsupervised classification using the Isoseg algorithm performed in the SPRING 5.4.1 and ArcGis 10.3 software, and, finally the spatio-temporal delimitation of the urban evolution of the area, creating polygons to calculate the urbanized area in each year of study. The results of the visual interpretation showed that there was an expansion of 191.35 ha of the urbanized area in the period from 1821 to 2016, occurring in a diffuse way, without following a preferential direction. The unsupervised classification was carried out on satellite images between 1988 and 2016, indicating an increase of 57.54 ha of urbanized area, different from that obtained through visual interpretation, which was 82.07 ha. If compared, both techniques demonstrated a growth of the urban área, however, the unsupervised classification method using Isoseg proved to be inaccurate.
%9 Urbanização
%@language pt
%3 60219.pdf