%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.15.35.41
%2 sid.inpe.br/marte2/2017/10.27.15.35.42
%@isbn 978-85-17-00088-1
%F 61627
%T Geotecnologias aplicadas na atualização de dados cartográficos
%D 2017
%A Coutinho, Luciano Melo,
%@electronicmailaddress lcncoutinho@hotmail.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 5904-5911
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X Modifications of the terrestrial surface, whether natural or anthropic, refer to the need for periodic updates and corrections of charts and maps. With the evolution of the resources and methods of digital mapping such procedures are performed with agility and precision, giving cartographic reliability to the representation data. Hydrographic net mappings can be performed by manual (vectorization) or automatic methods (mathematical algorithms), being the last of best applicability for studies of large areas. This work carried out the updating of stretches of the hydrographic net of the Municipality of Cachoeiro de Itapemirim (ES). The methodology consisted of the creation of a database in software environment of the category of Geographic Information System (GIS), composed by digital cartography (hydrography and altimetry), aerial photos and orbital images of high spatial resolution. Hydrographic net of different sources were compared, being: (1) original topographic map, (2) extracted from Digital Elevation Model and (3) vectoring of aerial photographs. The topographic map is outdated due to the time and methods of preparation, which caused errors in the allocation of hydrography extracted from the MDE. The vectorization data presented the best results due to compliance with surface occurrences. As final product was generated an updated hydrography net composed of 171 channels distributed by 534.27 linear kilometers.
%9 Cartografia e fotogrametria
%@language pt
%3 61627.pdf