2010
DOI: 10.1590/s1982-21702010000300001
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Integração de informações do SGB em um SIG, visando a realização do sistema vertical do SIRGAS

Abstract: Atualmente existem diversos problemas com relação à obtenção de uma Rede Vertical Fundamental Brasileira (RVFB) consistente com um Sistema Global de Altitudes (SGA). Estas dificuldades são provenientes de diversos fatores, tais como: a integração e tratamento inicial de dados; definição de nós, linhas e circuitos de nivelamento necessários para o cálculo dos desníveis, visto que esta etapa é ainda realizada de forma manual; falta de informação gravimétrica associada ao nivelamento; inconsistências na definição… Show more

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Cited by 2 publications
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“…Luz (2004) investigated the possibility of using gravimetric data to define the physical heights in Brazil and to connect them with the South American Height Systems associated with SIRGAS. To contribute with the integration of the Brazilian vertical network into the global height system, Palmeiro and Freitas (2010) developed a methodology to measure/ determine the physical heights by computing the geopotential numbers using the Geographical Information System to integrate the BGS information. Severo et al (2013) determined and evaluated the corrections of different physical heights (dynamics, normal and orthometric) in a leveling belonging to HPAN, located in the northeastern Rio Grande do Sul.…”
Section: Introductionmentioning
confidence: 99%
“…Luz (2004) investigated the possibility of using gravimetric data to define the physical heights in Brazil and to connect them with the South American Height Systems associated with SIRGAS. To contribute with the integration of the Brazilian vertical network into the global height system, Palmeiro and Freitas (2010) developed a methodology to measure/ determine the physical heights by computing the geopotential numbers using the Geographical Information System to integrate the BGS information. Severo et al (2013) determined and evaluated the corrections of different physical heights (dynamics, normal and orthometric) in a leveling belonging to HPAN, located in the northeastern Rio Grande do Sul.…”
Section: Introductionmentioning
confidence: 99%