Santos, Marcelo Soares TelesAmaro, Venerando EustáquioSouto, Michael Vandesteen Silva2020-12-212020-12-212011SANTOS, M. S. T.; AMARO, V. E.; SOUTO, M. V. S.. Metodologia geodésica para levantamento de linha de costa e modelagem digital de elevação de praias arenosas em estudo de precisão de geomorfologia e dinâmica costeira.. RBC. Revista Brasileira de Cartografia (Online), v. 63, p. 469-483, 2011. Disponível em: http://www.seer.ufu.br/index.php/revistabrasileiracartografia/article/view/43760. Acesso em: 11 dez. 2020.1808-0936https://repositorio.ufrn.br/handle/123456789/31093This paper presents a geodetic methodology developed for survey, generation and assessment of coastline (CL) and Digital Elevation Models (DEM) of sandy littoral and a case study in a barrier island system of sandy beaches and intermittent tidal channels of the Northern Coast of Rio Grande do Norte State, Northeast Brazil, environmentally sensitive and characterized by intense coastal erosion/accretion in oil activities. The methodology allowed thedetermination of CL and DEM from geodetic coordinates and orthometric heights with accuracy of a few centimeters regarding to the Brazilian Geodetic System (BGS), from positioning and leveling by GPS on relative way. The main features of the proposed method are the precision, the use of CL indicator specific for analysis of coastal dynamics and the use of geodetic references (geographic and altimetric), which are univocal, fixed and relatively stable over time. The applied methodology allows the repetition of surveys in same conditions of tide and with same geodetics references, what is a suitable way for multitemporal comparison of surveys conducted in space and time domain and of great potential in studies of precision coastal dynamics (sedimentary erosion/ accretion) analysisAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/Linha de CostaMDEMonitoramento CosteiroNordeste do Brasilarticle