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The new Digital Terrain Model (DTM) of the Brazilian Continental Margin: detailed morphology and revised undersea feature names


This paper presents a new Digital Terrain Model (DTM) of the Brazilian Continental Margin and provides a description of the main morphologic undersea features with updated nomenclature. The improved Brazilian DTM was developed with an extensive and integrated bathymetric dataset, composed by various sources, which were verified and qualified. A cross-over error analysis between all bathymetric data was done and the final bathymetric grid was created from a minimum curvature interpolating surface with established 2500-m grid cell size. The new DTM supports the Brazilian Submission to the Commission on the Limits of the Continental Shelf (CLCS) according to the United Nations Convention on the Law of the Sea (UNCLOS 1983) and represents the official seabed morphology of the Brazilian Continental Margin and its undersea feature names.

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  1. Data from the SRTM30_PLUS (SRTM 2013) derived from the Shuttle Radar Topography Mission of NASA (National Aeronautics and Space Administration).


  • Alves EC (1977) Estrutura rasa do Talude e Sopé da Margem Continental do Rio Grande do Sul e Uruguai. Porto Alegre. Tese de Mestrado, Universidade Federal do Rio Grande do Sul . 74 p

  • Briggs IC (1974) Machine contouring using minimum curvature. Geophysics 39(1):39–48

    Article  Google Scholar 

  • Cherkis NZ, Bronzena JM, Fleming HS, Perry RK, Palma JJ (1988) The Bahia seamounts. Brasil Basin Journal of South America Earth Sciences 1(3):295–300

    Article  Google Scholar 

  • Damuth JE, Palma JJ (1979) Geomorfologia do Fundo Atlântico Equatorial Oeste. Reconhecimento Global da Margem Continental Brasileira Série Projeto REMAC Rio de Janeiro Petrobras v7: 53-88

  • França AMC (1979) Geomorfologia da margem continental leste brasileira e da bacia oceânica adjacente. Reconhecimento Global da Margem Continental Brasileira Série Projeto REMAC Rio de Janeiro Petrobras v7: 89-127

  • Gambôa LAP, Rabinowitz PD (1984) The evolution of the Rio Grande Rise in the Southwest Atlantic Ocean. Mar Geol 58:35–58

    Article  Google Scholar 

  • Gorini MA (1981) The tectonic fabric of the equatorial Atlantic and adjoining continental margins: Gulf of Guinea to northeastern Brazil. Reconhecimento Global da Margem Continental Brasileira Série Projeto REMAC. Rio de Janeiro. Petrobrasv.9:11-116

  • Gorini MA, Carvalho JC (1984) Geologia da margem continental inferior brasileira e do fundo oceânico adjacente. In: Schobbenhaus C, Campos DA, Derze GR, Asmus HE Geologia do Brasil: Texto explicativo do Mapa Geológico do Brasil e da área oceânica adjacente incluindo depósitos minerais – Escala 1:2500000. MME/DNPM. Brasília. 473-489

  • International Hydrographic Organization – IHO.. IHO standards for hydrographic surveys (2008) (S-44). 5°ed.

  • Reis AT, Silva CG, Gorini MA, Leão R, Pinto N, Perovano R, Santos MVM, Guerra JV, Jeck IK, Tavares AAA (2015) The Chuí Megaslide Complex: regional-scale submarine landslides on the southern Brazilian margin In: Lamarche G et al. (Eds.), Submarine mass movements and their consequences, Advances in Natural and Technological Hazards Research, v..41:115-123

  • Schreiner S, Souza MBFM, Migliorlli JPR (2009) Modelo digital da geomorfologia do fundo oceânico do centro-sul da Bacia do Espírito Santo e norte da Bacia de Campos. Boletim de geociências Petrobras Rio de Janeiro 17:365–369

    Google Scholar 

  • Silva SRP, Maciel RR, Severino MCG (1999) Cenozoic tectonics of Amazon Mouth Basin. Geo-Mar Lett 18:256–262

    Article  Google Scholar 

  • Sperle M, Mello SLM, Gomes LR (1991) Análise isostática na região dos Montes Submarinos de Pernambuco. In: Anais do II Cong Int Soc Bras Geof Salvador BA SBGf 2: 644-649.

  • Swain CJ (1976) A FORTRAN IV program for interpolating irregularly spaced data using the difference equations for minimum curvature. Computers & Geosciences. Pergamon Press 1:231–240

    Article  Google Scholar 

  • Torres LC, Jeck IK, Alberoni AAL, Villena HH (2008) Brazilian Southern Margin: an example of the identification of the base of the slope on a passive continental margin. 5th ABLOS Conference, Monaco Session 3:12 p

  • UNCLOS (1983) United Nations Convention on the Law of the Sea. United Nations, New York, 224p

  • Wessel P (1989) XOVER: a cross-over error detector for track data. Computers &Geosciences 15:333–346

    Article  Google Scholar 

  • Zembruscki SG (1979) Geomorfologia da margem continental sul brasileira e das bacias oceânicas adjacentes. Série Projeto REMAC. Rio de Janeiro. Petrobras7: 129-177

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Authors specially thank the Brazilian Continental Shelf Survey Program (LEPLAC) for permission to use all bathymetric dataset. We also thank the Directorate of Hydrography and Navigation (DHN); Petróleo Brasileiro S.A (PETROBRAS); Brazilian National Agency of Oil, Gas and Biocombustibles (ANP); and Geological Survey of Brazil (CPRM) for supplying single- and multi-beam bathymetric data, which improve considerably the Brazilian DTM quality.

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Correspondence to A. A. L. Alberoni.

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Alberoni, A.A.L., Jeck, I.K., Silva, C.G. et al. The new Digital Terrain Model (DTM) of the Brazilian Continental Margin: detailed morphology and revised undersea feature names. Geo-Mar Lett 40, 949–964 (2020).

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