Accuracy analysis between MDEs: AW3D, SRTM-30m and Project SPMGGO50

Authors

  • Antonio Santiago da Silva Federal University of Uberlândia
  • Oberdan Rafael Pugoni Lopes Santiago Federal University of Uberlândia
  • Claudionor Ribeiro da Silva Federal University of Uberlândia - MG

DOI:

https://doi.org/10.5433/2447-1747.2018v27n2p87

Keywords:

PEC-PCD, SRTM, AW3D, Project SPMGGO, Accuracy, DME.

Abstract

Since the emergence and availability of a worldwide and free base of Digital Elevation Models (DEM), there was a significant increase of works for the accomplishment of the Earth surface modeling. However, the quality of the products generated from these data and the appropriate scales of use still lack more detailed studies. This work aims at analyzing the altimetric precision of data AW3D, SRTM and the IBGE's SPGEGGO50 Project in the Ribeirão São Domingos Hydrographical Basin (BHSD), in Catalão, Goiás, evaluating the adequacy of these data at 1:50,000, 1:100,000 and 1:250,000 scales, observing the methodology suggested for the Cartographic Accuracy Standard for Digital Cartographic Products (PEC-PCD). 44 points of control/validation were collected in field to the assessing of the models. For this purpose, the vertical tolerance and the mean square Error of the models in relation to the validation points were calculated. The SRTM and AW3D sensors and Project SPMGGO50 reached category "B" to the 1:100,000 and 1:250,000 scales.

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Author Biographies

Antonio Santiago da Silva, Federal University of Uberlândia

Master's Degree in Geography, Federal University of Uberlândia. He is currently a laboratory technician and designer of the Federal University of Uberlândia.

Oberdan Rafael Pugoni Lopes Santiago, Federal University of Uberlândia

Master's Degree in Geography, Federal University of Uberlândia, Graduate Program in Geography. Environmental manager of the Forestry Engineering specialization, of the State Secretariat of Environment and Sustainable Development - MG.

Claudionor Ribeiro da Silva, Federal University of Uberlândia - MG

PhD in Geodetic Sciences at the Federal University of Paraná. Post-Doctorate at the University of Porto / PT. Associate Professor at the Federal University of Uberlândia - MG (2011 - current).

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Published

2018-08-10

How to Cite

Santiago da Silva, A., Rafael Pugoni Lopes Santiago, O., & Ribeiro da Silva, C. (2018). Accuracy analysis between MDEs: AW3D, SRTM-30m and Project SPMGGO50. Geografia (Londrina), 27(2), 87–98. https://doi.org/10.5433/2447-1747.2018v27n2p87

Issue

Vol. 27 No. 2 (2018)

Section

Articles

License

Copyright (c) 2018 GEOGRAFIA (Londrina)

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