Evaluation of altimetry from the COP-30 DEM in central-western Brazil
Article Sidebar
Main Article Content
Abstract
This study analyzes the Brazilian Cartographic Accuracy Standard for Digital Cartographic Products (PEC-PCD) of the digital elevation model (DEM) from Copernicus DEM program, denominated COP-30, with the ellipsoidal altitudes provided by 317 reference stations of the Brazilian Geodetic System located in federative units of Goiás and Distrito Federal (Brazil). The PEC-PCD defines error tolerances according to eight different scales (from 1:1000 to 1:250,000) and four quality classes (ranging from A to D). Considering class A, the DEM COP-30 meets the 1:50,000 scale and lower scales, while for class B, the DEM COP-30 meets the 1:25,000 scale and lower scales. DEM COP-30 presented lower values of root mean square error (RMSE=1.98 m), indicating that it presents higher accuracy compared to other global free DEM.
Downloads
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (see "The Effect of Open Access").
