A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models

Detalhes bibliográficos
Autor(a) principal: Ferreira, Zuleide Alves
Data de Publicação: 2022
Outros Autores: Cabral, Pedro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/132462
Resumo: Ferreira, Z. A., & Cabral, P. (2022). A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models: A Case Study in the Balsas River Watershed, Brazil. ISPRS International Journal of Geo-Information, 11(2), 1-14. [106]. https://doi.org/10.3390/ijgi11020106 ------Funding: This study was supported by national funds through FCT (Fundação para a Ciência e a Tecnologia) under the project UIDB/04152/2020 (Centro de Investigação em Gestão de Informação (MagIC) and the Instituto Federal de Educação, Ciência e Tecnologia do Tocantins (Campus Palmas)).
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spelling A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation ModelsA Case Study in the Balsas River Watershed, BrazilDEMassessmentaltitudeALOS PALSARGMTED2010SRTMTopodataGeography, Planning and DevelopmentComputers in Earth SciencesEarth and Planetary Sciences (miscellaneous)SDG 15 - Life on LandFerreira, Z. A., & Cabral, P. (2022). A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models: A Case Study in the Balsas River Watershed, Brazil. ISPRS International Journal of Geo-Information, 11(2), 1-14. [106]. https://doi.org/10.3390/ijgi11020106 ------Funding: This study was supported by national funds through FCT (Fundação para a Ciência e a Tecnologia) under the project UIDB/04152/2020 (Centro de Investigação em Gestão de Informação (MagIC) and the Instituto Federal de Educação, Ciência e Tecnologia do Tocantins (Campus Palmas)).Digital elevation models (DEMs) provide important support to research since these data are freely available for almost all areas of the terrestrial surface. Thus, it is important to assess their accuracy for correct applicability regarding the correct use scale. Therefore, this paper aims to assess the vertical accuracy of ALOS PALSAR, GMTED2010, SRTM, and Topodata DEMs according to the Brazilian Cartographic Accuracy Standard through the official high accuracy network data of the Brazilian Geodetic System. This study also seeks to investigate whether the altimetric error is correlated with altitude and slope in the study area. Our results showed that the four assessed DEMs in this study demonstrated satisfactory accuracy to provide mappings in scales up to 1:100,000 because more than 90% of the extracted points presented altimetric errors of less than 25 m when compared with the reference points from the high accuracy network of the Brazilian Geodetic System. Regarding the altimetric error, we could not find a significant correlation with altitude or slope in the study area. In this sense, future DEMs assessments should be based on the investigation of other factors that may influence altimetric error.NOVA Information Management School (NOVA IMS)Information Management Research Center (MagIC) - NOVA Information Management SchoolRUNFerreira, Zuleide AlvesCabral, Pedro2022-02-07T23:23:38Z2022-02-022022-02-02T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://hdl.handle.net/10362/132462eng2220-9964PURE: 36645260https://doi.org/10.3390/ijgi11020106info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:11:04Zoai:run.unl.pt:10362/132462Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:47:27.779474Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
A Case Study in the Balsas River Watershed, Brazil
title A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
spellingShingle A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
Ferreira, Zuleide Alves
DEM
assessment
altitude
ALOS PALSAR
GMTED2010
SRTM
Topodata
Geography, Planning and Development
Computers in Earth Sciences
Earth and Planetary Sciences (miscellaneous)
SDG 15 - Life on Land
title_short A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
title_full A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
title_fullStr A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
title_full_unstemmed A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
title_sort A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models
author Ferreira, Zuleide Alves
author_facet Ferreira, Zuleide Alves
Cabral, Pedro
author_role author
author2 Cabral, Pedro
author2_role author
dc.contributor.none.fl_str_mv NOVA Information Management School (NOVA IMS)
Information Management Research Center (MagIC) - NOVA Information Management School
RUN
dc.contributor.author.fl_str_mv Ferreira, Zuleide Alves
Cabral, Pedro
dc.subject.por.fl_str_mv DEM
assessment
altitude
ALOS PALSAR
GMTED2010
SRTM
Topodata
Geography, Planning and Development
Computers in Earth Sciences
Earth and Planetary Sciences (miscellaneous)
SDG 15 - Life on Land
topic DEM
assessment
altitude
ALOS PALSAR
GMTED2010
SRTM
Topodata
Geography, Planning and Development
Computers in Earth Sciences
Earth and Planetary Sciences (miscellaneous)
SDG 15 - Life on Land
description Ferreira, Z. A., & Cabral, P. (2022). A Comparative Study about Vertical Accuracy of Four Freely Available Digital Elevation Models: A Case Study in the Balsas River Watershed, Brazil. ISPRS International Journal of Geo-Information, 11(2), 1-14. [106]. https://doi.org/10.3390/ijgi11020106 ------Funding: This study was supported by national funds through FCT (Fundação para a Ciência e a Tecnologia) under the project UIDB/04152/2020 (Centro de Investigação em Gestão de Informação (MagIC) and the Instituto Federal de Educação, Ciência e Tecnologia do Tocantins (Campus Palmas)).
publishDate 2022
dc.date.none.fl_str_mv 2022-02-07T23:23:38Z
2022-02-02
2022-02-02T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/132462
url http://hdl.handle.net/10362/132462
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2220-9964
PURE: 36645260
https://doi.org/10.3390/ijgi11020106
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14
application/pdf
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instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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