Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites

Detalhes bibliográficos
Autor(a) principal: Lacerda, Heitor Carvalho
Data de Publicação: 2021
Outros Autores: Leitão, Rodrigo, Nero, Marcelo Antônio, Temba, Plínio da Costa, Macedo, Diego Rodrigues
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Espinhaço
Texto Completo: https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/172
Resumo: Digital Elevation Models (DEM) make it possible to identify geomorphological results and model the dynamics of processes on the earth's surface. Identifying and analyzing the vertical accuracy of DEMs is relevant to understand the possibilities of using remote sensing products, which are periodically updated in different versions to improve quality. is research compared different DEM, such as NASADEM, TOPODATA, ASTER GDEM and ALOS AW3D30 in the Cerrado biome area, in the lower slopes. e analysis consisted of sampling 1002 homologous points from GNSS control points with high precision, and sampling in a vertical profile in 149 homologous points, towards the mouth-east direction of the Uberabinha river section. Statistical analyzes were performed using RMSE and Box-Plot and line graphs. e results showed that NASADEM was the most accurate vertically (RMSE 3.8) than the other DEMs, with TOPODATA being the least accurate DEM (RMSR 8.81). It was found that vertical accuracy is more related to the (re)processing of the analyzed DEMs than to the type of acquisition of information by sensors, such as the InSar method and photogrammetry
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spelling Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellitesAvaliação comparativa da precisão vertical de modelos digitais de elevação derivados de satélites globais gratuitosRMSENASADEMASTER GDEMALOS AW3D30TOPODATARMSENASADEMASTER GDEMALOS AW3D30TOPODATADigital Elevation Models (DEM) make it possible to identify geomorphological results and model the dynamics of processes on the earth's surface. Identifying and analyzing the vertical accuracy of DEMs is relevant to understand the possibilities of using remote sensing products, which are periodically updated in different versions to improve quality. is research compared different DEM, such as NASADEM, TOPODATA, ASTER GDEM and ALOS AW3D30 in the Cerrado biome area, in the lower slopes. e analysis consisted of sampling 1002 homologous points from GNSS control points with high precision, and sampling in a vertical profile in 149 homologous points, towards the mouth-east direction of the Uberabinha river section. Statistical analyzes were performed using RMSE and Box-Plot and line graphs. e results showed that NASADEM was the most accurate vertically (RMSE 3.8) than the other DEMs, with TOPODATA being the least accurate DEM (RMSR 8.81). It was found that vertical accuracy is more related to the (re)processing of the analyzed DEMs than to the type of acquisition of information by sensors, such as the InSar method and photogrammetryOs Modelos Digitais de Elevação (MDE) possibilitam identificar resultantes geomorfológicas e modelar a dinâmica dos processos da superfície terrestre. Identificar e analisar a precisão vertical dos MDE é pertinente para compreender as possibilidades de uso de produtos de sensoriamento remoto, os quais estão periodicamente se atualizando em diferentes versões para melhoria da qualidade. A presente pesquisa comparou diferentes MDE, como o NASADEM, TOPODATA, ASTER GDEM e ALOS AW3D30 em área do bioma Cerrado, no trecho inferior de vertentes. A análise consistiu em amostragem de 1002 pontos homólogos a partir de pontos de controle GNSS com alta precisão, e amostragem em um perfil vertical em 149 pontos homólogos, em direção foz-nascente do trecho do rio Uberabinha. As análises estatísticas realizadas foram a partir de RMSE e de gráficos Box-Plot e de linhas. Os resultados mostraram que o NASADEM foi o mais acurado verticalmente (RMSE 3,8) que os demais MDE, sendo o TOPODATA o MDE de menor precisão (RMSR 8,81). Constatou-se que precisão vertical está mais relacionada ao (re) processamento dos MDE analisados do que com o tipo de aquisição das informações pelos sensores, como o método InSar e fotogrametria.UFVJM2021-10-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo avaliado pelos Paresapplication/pdfhttps://revistas.ufvjm.edu.br/revista-espinhaco/article/view/17210.5281/zenodo.5095061Revista Espinhaço ; Revista Espinhaço #182317-0611reponame:Revista Espinhaçoinstname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)instacron:UFVJMporhttps://revistas.ufvjm.edu.br/revista-espinhaco/article/view/172/182Copyright (c) 2022 Revista Espinhaço https://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessLacerda, Heitor CarvalhoLeitão, RodrigoNero, Marcelo AntônioTemba, Plínio da CostaMacedo, Diego Rodrigues2022-07-22T18:48:53Zoai:ojs.pkp.sfu.ca:article/172Revistahttps://revistaespinhaco.com/index.php/revista/indexPUBhttps://revistas.ufvjm.edu.br/revista-espinhaco/oairevista.espinhaco@gmail.com || doug.sathler@gmail.com2317-06112317-0611opendoar:2022-07-22T18:48:53Revista Espinhaço - Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)false
dc.title.none.fl_str_mv Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
Avaliação comparativa da precisão vertical de modelos digitais de elevação derivados de satélites globais gratuitos
title Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
spellingShingle Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
Lacerda, Heitor Carvalho
RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
title_short Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
title_full Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
title_fullStr Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
title_full_unstemmed Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
title_sort Comparative evaluation of the vertical accuracy of digital elevation models derived from free global satellites
author Lacerda, Heitor Carvalho
author_facet Lacerda, Heitor Carvalho
Leitão, Rodrigo
Nero, Marcelo Antônio
Temba, Plínio da Costa
Macedo, Diego Rodrigues
author_role author
author2 Leitão, Rodrigo
Nero, Marcelo Antônio
Temba, Plínio da Costa
Macedo, Diego Rodrigues
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lacerda, Heitor Carvalho
Leitão, Rodrigo
Nero, Marcelo Antônio
Temba, Plínio da Costa
Macedo, Diego Rodrigues
dc.subject.por.fl_str_mv RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
topic RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
RMSE
NASADEM
ASTER GDEM
ALOS AW3D30
TOPODATA
description Digital Elevation Models (DEM) make it possible to identify geomorphological results and model the dynamics of processes on the earth's surface. Identifying and analyzing the vertical accuracy of DEMs is relevant to understand the possibilities of using remote sensing products, which are periodically updated in different versions to improve quality. is research compared different DEM, such as NASADEM, TOPODATA, ASTER GDEM and ALOS AW3D30 in the Cerrado biome area, in the lower slopes. e analysis consisted of sampling 1002 homologous points from GNSS control points with high precision, and sampling in a vertical profile in 149 homologous points, towards the mouth-east direction of the Uberabinha river section. Statistical analyzes were performed using RMSE and Box-Plot and line graphs. e results showed that NASADEM was the most accurate vertically (RMSE 3.8) than the other DEMs, with TOPODATA being the least accurate DEM (RMSR 8.81). It was found that vertical accuracy is more related to the (re)processing of the analyzed DEMs than to the type of acquisition of information by sensors, such as the InSar method and photogrammetry
publishDate 2021
dc.date.none.fl_str_mv 2021-10-11
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Artigo avaliado pelos Pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/172
10.5281/zenodo.5095061
url https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/172
identifier_str_mv 10.5281/zenodo.5095061
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/172/182
dc.rights.driver.fl_str_mv Copyright (c) 2022 Revista Espinhaço
https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Revista Espinhaço
https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UFVJM
publisher.none.fl_str_mv UFVJM
dc.source.none.fl_str_mv Revista Espinhaço ; Revista Espinhaço #18
2317-0611
reponame:Revista Espinhaço
instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron:UFVJM
instname_str Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron_str UFVJM
institution UFVJM
reponame_str Revista Espinhaço
collection Revista Espinhaço
repository.name.fl_str_mv Revista Espinhaço - Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
repository.mail.fl_str_mv revista.espinhaco@gmail.com || doug.sathler@gmail.com
_version_ 1798325375180210176

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