High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica

Detalhes bibliográficos
Autor(a) principal: Schünemann, Adriano L.
Data de Publicação: 2018
Outros Autores: Almeida, Pedro Henrique A., Thomazini, André, Fernandes Filho, Elpídio I., Francelino, Márcio R., Schaefer, Carlos E. G. R., Pereira, Antônio Batista
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1590/0001-3765201820170296
http://www.locus.ufv.br/handle/123456789/24339
Resumo: High resolution topography (HRT) surveys is an important tool to model landscapes, especially in zones subjected to strong environmental changes, such as Antarctica, where landform is highly influenced by cryoclasty and permafrost melting. The aim of this work was to obtain a high accurate DTM for Keller Peninsula, Maritime Antarctica. The survey study was assessed in the 2014/2015 and 2015/2016 during the austral summer, by using Terrestrial Laser Scanner (TLS). In order to cover 8 km2 of the Peninsula, the TLS equipment was installed in 81 different points. Results of the DTM generated by TLS (hereafter, HRT-DTM), and the terrain variables Aspect, Slope and Hillshade obtained were compared with previous models generated by aerophotographic survA data de publicaçãoey (hereafter, APG-DTM). RMSE for the HRT and APG-DTM were 0.726 and 2.397 m, respectively. Spatial resolution of the DTMs was 0.20 m. Morphometric variables obtained from the two methods presented visual differences on the thematic maps, especially related to the Aspect. Generalization was the main process, whereas interpolation occurred for the HRT survey, being the process of choice for the APG method. A large number of points are obtained by the TLS, providing a dense cloud of points, spatially well-distributed, enabling the generalization process to obtain surface models with high performance.
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spelling High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime AntarcticaTerrestrial laser scannerRemote sensingGeomorphologyAntarcticHigh resolution topography (HRT) surveys is an important tool to model landscapes, especially in zones subjected to strong environmental changes, such as Antarctica, where landform is highly influenced by cryoclasty and permafrost melting. The aim of this work was to obtain a high accurate DTM for Keller Peninsula, Maritime Antarctica. The survey study was assessed in the 2014/2015 and 2015/2016 during the austral summer, by using Terrestrial Laser Scanner (TLS). In order to cover 8 km2 of the Peninsula, the TLS equipment was installed in 81 different points. Results of the DTM generated by TLS (hereafter, HRT-DTM), and the terrain variables Aspect, Slope and Hillshade obtained were compared with previous models generated by aerophotographic survA data de publicaçãoey (hereafter, APG-DTM). RMSE for the HRT and APG-DTM were 0.726 and 2.397 m, respectively. Spatial resolution of the DTMs was 0.20 m. Morphometric variables obtained from the two methods presented visual differences on the thematic maps, especially related to the Aspect. Generalization was the main process, whereas interpolation occurred for the HRT survey, being the process of choice for the APG method. A large number of points are obtained by the TLS, providing a dense cloud of points, spatially well-distributed, enabling the generalization process to obtain surface models with high performance.Anais da Academia Brasileira de Ciências2019-04-08T12:09:49Z2019-04-08T12:09:49Z2018-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf1678-2690http://dx.doi.org/10.1590/0001-3765201820170296http://www.locus.ufv.br/handle/123456789/24339engv. 90, n. 2, s. 1, p. 2001- 2010, ago. 2018Schünemann, Adriano L.Almeida, Pedro Henrique A.Thomazini, AndréFernandes Filho, Elpídio I.Francelino, Márcio R.Schaefer, Carlos E. G. R.Pereira, Antônio Batistainfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T07:02:27Zoai:locus.ufv.br:123456789/24339Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T07:02:27LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
title High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
spellingShingle High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
Schünemann, Adriano L.
Terrestrial laser scanner
Remote sensing
Geomorphology
Antarctic
title_short High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
title_full High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
title_fullStr High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
title_full_unstemmed High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
title_sort High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
author Schünemann, Adriano L.
author_facet Schünemann, Adriano L.
Almeida, Pedro Henrique A.
Thomazini, André
Fernandes Filho, Elpídio I.
Francelino, Márcio R.
Schaefer, Carlos E. G. R.
Pereira, Antônio Batista
author_role author
author2 Almeida, Pedro Henrique A.
Thomazini, André
Fernandes Filho, Elpídio I.
Francelino, Márcio R.
Schaefer, Carlos E. G. R.
Pereira, Antônio Batista
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Schünemann, Adriano L.
Almeida, Pedro Henrique A.
Thomazini, André
Fernandes Filho, Elpídio I.
Francelino, Márcio R.
Schaefer, Carlos E. G. R.
Pereira, Antônio Batista
dc.subject.por.fl_str_mv Terrestrial laser scanner
Remote sensing
Geomorphology
Antarctic
topic Terrestrial laser scanner
Remote sensing
Geomorphology
Antarctic
description High resolution topography (HRT) surveys is an important tool to model landscapes, especially in zones subjected to strong environmental changes, such as Antarctica, where landform is highly influenced by cryoclasty and permafrost melting. The aim of this work was to obtain a high accurate DTM for Keller Peninsula, Maritime Antarctica. The survey study was assessed in the 2014/2015 and 2015/2016 during the austral summer, by using Terrestrial Laser Scanner (TLS). In order to cover 8 km2 of the Peninsula, the TLS equipment was installed in 81 different points. Results of the DTM generated by TLS (hereafter, HRT-DTM), and the terrain variables Aspect, Slope and Hillshade obtained were compared with previous models generated by aerophotographic survA data de publicaçãoey (hereafter, APG-DTM). RMSE for the HRT and APG-DTM were 0.726 and 2.397 m, respectively. Spatial resolution of the DTMs was 0.20 m. Morphometric variables obtained from the two methods presented visual differences on the thematic maps, especially related to the Aspect. Generalization was the main process, whereas interpolation occurred for the HRT survey, being the process of choice for the APG method. A large number of points are obtained by the TLS, providing a dense cloud of points, spatially well-distributed, enabling the generalization process to obtain surface models with high performance.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
2019-04-08T12:09:49Z
2019-04-08T12:09:49Z
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 1678-2690
http://dx.doi.org/10.1590/0001-3765201820170296
http://www.locus.ufv.br/handle/123456789/24339
identifier_str_mv 1678-2690
url http://dx.doi.org/10.1590/0001-3765201820170296
http://www.locus.ufv.br/handle/123456789/24339
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 90, n. 2, s. 1, p. 2001- 2010, ago. 2018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Anais da Academia Brasileira de Ciências
publisher.none.fl_str_mv Anais da Academia Brasileira de Ciências
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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