High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
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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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 |
_version_ |
1822610597355716608 |