High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica
Abstract 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...
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ftdoajarticles:oai:doaj.org/article:4dfed6dcc9c14cf5bb786eb1e964a38f 2023-05-15T13:43:06+02:00 High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica ADRIANO L. SCHÜNEMANN PEDRO HENRIQUE A. ALMEIDA ANDRÉ THOMAZINI ELPÍDIO I. FERNANDES FILHO MÁRCIO R. FRANCELINO CARLOS E.G.R. SCHAEFER ANTONIO BATISTA PEREIRA 2018-07-01T00:00:00Z https://doi.org/10.1590/0001-3765201820170296 https://doaj.org/article/4dfed6dcc9c14cf5bb786eb1e964a38f EN eng Academia Brasileira de Ciências http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502001&lng=en&tlng=en https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765201820170296 https://doaj.org/article/4dfed6dcc9c14cf5bb786eb1e964a38f Anais da Academia Brasileira de Ciências, Vol 90, Iss 2 suppl 1, Pp 2001-2010 (2018) terrestrial laser scanner remote sensing geomorphology Antarctic Science Q article 2018 ftdoajarticles https://doi.org/10.1590/0001-3765201820170296 2022-12-30T22:27:29Z Abstract 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 survey (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. Article in Journal/Newspaper Antarc* Antarctic Antarctica permafrost Directory of Open Access Journals: DOAJ Articles Antarctic Austral Keller ENVELOPE(-58.406,-58.406,-62.073,-62.073) Keller peninsula ENVELOPE(-58.406,-58.406,-62.073,-62.073) Anais da Academia Brasileira de Ciências 90 2 suppl 1 2001 2010 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
terrestrial laser scanner remote sensing geomorphology Antarctic Science Q |
spellingShingle |
terrestrial laser scanner remote sensing geomorphology Antarctic Science Q ADRIANO L. SCHÜNEMANN PEDRO HENRIQUE A. ALMEIDA ANDRÉ THOMAZINI ELPÍDIO I. FERNANDES FILHO MÁRCIO R. FRANCELINO CARLOS E.G.R. SCHAEFER ANTONIO BATISTA PEREIRA High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica |
topic_facet |
terrestrial laser scanner remote sensing geomorphology Antarctic Science Q |
description |
Abstract 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 survey (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. |
format |
Article in Journal/Newspaper |
author |
ADRIANO L. SCHÜNEMANN PEDRO HENRIQUE A. ALMEIDA ANDRÉ THOMAZINI ELPÍDIO I. FERNANDES FILHO MÁRCIO R. FRANCELINO CARLOS E.G.R. SCHAEFER ANTONIO BATISTA PEREIRA |
author_facet |
ADRIANO L. SCHÜNEMANN PEDRO HENRIQUE A. ALMEIDA ANDRÉ THOMAZINI ELPÍDIO I. FERNANDES FILHO MÁRCIO R. FRANCELINO CARLOS E.G.R. SCHAEFER ANTONIO BATISTA PEREIRA |
author_sort |
ADRIANO L. SCHÜNEMANN |
title |
High-resolution topography for Digital Terrain Model (DTM) in Keller Peninsula, Maritime Antarctica |
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 |
publisher |
Academia Brasileira de Ciências |
publishDate |
2018 |
url |
https://doi.org/10.1590/0001-3765201820170296 https://doaj.org/article/4dfed6dcc9c14cf5bb786eb1e964a38f |
long_lat |
ENVELOPE(-58.406,-58.406,-62.073,-62.073) ENVELOPE(-58.406,-58.406,-62.073,-62.073) |
geographic |
Antarctic Austral Keller Keller peninsula |
geographic_facet |
Antarctic Austral Keller Keller peninsula |
genre |
Antarc* Antarctic Antarctica permafrost |
genre_facet |
Antarc* Antarctic Antarctica permafrost |
op_source |
Anais da Academia Brasileira de Ciências, Vol 90, Iss 2 suppl 1, Pp 2001-2010 (2018) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502001&lng=en&tlng=en https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765201820170296 https://doaj.org/article/4dfed6dcc9c14cf5bb786eb1e964a38f |
op_doi |
https://doi.org/10.1590/0001-3765201820170296 |
container_title |
Anais da Academia Brasileira de Ciências |
container_volume |
90 |
container_issue |
2 suppl 1 |
container_start_page |
2001 |
op_container_end_page |
2010 |
_version_ |
1766184254261166080 |