Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV

Detalhes bibliográficos
Autor(a) principal: Pereira,Marco Alésio Figueiredo
Data de Publicação: 2019
Outros Autores: Barbieiro,Bruno Lippo, Carneiro,Marciano, Kobiyama,Masato
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ambiente & Água
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500303
Resumo: Abstract The junction angles in fluvial channels are determined from complex erosion and deposition processes, resulting from river-flow dynamics, bed and margin morphology, and so on. Knowledge regarding these angles is important in order to better understand the existing conditions in a basin. In this sense, the objective of the present study was to determine the junction angles on fluvial channels, called α, β and γ, applying the law of cosines. Georeferenced Google Earth Pro images and UAV images were used. Then, the values calculated from the georeferenced aerial images were compared with the values calculated from the minimum energy principle. To visualize and understand the obtained angles, the Junction Angles Diagram was used. The obtained result shows that the methodology using georeferenced aerial images have good performance for determining junction angles on fluvial channels.
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spelling Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAVgeoreferencingjunction anglelaw of cosines.Abstract The junction angles in fluvial channels are determined from complex erosion and deposition processes, resulting from river-flow dynamics, bed and margin morphology, and so on. Knowledge regarding these angles is important in order to better understand the existing conditions in a basin. In this sense, the objective of the present study was to determine the junction angles on fluvial channels, called α, β and γ, applying the law of cosines. Georeferenced Google Earth Pro images and UAV images were used. Then, the values calculated from the georeferenced aerial images were compared with the values calculated from the minimum energy principle. To visualize and understand the obtained angles, the Junction Angles Diagram was used. The obtained result shows that the methodology using georeferenced aerial images have good performance for determining junction angles on fluvial channels.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500303Revista Ambiente & Água v.14 n.5 2019reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2345info:eu-repo/semantics/openAccessPereira,Marco Alésio FigueiredoBarbieiro,Bruno LippoCarneiro,MarcianoKobiyama,Masatoeng2019-09-30T00:00:00Zoai:scielo:S1980-993X2019000500303Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2019-09-30T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false
dc.title.none.fl_str_mv Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
title Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
spellingShingle Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
Pereira,Marco Alésio Figueiredo
georeferencing
junction angle
law of cosines.
title_short Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
title_full Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
title_fullStr Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
title_full_unstemmed Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
title_sort Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
author Pereira,Marco Alésio Figueiredo
author_facet Pereira,Marco Alésio Figueiredo
Barbieiro,Bruno Lippo
Carneiro,Marciano
Kobiyama,Masato
author_role author
author2 Barbieiro,Bruno Lippo
Carneiro,Marciano
Kobiyama,Masato
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira,Marco Alésio Figueiredo
Barbieiro,Bruno Lippo
Carneiro,Marciano
Kobiyama,Masato
dc.subject.por.fl_str_mv georeferencing
junction angle
law of cosines.
topic georeferencing
junction angle
law of cosines.
description Abstract The junction angles in fluvial channels are determined from complex erosion and deposition processes, resulting from river-flow dynamics, bed and margin morphology, and so on. Knowledge regarding these angles is important in order to better understand the existing conditions in a basin. In this sense, the objective of the present study was to determine the junction angles on fluvial channels, called α, β and γ, applying the law of cosines. Georeferenced Google Earth Pro images and UAV images were used. Then, the values calculated from the georeferenced aerial images were compared with the values calculated from the minimum energy principle. To visualize and understand the obtained angles, the Junction Angles Diagram was used. The obtained result shows that the methodology using georeferenced aerial images have good performance for determining junction angles on fluvial channels.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500303
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500303
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4136/ambi-agua.2345
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
dc.source.none.fl_str_mv Revista Ambiente & Água v.14 n.5 2019
reponame:Revista Ambiente & Água
instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron:IPABHI
instname_str Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron_str IPABHI
institution IPABHI
reponame_str Revista Ambiente & Água
collection Revista Ambiente & Água
repository.name.fl_str_mv Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
repository.mail.fl_str_mv ||ambi.agua@gmail.com
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