Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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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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 |
_version_ |
1752129750855319552 |