GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL)
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Caminhos de Geografia |
Texto Completo: | https://seer.ufu.br/index.php/caminhosdegeografia/article/view/64135 |
Resumo: | The role of gravitational processes in the geomorphological evolution of river channels is still a topic with little attention in the national literature. An example of this process is observed in the Jacareí River (coast of Paraná), which in March 2011 was affected by intense mud and debris flows. The objective is to analyze the geomorphological evolution of the Jacareí River in the face of the changes imposed by the gravitational processes of 2011 and anthropic interventions carried out before and after the 2011 event. Aerial photographs and orbital images (1953-2019) in a GIS environment were used to analyze the channel morphology and calculation of variables related to morphometry and morphodynamics. The Jacareí River has undergone geomorphological changes since 1953, with progressive loss of extension and sinuosity and oscillation between straight and sinuous patterns, caused by human interventions. The 2011 event imposed anastomosing pattern on part of the Jacareí River. With the reopening of the channel by machinery (return to the straight pattern) still in 2011, the Jacareí River was progressively adjusting to the new landscape configuration, presenting higher average lateral migration rates compared to the period prior to 2011. The results reinforce the idea of river resilience in the area. In this sense, the article presents recommendations for the research continuity. |
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GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL)EVOLUÇÃO GEOMORFOLÓGICA DE CANAL FLUVIAL APÓS ASSOREAMENTO POR CORRIDAS DE LAMA E DETRITOS E OBRAS DE ENGENHARIA: O CASO DO RIO JACAREÍ (LITORAL DO PARANÁ)Geomorfologia fluvialMorfodinâmica fluvialMorfometria fluvialMorfologia fluvialPlanície aluvialFluvial geomorphologyRiver morphodynamicsRiver morphometryRiver morphologyAlluvial plainThe role of gravitational processes in the geomorphological evolution of river channels is still a topic with little attention in the national literature. An example of this process is observed in the Jacareí River (coast of Paraná), which in March 2011 was affected by intense mud and debris flows. The objective is to analyze the geomorphological evolution of the Jacareí River in the face of the changes imposed by the gravitational processes of 2011 and anthropic interventions carried out before and after the 2011 event. Aerial photographs and orbital images (1953-2019) in a GIS environment were used to analyze the channel morphology and calculation of variables related to morphometry and morphodynamics. The Jacareí River has undergone geomorphological changes since 1953, with progressive loss of extension and sinuosity and oscillation between straight and sinuous patterns, caused by human interventions. The 2011 event imposed anastomosing pattern on part of the Jacareí River. With the reopening of the channel by machinery (return to the straight pattern) still in 2011, the Jacareí River was progressively adjusting to the new landscape configuration, presenting higher average lateral migration rates compared to the period prior to 2011. The results reinforce the idea of river resilience in the area. In this sense, the article presents recommendations for the research continuity.O papel dos processos gravitacionais na evolução geomorfológica de canais fluviais ainda é um tema com abordagem escassa na literatura nacional. Um exemplo desse processo é observado no rio Jacareí (litoral do Paraná), que em março de 2011 foi afetado por intensas corridas de lama e detritos. Objetiva-se analisar a evolução geomorfológica do rio Jacareí frente as mudanças impostas pelos processos gravitacionais de 2011 e intervenções antrópicas realizadas antes e após o evento de 2011. Foram utilizadas fotografias aéreas e imagens orbitais (1953-2019) em ambiente SIG para análise da morfologia do canal e cálculo de variáveis referentes à morfometria e à morfodinâmica. O rio Jacareí apresenta transformações geomorfológicas desde 1953, com progressiva perda de extensão e sinuosidade e oscilação entre padrão reto e sinuoso, causadas por intervenções antrópicas. O evento de 2011 impôs padrão anastomosado em parte do rio Jacareí. Com a reabertura do canal por maquinário (retorno ao padrão reto) ainda em 2011, o rio Jacareí foi progressivamente se ajustando a nova configuração de paisagem, apresentando maiores taxas de migração lateral média em comparação ao período anterior a 2011. Os resultados reforçam a ideia de resiliência fluvial da área. Nesse sentido, o trabalho apresenta recomendações para a continuidade da pesquisa.EDUFU - Editora da Universidade Federal de Uberlândia2023-04-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado pelos paresapplication/pdfhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/6413510.14393/RCG249264135Caminhos de Geografia; Vol. 24 No. 92 (2023): Abril; 323-342Caminhos de Geografia; Vol. 24 Núm. 92 (2023): Abril; 323-342Caminhos de Geografia; v. 24 n. 92 (2023): Abril; 323-3421678-6343reponame:Caminhos de Geografiainstname:Universidade Federal de Uberlândia (UFU)instacron:UFUporhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/64135/35940Copyright (c) 2023 Otacílio Lopes de Souza da Paz, Eduardo Vedor de Paulahttp://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessPaz, Otacílio Lopes de Souza daPaula, Eduardo Vedor de2023-04-04T17:33:15Zoai:ojs.www.seer.ufu.br:article/64135Revistahttps://seer.ufu.br/index.php/caminhosdegeografia/indexPUBhttp://www.seer.ufu.br/index.php/caminhosdegeografia/oaiflaviasantosgeo@gmail.com1678-63431678-6343opendoar:2023-04-04T17:33:15Caminhos de Geografia - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) EVOLUÇÃO GEOMORFOLÓGICA DE CANAL FLUVIAL APÓS ASSOREAMENTO POR CORRIDAS DE LAMA E DETRITOS E OBRAS DE ENGENHARIA: O CASO DO RIO JACAREÍ (LITORAL DO PARANÁ) |
title |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
spellingShingle |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) Paz, Otacílio Lopes de Souza da Geomorfologia fluvial Morfodinâmica fluvial Morfometria fluvial Morfologia fluvial Planície aluvial Fluvial geomorphology River morphodynamics River morphometry River morphology Alluvial plain |
title_short |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
title_full |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
title_fullStr |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
title_full_unstemmed |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
title_sort |
GEOMORPHOLOGICAL EVOLUTION OF A RIVER CHANNEL AFTER SILTATION BY MUD AND DEBRIS FLOWS AND ENGINEERING WORKS: THE CASE OF THE JACAREÍ RIVER (COAST OF THE STATE OF PARANÁ, SOUTHERN BRAZIL) |
author |
Paz, Otacílio Lopes de Souza da |
author_facet |
Paz, Otacílio Lopes de Souza da Paula, Eduardo Vedor de |
author_role |
author |
author2 |
Paula, Eduardo Vedor de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Paz, Otacílio Lopes de Souza da Paula, Eduardo Vedor de |
dc.subject.por.fl_str_mv |
Geomorfologia fluvial Morfodinâmica fluvial Morfometria fluvial Morfologia fluvial Planície aluvial Fluvial geomorphology River morphodynamics River morphometry River morphology Alluvial plain |
topic |
Geomorfologia fluvial Morfodinâmica fluvial Morfometria fluvial Morfologia fluvial Planície aluvial Fluvial geomorphology River morphodynamics River morphometry River morphology Alluvial plain |
description |
The role of gravitational processes in the geomorphological evolution of river channels is still a topic with little attention in the national literature. An example of this process is observed in the Jacareí River (coast of Paraná), which in March 2011 was affected by intense mud and debris flows. The objective is to analyze the geomorphological evolution of the Jacareí River in the face of the changes imposed by the gravitational processes of 2011 and anthropic interventions carried out before and after the 2011 event. Aerial photographs and orbital images (1953-2019) in a GIS environment were used to analyze the channel morphology and calculation of variables related to morphometry and morphodynamics. The Jacareí River has undergone geomorphological changes since 1953, with progressive loss of extension and sinuosity and oscillation between straight and sinuous patterns, caused by human interventions. The 2011 event imposed anastomosing pattern on part of the Jacareí River. With the reopening of the channel by machinery (return to the straight pattern) still in 2011, the Jacareí River was progressively adjusting to the new landscape configuration, presenting higher average lateral migration rates compared to the period prior to 2011. The results reinforce the idea of river resilience in the area. In this sense, the article presents recommendations for the research continuity. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-04-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado pelos pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/64135 10.14393/RCG249264135 |
url |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/64135 |
identifier_str_mv |
10.14393/RCG249264135 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/64135/35940 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Otacílio Lopes de Souza da Paz, Eduardo Vedor de Paula http://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Otacílio Lopes de Souza da Paz, Eduardo Vedor de Paula http://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDUFU - Editora da Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
EDUFU - Editora da Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Caminhos de Geografia; Vol. 24 No. 92 (2023): Abril; 323-342 Caminhos de Geografia; Vol. 24 Núm. 92 (2023): Abril; 323-342 Caminhos de Geografia; v. 24 n. 92 (2023): Abril; 323-342 1678-6343 reponame:Caminhos de Geografia instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Caminhos de Geografia |
collection |
Caminhos de Geografia |
repository.name.fl_str_mv |
Caminhos de Geografia - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
flaviasantosgeo@gmail.com |
_version_ |
1797067010472935424 |