Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS

Detalhes bibliográficos
Autor(a) principal: Georgin, Jordana
Data de Publicação: 2015
Outros Autores: Oliveira, Gislayne Alves, Rosa, Ana Lúcia Denardin da
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)
Texto Completo: https://periodicos.ufsm.br/reget/article/view/16834
Resumo: Knowledge of morphometric characteristics of a watershed is essential to the development of plans aimed at understanding the processes in this medium. The aim of this study was to analyze and compare the morphometric characterization of the river basins of the High Jacuí and Vacacaí, in Rio Grande do Sul State and relate to possible flooding occurrences. For this, from data SRTM images and shapefiles the river basins of the land morphometric parameters were calculated for the study of the hydrological behavior of the basin. The watershed of the Upper Jacuí and Vacacaí have elongated profile, compactness coefficient of 1.4 and 1:36, form factor of 0.3547 and 0.4344 and circularity index of 0.4977 and 0.5312, respectively, indicating that they are unlikely to flooding. The maximum altitude was found to be 773 m and 4 m minimum relief of the terrain showed lower slopes above 4%. The more elongated shape of the basin indicates that precipitation over it focuses on different points, contributing to minimize the influence of the intensity of rainfall, which could cause major changes in the flow of the stream.
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spelling Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RSEstudo comparativo de índices morfométricos relacionado com cheias nas bacias hidrográficas do alto Jacuí e Vacacaí -Vacacaí Mirim –RSMorphometrywatershed runoff.MorfometriaBacia hidrográficaEscoamento superficial.Knowledge of morphometric characteristics of a watershed is essential to the development of plans aimed at understanding the processes in this medium. The aim of this study was to analyze and compare the morphometric characterization of the river basins of the High Jacuí and Vacacaí, in Rio Grande do Sul State and relate to possible flooding occurrences. For this, from data SRTM images and shapefiles the river basins of the land morphometric parameters were calculated for the study of the hydrological behavior of the basin. The watershed of the Upper Jacuí and Vacacaí have elongated profile, compactness coefficient of 1.4 and 1:36, form factor of 0.3547 and 0.4344 and circularity index of 0.4977 and 0.5312, respectively, indicating that they are unlikely to flooding. The maximum altitude was found to be 773 m and 4 m minimum relief of the terrain showed lower slopes above 4%. The more elongated shape of the basin indicates that precipitation over it focuses on different points, contributing to minimize the influence of the intensity of rainfall, which could cause major changes in the flow of the stream.O conhecimento das características morfométricas de uma bacia hidrográfica é essencial para o desenvolvimento de planos que visem à compreensão dos processos neste meio. O objetivo do presente estudo foi analisar e comparar a caracterização morfométrica das bacias hidrográficas do Alto Jacuí e Vacacaí, no Estado do Rio Grande do Sul e relacionar com possíveis ocorrências de cheias. Para isso, a partir de dados de imagens SRTM e shapefiles das bacias hidrográficas do terreno foram calculados os parâmetros morfométricos para o estudo do comportamento hidrológico da bacia. As bacias hidrográficas do Alto Jacuí e Vacacaí apresentam perfil alongado, coeficiente de compacidade de 1.4 e 1.36, fator de forma de 0.3547 e 0.4344 e índice de circularidade de 0.4977 e 0.5312, respectivamente, indicando que são pouco susceptíveis a enchentes. A altitude máxima encontrada foi de 773 m e a mínima 4 m e o relevo do terreno apresentou declividade menor que 4%. A forma mais alongada da bacia hidrográfica indica que a precipitação sobre ela se concentra em diferentes pontos, concorrendo para amenizar a influência da intensidade de chuvas, as quais poderiam causar maiores variações da vazão do curso d’água.Universidade Federal de Santa Maria2015-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/reget/article/view/1683410.5902/2236117016834Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 19, N. 2, MAY-AUG., 2015; 1357-1364Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 19, N. 2, MAIO-AGO., 2015; 1357-13642236-11702236-1170reponame:Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/reget/article/view/16834/pdfhttp://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccessGeorgin, JordanaOliveira, Gislayne AlvesRosa, Ana Lúcia Denardin da2022-09-12T19:33:15Zoai:ojs.pkp.sfu.ca:article/16834Revistahttps://periodicos.ufsm.br/regetPUBhttps://periodicos.ufsm.br/reget/oaimarcelobdarosa@gmail.com||reget.ufsm@gmail.com2236-11702236-1170opendoar:2022-09-12T19:33:15Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
Estudo comparativo de índices morfométricos relacionado com cheias nas bacias hidrográficas do alto Jacuí e Vacacaí -Vacacaí Mirim –RS
title Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
spellingShingle Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
Georgin, Jordana
Morphometry
watershed runoff.
Morfometria
Bacia hidrográfica
Escoamento superficial.
title_short Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
title_full Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
title_fullStr Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
title_full_unstemmed Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
title_sort Comparative study of indices related to floods in morphometric river basin of high Jacuí And Vacacaí -Vacacaí MIRIM –RS
author Georgin, Jordana
author_facet Georgin, Jordana
Oliveira, Gislayne Alves
Rosa, Ana Lúcia Denardin da
author_role author
author2 Oliveira, Gislayne Alves
Rosa, Ana Lúcia Denardin da
author2_role author
author
dc.contributor.author.fl_str_mv Georgin, Jordana
Oliveira, Gislayne Alves
Rosa, Ana Lúcia Denardin da
dc.subject.por.fl_str_mv Morphometry
watershed runoff.
Morfometria
Bacia hidrográfica
Escoamento superficial.
topic Morphometry
watershed runoff.
Morfometria
Bacia hidrográfica
Escoamento superficial.
description Knowledge of morphometric characteristics of a watershed is essential to the development of plans aimed at understanding the processes in this medium. The aim of this study was to analyze and compare the morphometric characterization of the river basins of the High Jacuí and Vacacaí, in Rio Grande do Sul State and relate to possible flooding occurrences. For this, from data SRTM images and shapefiles the river basins of the land morphometric parameters were calculated for the study of the hydrological behavior of the basin. The watershed of the Upper Jacuí and Vacacaí have elongated profile, compactness coefficient of 1.4 and 1:36, form factor of 0.3547 and 0.4344 and circularity index of 0.4977 and 0.5312, respectively, indicating that they are unlikely to flooding. The maximum altitude was found to be 773 m and 4 m minimum relief of the terrain showed lower slopes above 4%. The more elongated shape of the basin indicates that precipitation over it focuses on different points, contributing to minimize the influence of the intensity of rainfall, which could cause major changes in the flow of the stream.
publishDate 2015
dc.date.none.fl_str_mv 2015-03-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/reget/article/view/16834
10.5902/2236117016834
url https://periodicos.ufsm.br/reget/article/view/16834
identifier_str_mv 10.5902/2236117016834
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/reget/article/view/16834/pdf
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 19, N. 2, MAY-AUG., 2015; 1357-1364
Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 19, N. 2, MAIO-AGO., 2015; 1357-1364
2236-1170
2236-1170
reponame:Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)
instname:Universidade Federal de Santa Maria (UFSM)
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instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)
collection Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)
repository.name.fl_str_mv Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) - Universidade Federal de Santa Maria (UFSM)
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