QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Engenharia na Agricultura |
Texto Completo: | https://periodicos.ufv.br/reveng/article/view/278 |
Resumo: | In some Brazilian states, the grant for water use is based on the minimum stream flow of reference (Q7,10 ), which is calculated on the basis of the annual state of maximum water scarcity. This value can be restrictive in watersheds where the water demand is high. Thus the present study was done to evaluate the seasonality of the minimum Q7,10 on quarterly basis. Traditional method proposed by Eletrobrás (1985) for regionalization of stream flows was applied to the San Francisco river watershed, at Três Marias reservoir. The comparison of estimated values of the quarterly Q7,10 with the estimates of annual Q7,10, showed considerable increase of water availability in the first and second quarters. The results demonstrated that the calculating Q7,10 based on quarterly periods provides considerable increase in water availability, giving flexibility to grant water use mainly during the rainiest periods of the year. |
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Engenharia na Agricultura |
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QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCEFLEXIBILIDADE DAS VAZÕES MÍNIMAS DE REFERÊNCIA COM A ADOÇÃO DO PERÍODO TRIMESTRALdisponibilidade hídricasazonalidade na ofertaoutorga.In some Brazilian states, the grant for water use is based on the minimum stream flow of reference (Q7,10 ), which is calculated on the basis of the annual state of maximum water scarcity. This value can be restrictive in watersheds where the water demand is high. Thus the present study was done to evaluate the seasonality of the minimum Q7,10 on quarterly basis. Traditional method proposed by Eletrobrás (1985) for regionalization of stream flows was applied to the San Francisco river watershed, at Três Marias reservoir. The comparison of estimated values of the quarterly Q7,10 with the estimates of annual Q7,10, showed considerable increase of water availability in the first and second quarters. The results demonstrated that the calculating Q7,10 based on quarterly periods provides considerable increase in water availability, giving flexibility to grant water use mainly during the rainiest periods of the year.Em alguns Estados do Brasil, o processo de outorga de uso de águas superficiais utiliza a vazão mínima de referência Q7,10, que é obtida com base no período anual de maior escassez hídrica. Este valor pode-se tornar restritivo em bacias onde há maior demanda de água e, por essa razão, o presente estudo buscou avaliar a sazonalidade na vazão mínima de referência Q7,10, com a consideração do período trimestral. A metodologia de regionalização de vazões utilizada foi a tradicional, proposta por Eletrobrás (1985), aplicada à bacia hidrográfica do rio São Francisco, a montante do reservatório de Três Marias. Os valores estimados das vazões mínimas de referência trimestrais foram comparados com as estimativas de vazões mínimas com base no período anual, evidenciando um aumento considerável na disponibilidade hídrica no primeiro e segundo trimestres. Os resultados demonstraram que a obtenção das vazões mínimas de referência, baseada em períodos trimestrais, proporcionou considerável aumento na disponibilidade hídrica, flexibilizando o processo de outorga de uso de água, principalmente nos períodos mais chuvosos do ano.Universidade Federal de Viçosa - UFV2011-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/reveng/article/view/27810.13083/reveng.v19i3.309Engineering in Agriculture; Vol. 19 No. 3 (2011); 244-254Revista Engenharia na Agricultura - REVENG; v. 19 n. 3 (2011); 244-2542175-68131414-398410.13083/reveng.v19i3reponame:Engenharia na Agriculturainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/reveng/article/view/278/208Silva, Demétrius David daMarques, Felipe AzevedoLemos, Alysson Felicianoinfo:eu-repo/semantics/openAccess2023-01-19T12:50:39Zoai:ojs.periodicos.ufv.br:article/278Revistahttps://periodicos.ufv.br/revengPUBhttps://periodicos.ufv.br/reveng/oairevistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br2175-68131414-3984opendoar:2023-01-19T12:50:39Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE FLEXIBILIDADE DAS VAZÕES MÍNIMAS DE REFERÊNCIA COM A ADOÇÃO DO PERÍODO TRIMESTRAL |
title |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
spellingShingle |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE Silva, Demétrius David da disponibilidade hídrica sazonalidade na oferta outorga. |
title_short |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
title_full |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
title_fullStr |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
title_full_unstemmed |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
title_sort |
QUARTERLY PERIOD ALLOWS FLEXIBILITY IN THE MINIMUM STREAM FLOW OF REFERENCE |
author |
Silva, Demétrius David da |
author_facet |
Silva, Demétrius David da Marques, Felipe Azevedo Lemos, Alysson Feliciano |
author_role |
author |
author2 |
Marques, Felipe Azevedo Lemos, Alysson Feliciano |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Demétrius David da Marques, Felipe Azevedo Lemos, Alysson Feliciano |
dc.subject.por.fl_str_mv |
disponibilidade hídrica sazonalidade na oferta outorga. |
topic |
disponibilidade hídrica sazonalidade na oferta outorga. |
description |
In some Brazilian states, the grant for water use is based on the minimum stream flow of reference (Q7,10 ), which is calculated on the basis of the annual state of maximum water scarcity. This value can be restrictive in watersheds where the water demand is high. Thus the present study was done to evaluate the seasonality of the minimum Q7,10 on quarterly basis. Traditional method proposed by Eletrobrás (1985) for regionalization of stream flows was applied to the San Francisco river watershed, at Três Marias reservoir. The comparison of estimated values of the quarterly Q7,10 with the estimates of annual Q7,10, showed considerable increase of water availability in the first and second quarters. The results demonstrated that the calculating Q7,10 based on quarterly periods provides considerable increase in water availability, giving flexibility to grant water use mainly during the rainiest periods of the year. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-30 |
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.ufv.br/reveng/article/view/278 10.13083/reveng.v19i3.309 |
url |
https://periodicos.ufv.br/reveng/article/view/278 |
identifier_str_mv |
10.13083/reveng.v19i3.309 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/reveng/article/view/278/208 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
dc.source.none.fl_str_mv |
Engineering in Agriculture; Vol. 19 No. 3 (2011); 244-254 Revista Engenharia na Agricultura - REVENG; v. 19 n. 3 (2011); 244-254 2175-6813 1414-3984 10.13083/reveng.v19i3 reponame:Engenharia na Agricultura instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
Engenharia na Agricultura |
collection |
Engenharia na Agricultura |
repository.name.fl_str_mv |
Engenharia na Agricultura - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
revistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br |
_version_ |
1800211144990785536 |