Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil

Detalhes bibliográficos
Autor(a) principal: Campos, José Nilson Bezerra
Data de Publicação: 2016
Outros Autores: Lima Neto, Iran Eduardo, Studart, Ticiana Marinho de Carvalho, Nascimento, Luiz Sérgio Vasconcelos do
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/70696
Resumo: This study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulations were conducted to study the effect of reservoir morphology (including real and simplified conical forms) on the water storage process at different reliability levels. The reservoirs were categorized as convex (60.0%), slightly convex (27.5%) or linear (12.5%). When the conical approximation was used instead of the real lake form, a trade-off occurred between reservoir yield and evaporation losses, with different trends for the convex, slightly convex and linear reservoirs. Using the conical approximation, the water yield prediction errors reached approximately 5% of the mean annual inflow, which is negligible for large reservoirs. However, for smaller reservoirs, this error became important. Therefore, this paper presents a new procedure for correcting the yield-evaporation relationships that were obtained by assuming a conical approximation rather than the real reservoir morphology. The combination of this correction with the Regulation Triangle Diagram is useful for rapidly and objectively predicting reservoir yield and evaporation losses in semi-arid environments.
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spelling Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid BrazilEvaporation lossesHydrological modelingLake morphologyReservoir yieldSemi-arid regionsWater availabilityThis study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulations were conducted to study the effect of reservoir morphology (including real and simplified conical forms) on the water storage process at different reliability levels. The reservoirs were categorized as convex (60.0%), slightly convex (27.5%) or linear (12.5%). When the conical approximation was used instead of the real lake form, a trade-off occurred between reservoir yield and evaporation losses, with different trends for the convex, slightly convex and linear reservoirs. Using the conical approximation, the water yield prediction errors reached approximately 5% of the mean annual inflow, which is negligible for large reservoirs. However, for smaller reservoirs, this error became important. Therefore, this paper presents a new procedure for correcting the yield-evaporation relationships that were obtained by assuming a conical approximation rather than the real reservoir morphology. The combination of this correction with the Regulation Triangle Diagram is useful for rapidly and objectively predicting reservoir yield and evaporation losses in semi-arid environments.Este estudo investiga as relações entre vazão e evaporação em função da morfologia de lagos em uma região semiárida do Brasil. Inicialmente, foi proposta uma nova metodologia para classificar a morfologia de 40 reservatórios no Estado do Ceará, com capacidades de armazenamento variando entre aproximadamente 5 e 4500 hm3. Em seguida, foram realizadas simulações do tipo Monte Carlo para estudar o efeito da morfologia do reservatório (incluindo suas formas reais e cônicas simplificadas) sobre o processo de armazenamento de água em diferentes níveis de garantia. Os reservatórios foram classificados como convexos (60,0%), ligeira mente convexos (27,5%) ou lineares (12,5%). Quando a aproximação cônica foi usada em vez de a forma real do lago, ocorreu uma compensação entre vazão e perdas por evaporação com diferentes tendências para os reservatórios convexos, ligeiramente convexos e lineares. Usando a aproximação cônica, os erros na previsão da vazão da água foram de aproximadamente 5% da média da vazão anual afluente, o que pode ser considerado insignificante para grandes reservatórios. No entanto, para reservatórios menores, este erro se tornou relevante. Portanto, este trabalho apresenta um novo procedimento para corrigir as relações entre vazão-evaporação que foram obtidas assumindo uma aproximação cônica, em vez de a morfologia real do reservatório. A combinação desta correção com o Diagrama Triangular de Regularização é útil para predizer rápida e objetivamente as perdas de vazão e evaporação do reservatório em ambientes semiáridos.Anais da Academia Brasileira de Ciências2023-02-09T16:22:39Z2023-02-09T16:22:39Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSTUDART, T. M. C. et al. Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil. Anais da Academia Brasileira de Ciências, [s.l.], v. 88, n. 2, p. 1113-1125, abr./jun. 2016. DOI: https://doi.org/10.1590/0001-37652016201501241678-2690http://www.repositorio.ufc.br/handle/riufc/70696Campos, José Nilson BezerraLima Neto, Iran EduardoStudart, Ticiana Marinho de CarvalhoNascimento, Luiz Sérgio Vasconcelos doinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-12-06T17:57:26Zoai:repositorio.ufc.br:riufc/70696Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:56:36.962007Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
title Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
spellingShingle Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
Campos, José Nilson Bezerra
Evaporation losses
Hydrological modeling
Lake morphology
Reservoir yield
Semi-arid regions
Water availability
title_short Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
title_full Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
title_fullStr Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
title_full_unstemmed Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
title_sort Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
author Campos, José Nilson Bezerra
author_facet Campos, José Nilson Bezerra
Lima Neto, Iran Eduardo
Studart, Ticiana Marinho de Carvalho
Nascimento, Luiz Sérgio Vasconcelos do
author_role author
author2 Lima Neto, Iran Eduardo
Studart, Ticiana Marinho de Carvalho
Nascimento, Luiz Sérgio Vasconcelos do
author2_role author
author
author
dc.contributor.author.fl_str_mv Campos, José Nilson Bezerra
Lima Neto, Iran Eduardo
Studart, Ticiana Marinho de Carvalho
Nascimento, Luiz Sérgio Vasconcelos do
dc.subject.por.fl_str_mv Evaporation losses
Hydrological modeling
Lake morphology
Reservoir yield
Semi-arid regions
Water availability
topic Evaporation losses
Hydrological modeling
Lake morphology
Reservoir yield
Semi-arid regions
Water availability
description This study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulations were conducted to study the effect of reservoir morphology (including real and simplified conical forms) on the water storage process at different reliability levels. The reservoirs were categorized as convex (60.0%), slightly convex (27.5%) or linear (12.5%). When the conical approximation was used instead of the real lake form, a trade-off occurred between reservoir yield and evaporation losses, with different trends for the convex, slightly convex and linear reservoirs. Using the conical approximation, the water yield prediction errors reached approximately 5% of the mean annual inflow, which is negligible for large reservoirs. However, for smaller reservoirs, this error became important. Therefore, this paper presents a new procedure for correcting the yield-evaporation relationships that were obtained by assuming a conical approximation rather than the real reservoir morphology. The combination of this correction with the Regulation Triangle Diagram is useful for rapidly and objectively predicting reservoir yield and evaporation losses in semi-arid environments.
publishDate 2016
dc.date.none.fl_str_mv 2016
2023-02-09T16:22:39Z
2023-02-09T16:22:39Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv STUDART, T. M. C. et al. Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil. Anais da Academia Brasileira de Ciências, [s.l.], v. 88, n. 2, p. 1113-1125, abr./jun. 2016. DOI: https://doi.org/10.1590/0001-3765201620150124
1678-2690
http://www.repositorio.ufc.br/handle/riufc/70696
identifier_str_mv STUDART, T. M. C. et al. Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil. Anais da Academia Brasileira de Ciências, [s.l.], v. 88, n. 2, p. 1113-1125, abr./jun. 2016. DOI: https://doi.org/10.1590/0001-3765201620150124
1678-2690
url http://www.repositorio.ufc.br/handle/riufc/70696
dc.language.iso.fl_str_mv eng
language eng
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 Anais da Academia Brasileira de Ciências
publisher.none.fl_str_mv Anais da Academia Brasileira de Ciências
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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