NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Environmental Smoke |
Texto Completo: | https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176 |
Resumo: | The knowledge of physical, biological, and chemical estuarine processes and how they are affected by climate change conditions is essential for improving estuarine management. A common methodological approach for studying these complex processes is based on the implementation of numerical models supported by field data as bathymetry, sediment characteristics, flow discharges, current velocities, and sea water levels. This work is based on the implementation of a numerical model of the Minho River estuary using the Delft3D software. This model is able to simulate hydrodynamic and morphodynamic processes for different time scales. It was calibrated using the OpenDA tool, which automatically determines some of the models’ parameters, such as the tidal constituents and the roughness coefficient, aiming to minimize the error between observed data and simulated results. Different scenarios were considered to assess the effects of climate change, according to the 5th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). Results showed that the elevation in the estuary mouth can reach 77 cm, depending on the considered scenario. It was also determined that floods are the main sediment transport driver along the estuary, intensifying the accretion processes. Furthermore, the sea-level rise reduces the amount of transported sediments to the coastal platform, increasing the erosion risk in this area and increasing the accretion inside the estuary. |
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NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARYAPLICAÇÃO DE MODELOS NUMÉRICOS PARA ANALISAR OS IMPACTOS DAS MUDANÇAS CLIMÁTICAS NA MORFODINÂMICA DO ESTUÁRIO DO RIO MINHOMorphodynamicsNumerical modellingClimate changesMorfodinâmicaModelação numéricaMudanças climáticasThe knowledge of physical, biological, and chemical estuarine processes and how they are affected by climate change conditions is essential for improving estuarine management. A common methodological approach for studying these complex processes is based on the implementation of numerical models supported by field data as bathymetry, sediment characteristics, flow discharges, current velocities, and sea water levels. This work is based on the implementation of a numerical model of the Minho River estuary using the Delft3D software. This model is able to simulate hydrodynamic and morphodynamic processes for different time scales. It was calibrated using the OpenDA tool, which automatically determines some of the models’ parameters, such as the tidal constituents and the roughness coefficient, aiming to minimize the error between observed data and simulated results. Different scenarios were considered to assess the effects of climate change, according to the 5th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). Results showed that the elevation in the estuary mouth can reach 77 cm, depending on the considered scenario. It was also determined that floods are the main sediment transport driver along the estuary, intensifying the accretion processes. Furthermore, the sea-level rise reduces the amount of transported sediments to the coastal platform, increasing the erosion risk in this area and increasing the accretion inside the estuary.Conhecer os processos físicos, químicos e biológicos estuarinos e entender como as mudanças climáticas podem afetá-los é crucial para melhorar a gestão destes sistemas. Uma das metodologias utilizadas para estudar estes processos complexos consiste na aplicação de modelos numéricos, suportados por dados de campo como a batimetria, características dos sedimentos, caudais fluviais, correntes e níveis de elevação do mar. Neste trabalho avaliaram-se diferentes cenários hidrodinâmicos e morfodinâmicos no estuário do rio Minho, através da implementação de um modelo numérico baseado no software Delft3D. Este modelo permite simular os processos hidrodinâmicos e morfodinâmicos em diferentes escalas temporais, tendo sido calibrado utilizando a ferramenta OpenDA, que ajusta de forma automática os valores de determinados parâmetros do modelo, minimizando os erros entre dados observados e resultados simulados. Após a calibração, foram simulados diferentes cenários para avaliar o impacto das alterações climáticas, sendo estes estabelecidos através de diferentes elevações do nível do mar conforme o 5º Relatório de Avaliação do Painel Intergovernamental sobre Mudanças Climáticas (IPCC). Os resultados mostraram que a elevação do nível na embocadura do estuário pode alcançar até 77 cm, dependendo do cenário considerado. Identificou-se que a ocorrência de cheias é o principal responsável pelo transporte de sedimentos ao longo do estuário, intensificando o processo de sedimentação. Verificou-se ainda que, para um mesmo caudal, o aumento do nível do mar reduz a quantidade de sedimentos transportada para a plataforma costeira, podendo intensificar a erosão que ocorre nesta zona e aumentar os processos sedimentares dentro do próprio estuário.Environmental Smoke Institute2021-12-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlhttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/17610.32435/envsmoke/xibesymp.1Environmental Smoke; No. Special Issue (2021): X Iberian Symposium on the Hydrographic Minho River Basin; 1-6Environmental Smoke; n. Special Issue (2021): X Simpósio Ibérico sobre a Bacia Hidrográfica do Rio Minho; 1-62595-5527reponame:Environmental Smokeinstname:Environmental Smokeinstacron:ESenghttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176/145https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176/253Copyright (c) 2021 Willian Melo, José Pinho, Isabel Iglesias, Ana Bio, Paulo Avilez-Valente, Ana Gomes, José Vieira, Luísa Bastos, Fernando Veloso-Gomeshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMelo, WillianPinho, JoséIglesias, IsabelBio, AnaAvilez-Valente, PauloGomes, AnaVieira, JoséBastos, LuísaVeloso-Gomes, Fernando2024-02-07T22:59:58Zoai:ojs.pkp.sfu.ca:article/176Revistahttps://environmentalsmoke.com.br/index.php/EnvSmokePRIhttps://environmentalsmoke.com.br/index.php/EnvSmoke/oaismoke@environmentalsmoke.com.br2595-55272595-5527opendoar:2024-02-07T22:59:58Environmental Smoke - Environmental Smokefalse |
dc.title.none.fl_str_mv |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY APLICAÇÃO DE MODELOS NUMÉRICOS PARA ANALISAR OS IMPACTOS DAS MUDANÇAS CLIMÁTICAS NA MORFODINÂMICA DO ESTUÁRIO DO RIO MINHO |
title |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
spellingShingle |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY Melo, Willian Morphodynamics Numerical modelling Climate changes Morfodinâmica Modelação numérica Mudanças climáticas |
title_short |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
title_full |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
title_fullStr |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
title_full_unstemmed |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
title_sort |
NUMERICAL MODELS’ APPLICATION FOR MORPHODYNAMICS ASSESSMENT OF CLIMATE CHANGE IMPACTS IN THE MINHO RIVER ESTUARY |
author |
Melo, Willian |
author_facet |
Melo, Willian Pinho, José Iglesias, Isabel Bio, Ana Avilez-Valente, Paulo Gomes, Ana Vieira, José Bastos, Luísa Veloso-Gomes, Fernando |
author_role |
author |
author2 |
Pinho, José Iglesias, Isabel Bio, Ana Avilez-Valente, Paulo Gomes, Ana Vieira, José Bastos, Luísa Veloso-Gomes, Fernando |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Melo, Willian Pinho, José Iglesias, Isabel Bio, Ana Avilez-Valente, Paulo Gomes, Ana Vieira, José Bastos, Luísa Veloso-Gomes, Fernando |
dc.subject.por.fl_str_mv |
Morphodynamics Numerical modelling Climate changes Morfodinâmica Modelação numérica Mudanças climáticas |
topic |
Morphodynamics Numerical modelling Climate changes Morfodinâmica Modelação numérica Mudanças climáticas |
description |
The knowledge of physical, biological, and chemical estuarine processes and how they are affected by climate change conditions is essential for improving estuarine management. A common methodological approach for studying these complex processes is based on the implementation of numerical models supported by field data as bathymetry, sediment characteristics, flow discharges, current velocities, and sea water levels. This work is based on the implementation of a numerical model of the Minho River estuary using the Delft3D software. This model is able to simulate hydrodynamic and morphodynamic processes for different time scales. It was calibrated using the OpenDA tool, which automatically determines some of the models’ parameters, such as the tidal constituents and the roughness coefficient, aiming to minimize the error between observed data and simulated results. Different scenarios were considered to assess the effects of climate change, according to the 5th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). Results showed that the elevation in the estuary mouth can reach 77 cm, depending on the considered scenario. It was also determined that floods are the main sediment transport driver along the estuary, intensifying the accretion processes. Furthermore, the sea-level rise reduces the amount of transported sediments to the coastal platform, increasing the erosion risk in this area and increasing the accretion inside the estuary. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-31 |
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://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176 10.32435/envsmoke/xibesymp.1 |
url |
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176 |
identifier_str_mv |
10.32435/envsmoke/xibesymp.1 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176/145 https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/176/253 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Environmental Smoke Institute |
publisher.none.fl_str_mv |
Environmental Smoke Institute |
dc.source.none.fl_str_mv |
Environmental Smoke; No. Special Issue (2021): X Iberian Symposium on the Hydrographic Minho River Basin; 1-6 Environmental Smoke; n. Special Issue (2021): X Simpósio Ibérico sobre a Bacia Hidrográfica do Rio Minho; 1-6 2595-5527 reponame:Environmental Smoke instname:Environmental Smoke instacron:ES |
instname_str |
Environmental Smoke |
instacron_str |
ES |
institution |
ES |
reponame_str |
Environmental Smoke |
collection |
Environmental Smoke |
repository.name.fl_str_mv |
Environmental Smoke - Environmental Smoke |
repository.mail.fl_str_mv |
smoke@environmentalsmoke.com.br |
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1797051134441947136 |