On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis

This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by- nc-nd/4.0/ ).

Detalles Bibliográficos
Autores: Martín Llanes, Guillermo, López-Ruiz, Alejandro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/175023
Acceso en línea:https://hdl.handle.net/11441/175023
https://doi.org/10.1016/j.ocemod.2025.102552
Access Level:acceso abierto
Palabra clave:Dredging
Tidal propagation
Salt intrusion
Basin management
Estuary
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spelling On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysisMartín Llanes, GuillermoLópez-Ruiz, AlejandroDredgingTidal propagationSalt intrusionBasin managementEstuaryThis is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by- nc-nd/4.0/ ).The need for efficient maritime transportation in estuaries has led to the development of diverse dredging strategies to accommodate vessels with deep drafts. Most recent studies assessing the environmental impacts of channel deepening use advanced, tailored models to simulate the long-term response to historical bathymetric changes in estuaries worldwide. However, these models are often time-consuming and highly specific to local conditions, limiting the broader applicability of their results. In addition, a common limitation is the significant time gap between the bathymetric data used, often exceeding 100 years. This makes it challenging to quantify the effects of isolated deepening operations, which is essential for understanding the influence of human intervention on estuarine dynamics. To overcome this limitation while ensuring efficient and adaptable modelling, this paper presents a three-dimensional idealised model (Delft3D) to quantify the short-term, e.g., weeks, hydrodynamic and salinity response to dredging operations in micro-meso tidal, well-mixed estuaries. Implications on channel operativity are also discussed. The numerical experiments examine variations in both channel depth and dredging length. Key findings suggest that dredging length is critical in the estuarine response. Specifically, dredging length has a greater influence on tidal amplification than channel depth. Changes in the flow structure are primarily driven by changes in the barotropic pressure gradient and bed shear forces, which vary spatially along the estuary, defining three distinct regions of behaviour. In addition, salt intrusion increases linearly with channel depth and becomes particularly sensitive to dredging length in shorter operations. Regarding basin management, results reveal that landward operativity is compromised by dredging in the lower river.ElsevierIngeniería Aeroespacial y Mecánica de FluidosMinisterio de Ciencia e Innovación (MICIN). EspañaConsejería de Transformación Económica, Industria, Conocimiento y Universidades. Junta de Andalucía2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/175023https://doi.org/10.1016/j.ocemod.2025.102552reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésOcean Modelling, 196, 102552.PID2021-125895OA-I00PREDOC_00549https://www.sciencedirect.com/science/article/pii/S1463500325000551info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1750232026-06-17T12:51:07Z
dc.title.none.fl_str_mv On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
title On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
spellingShingle On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
Martín Llanes, Guillermo
Dredging
Tidal propagation
Salt intrusion
Basin management
Estuary
title_short On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
title_full On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
title_fullStr On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
title_full_unstemmed On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
title_sort On the assessment of channel deepening impacts in micro-meso tidal estuaries: A systematic analysis
dc.creator.none.fl_str_mv Martín Llanes, Guillermo
López-Ruiz, Alejandro
author Martín Llanes, Guillermo
author_facet Martín Llanes, Guillermo
López-Ruiz, Alejandro
author_role author
author2 López-Ruiz, Alejandro
author2_role author
dc.contributor.none.fl_str_mv Ingeniería Aeroespacial y Mecánica de Fluidos
Ministerio de Ciencia e Innovación (MICIN). España
Consejería de Transformación Económica, Industria, Conocimiento y Universidades. Junta de Andalucía
dc.subject.none.fl_str_mv Dredging
Tidal propagation
Salt intrusion
Basin management
Estuary
topic Dredging
Tidal propagation
Salt intrusion
Basin management
Estuary
description This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by- nc-nd/4.0/ ).
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/175023
https://doi.org/10.1016/j.ocemod.2025.102552
url https://hdl.handle.net/11441/175023
https://doi.org/10.1016/j.ocemod.2025.102552
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Ocean Modelling, 196, 102552.
PID2021-125895OA-I00
PREDOC_00549
https://www.sciencedirect.com/science/article/pii/S1463500325000551
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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