A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers

The determination of critical shear stresses is fundamental to bedload sediment transport prediction in gravel-bed rivers. Due to the heterogeneous shape and arrangement of the individual clasts in a riverbed, critical shear stresses typically show a large spatial variability, which is not adequatel...

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Autores: Vázquez-Tarrío, Daniel, Carrero‐Carralero, Estrella, López Alonso, Raúl, Ville, Fanny, Vericat Querol, Damià, Batalla, Ramon J.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/466634
Acesso em linha:https://doi.org/10.1029/2024JF007695
https://hdl.handle.net/10459.1/466634
Access Level:acceso embargado
Palavra-chave:Gravel-bed river
Mountain rivers
Fluvial geomorphology
Geomorfología fluvial
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dc.title.none.fl_str_mv A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
title A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
spellingShingle A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
Vázquez-Tarrío, Daniel
Gravel-bed river
Mountain rivers
Fluvial geomorphology
Geomorfología fluvial
title_short A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
title_full A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
title_fullStr A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
title_full_unstemmed A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
title_sort A field‐based estimation of the variability of particle entrainment in coarse‐bed rivers
dc.creator.none.fl_str_mv Vázquez-Tarrío, Daniel
Carrero‐Carralero, Estrella
López Alonso, Raúl
Ville, Fanny
Vericat Querol, Damià
Batalla, Ramon J.
author Vázquez-Tarrío, Daniel
author_facet Vázquez-Tarrío, Daniel
Carrero‐Carralero, Estrella
López Alonso, Raúl
Ville, Fanny
Vericat Querol, Damià
Batalla, Ramon J.
author_role author
author2 Carrero‐Carralero, Estrella
López Alonso, Raúl
Ville, Fanny
Vericat Querol, Damià
Batalla, Ramon J.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Gravel-bed river
Mountain rivers
Fluvial geomorphology
Geomorfología fluvial
topic Gravel-bed river
Mountain rivers
Fluvial geomorphology
Geomorfología fluvial
description The determination of critical shear stresses is fundamental to bedload sediment transport prediction in gravel-bed rivers. Due to the heterogeneous shape and arrangement of the individual clasts in a riverbed, critical shear stresses typically show a large spatial variability, which is not adequately captured by the reach-averaged description followed in common studies. In this regard, there is a general paucity of field data on this spatial variability of the critical shear stress, largely due to the lack of a standardized measurement method. In an attempt to fill this gap, we propose a field-based workflow to estimate the frequency distribution of dimensionless critical shear stress (also named critical Shields number), which is based on the measurement of a series of variables related to the position, orientation and resistance to motion of individual clasts in a gravel-bed river, combined with a probabilistic approximation to drag and lift coefficients. Following this workflow, the patch-scale variability of particle incipient-motion conditions was determined in a gravel bar of the Upper Cinca River, Spain. The results are consistent with what is known about sediment entrainment in gravel-bed rivers. We consider this method to have great potential to advance our understanding of particle initiation of motion in gravel-bed rivers as it provides valuable systematic field information.
publishDate 2024
dc.date.none.fl_str_mv 2024
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://doi.org/10.1029/2024JF007695
https://hdl.handle.net/10459.1/466634
url https://doi.org/10.1029/2024JF007695
https://hdl.handle.net/10459.1/466634
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104979RB-I00
Reproducció del document publicat a: https://doi.org/10.1029/2024JF007695
Journal Of Geophysical Research-Earth Surface, 2024, vol. 129, num. 10
dc.rights.none.fl_str_mv cc-by-nc,(c) Vázquez-Tarrío et al., 2024
info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc/4.0/
rights_invalid_str_mv cc-by-nc,(c) Vázquez-Tarrío et al., 2024
https://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling A field‐based estimation of the variability of particle entrainment in coarse‐bed riversVázquez-Tarrío, DanielCarrero‐Carralero, EstrellaLópez Alonso, RaúlVille, FannyVericat Querol, DamiàBatalla, Ramon J.Gravel-bed riverMountain riversFluvial geomorphologyGeomorfología fluvialThe determination of critical shear stresses is fundamental to bedload sediment transport prediction in gravel-bed rivers. Due to the heterogeneous shape and arrangement of the individual clasts in a riverbed, critical shear stresses typically show a large spatial variability, which is not adequately captured by the reach-averaged description followed in common studies. In this regard, there is a general paucity of field data on this spatial variability of the critical shear stress, largely due to the lack of a standardized measurement method. In an attempt to fill this gap, we propose a field-based workflow to estimate the frequency distribution of dimensionless critical shear stress (also named critical Shields number), which is based on the measurement of a series of variables related to the position, orientation and resistance to motion of individual clasts in a gravel-bed river, combined with a probabilistic approximation to drag and lift coefficients. Following this workflow, the patch-scale variability of particle incipient-motion conditions was determined in a gravel bar of the Upper Cinca River, Spain. The results are consistent with what is known about sediment entrainment in gravel-bed rivers. We consider this method to have great potential to advance our understanding of particle initiation of motion in gravel-bed rivers as it provides valuable systematic field information.This research benefitted from the methods and outcomes of the MorphHab research project (PID2019-104979RB-I00/AEI/10.13039/501100011033, Ministry of Science, Innovation and Universities (MICINN), Government of Spain). The work by the first author is also part of the 2023–2026 grant signed between the Spanish Directorate General for Water (DGA-MITERD; Government of Spain) and the Spanish National Research Council (CSIC-Ministry of Science, Innovation and Universities), which includes action “Sedimentary Morphodynamics” (20233TE012: IGME-CSIC; Tarquín 2 Project). First author also had the support of the French Embassy in Spain (CONTSED project). The authors also acknowledge the support of the Economy and Knowledge Department of the Catalan Government through the Consolidated Research Group “Fluvial Dynamics Research Group”—RIUS [2021SGR-01114] and the CERCA Programme. Fanny Ville has a grant (BES-2017-081850) funded by the Ministry of Economy, Industry and Competitiveness (MINECO), Government of Spain. Estrella Carrero-Carralero has a PhD scholarship awarded by the University of Lleida. Damián Vericat is funded through the Serra Húnter Programme, Government of Catalonia. We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI). We are also very thankful to Elowyn Yager for her invaluable advice at the start of this research project. We would also like to thank editor in chief (Amy East), associate editor (Andrew Wilcox) and three anonymous reviewers for their remarks and suggestions, which helped us to improve the final version of the manuscript. Finally, the first author would like to dedicate a few words to the memory of R.Y.García: wish you were still here my friend, you have gone too early.American Geophysical Union2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1029/2024JF007695https://hdl.handle.net/10459.1/466634reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104979RB-I00Reproducció del document publicat a: https://doi.org/10.1029/2024JF007695Journal Of Geophysical Research-Earth Surface, 2024, vol. 129, num. 10cc-by-nc,(c) Vázquez-Tarrío et al., 2024info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc/4.0/oai:repositori.udl.cat:10459.1/4666342026-06-24T12:42:17Z
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