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Combining SfM Photogrammetry and Terrestrial Laser Scanning to Assess Event-Scale Sediment Budgets along a Gravel-Bed Ephemeral Stream

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Combining SfM Photogrammetry and Terrestrial Laser Scanning to Assess Event-Scale Sediment Budgets along a Gravel-Bed Ephemeral Stream

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dc.contributor.author Conesa-García, Carmelo es_ES
dc.contributor.author Puig-Mengual, Carlos es_ES
dc.contributor.author Riquelme, Adrián es_ES
dc.contributor.author Tomás, Roberto es_ES
dc.contributor.author Martinez-Capel, Francisco es_ES
dc.contributor.author García-Lorenzo, Rafael es_ES
dc.contributor.author Pastor, José L. es_ES
dc.contributor.author Pérez-Cutillas, Pedro es_ES
dc.contributor.author Cano Gonzalez, Miguel es_ES
dc.date.accessioned 2021-11-05T12:51:55Z
dc.date.available 2021-11-05T12:51:55Z
dc.date.issued 2020-11 es_ES
dc.identifier.issn 2072-4292 es_ES
dc.identifier.uri http://hdl.handle.net/10251/176145
dc.description.abstract [EN] Stream power represents the rate of energy expenditure along a stream reach and can be calculated using topographic data acquired via structure-from-motion (SfM) photogrammetry and terrestrial laser scanning (TLS). This study sought to quantitatively relate morphological adjustments in the Azohia Rambla, a gravel-bed ephemeral stream in southeastern Spain, to stream power (omega), critical power (omega(c)), and energy gradients ( partial differential omega/ partial differential s), along different reference channel reaches of 200 to 300 m in length. High-resolution digital terrain models (HRDTMs), combined with ortophotographs and point clouds from 2018, 2019, and 2020, and ground-based surveys, were used to estimate the spatial variability of morphological sediment budgets and to assess channel bed mobility during the study period at different spatial scales: reference channel reaches (RCRs), pilot bed survey areas (PBSAs), and representative geomorphic units (RGUs). The optimized complementary role of the SfM technique and terrestrial laser scanning allowed the generation of accurate and reliable HRDTMs, upon which a 1-D hydrodynamic model was calibrated and sediment budgets calculated. The resulting high-resolution maps allowed a spatially explicit analysis of stream power and transport efficiency in relation to volumes of erosion and deposition in the RCR and PBSA. In addition, net incision or downcutting and vertical sedimentary accretion were monitored for each flood event in relation to bedforms and hydraulic variables. Sediment sources and sinks and bed armoring processes showed different trends according to the critical energy and stream power gradient, which were verified from field observations. During flows exceeding bankfull discharges (between 18 and 24 m(3) s(-1) according to channel reach), significant variations in partial differential omega/ partial differential s values and omega/omega(c) ratios (e.g., -15 < partial differential omega/ partial differential s < 15 Wm(-3); omega/omega(c) > 2 for a peak discharge of 31 m(3) s(-1)) were associated with a large amount of bedload mobilized upstream and vertical accretion along the middle reach (average rise height of 0.20 to 0.35 m for the same event). By contrast, more moderate peak flows (<= 10 m(3) s(-1)) only produced minor changes resulting in surface washing, selective transport, and local bed scouring. es_ES
dc.description.sponsorship This research was funded by ERDF/Spanish Ministry of Science, Innovation and Universities-State Research Agency/Project CGL2017-84625-C2-1-R (CCAMICEM); State Program for Research, Development and Innovation Focused on the Challenges of Society, the Spanish Ministry of Economy and Competitiveness (MINECO) and EU FEDER under Project TEC2017-85244-C2-1-P and by the University of Alicante (vigrob-157 and GRE18-05). es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Remote Sensing es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject SfM photogrammetry es_ES
dc.subject Terrestrial laser scanning es_ES
dc.subject Stream power es_ES
dc.subject Morphological sediment budget es_ES
dc.subject Bedforms es_ES
dc.subject Gravel-bed ephemeral channel es_ES
dc.subject Southeastern Spain es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title Combining SfM Photogrammetry and Terrestrial Laser Scanning to Assess Event-Scale Sediment Budgets along a Gravel-Bed Ephemeral Stream es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/rs12213624 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI//TEC2017-85244-C2-1-P//TELEDETECCION MULTI-SENSOR Y MULTI-ESCALA: SENSORES Y APLICACIONES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UA//VIGROB-157/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UA//GRE18-05/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI//CGL2017-84625-C2-1-R//RESPUESTA MORFOLOGICA Y SISTEMICA AL CAMBIO CLIMATICO EN CAUCES EFIMEROS MEDITERRANEOS: DINAMICA, RESILIENCIA Y PROPUESTAS DE ACTUACION/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation Conesa-García, C.; Puig-Mengual, C.; Riquelme, A.; Tomás, R.; Martinez-Capel, F.; García-Lorenzo, R.; Pastor, JL.... (2020). Combining SfM Photogrammetry and Terrestrial Laser Scanning to Assess Event-Scale Sediment Budgets along a Gravel-Bed Ephemeral Stream. Remote Sensing. 12(21):1-27. https://doi.org/10.3390/rs12213624 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/rs12213624 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 27 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.description.issue 21 es_ES
dc.relation.pasarela S\423087 es_ES
dc.contributor.funder Universidad de Alicante es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder European Regional Development Fund es_ES


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