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Monitoring the Topography of a Dynamic Tidal Inlet Using UAV Imagery

hal.structure.identifierLIttoral ENvironnement et Sociétés [LIENSs]
dc.contributor.authorLONG, Nathalie
hal.structure.identifierLIttoral ENvironnement et Sociétés [LIENSs]
dc.contributor.authorMILLESCAMPS, Bastien
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGUILLOT, Benoit
hal.structure.identifierLIttoral ENvironnement et Sociétés [LIENSs]
dc.contributor.authorPOUGET, Frédéric
hal.structure.identifierLIttoral ENvironnement et Sociétés [LIENSs]
dc.contributor.authorBERTIN, Xavier
dc.date.accessioned2024-05-14T13:03:59Z
dc.date.available2024-05-14T13:03:59Z
dc.date.created2015-12-31
dc.date.issued2016-05-06
dc.identifier.issn2072-4292
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199825
dc.description.abstractEnUnmanned Aerial Vehicles (UAVs) are being increasingly used to monitor topographic changes in coastal areas. Compared to Light Detection And Ranging (LiDAR) data or Terrestrial Laser Scanning data, this solution is low-cost and easy to use, while allowing the production of a Digital Surface Model (DSM) with a similar accuracy. Three campaigns were carried out within a three-month period at a lagoon-inlet system (Bonne-Anse Bay, La Palmyre, France), with a flying wing (eBee) combined with a digital camera. Ground Control Points (GCPs), surveyed by the Global Navigation Satellite System (GNSS) and post-processed by differential correction, allowed georeferencing DSMs. Using a photogrammetry process (Structure From Motion algorithm), DSMs and orthomosaics were produced. The DSM accuracy was assessed against the ellipsoidal height of a GNSS profile and Independent Control Points (ICPs) and the root mean square discrepancies were about 10 and 17 cm, respectively. Compared to traditional topographic surveys, this solution allows the accurate representation of bedforms with a wavelength of the order of 1 m and a height of 0.1 m. Finally, changes identified between both main campaigns revealed erosion/accretion areas and the progradation of a sandspit. These results open new perspectives to validate detailed morphological predictions or to parameterize bottom friction in coastal numerical models.
dc.description.sponsorshipMorphoDYNAmique des embouchures tidales: MOdélisation numérique 3D et impacts sur la circulation des polluants. - ANR-12-JS06-0008
dc.language.isoen
dc.publisherMDPI
dc.subject.enUAV photogrammetry
dc.subject.encoastal monitoring
dc.subject.entidal inlet
dc.subject.ensandspit
dc.title.enMonitoring the Topography of a Dynamic Tidal Inlet Using UAV Imagery
dc.typeArticle de revueen_US
dc.identifier.doi10.3390/rs8050387
dc.subject.halSciences de l'Homme et Société/Etudes de l'environnement
dc.subject.halSciences de l'Homme et Société/Géographie
bordeaux.journalRemote Sensingen_US
bordeaux.volume8
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue387
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
bordeaux.import.sourcehal
hal.identifierhalshs-01340509
hal.version1
hal.popularnon
hal.audienceInternationale
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote%20Sensing&rft.date=2016-05-06&rft.volume=8&rft.issue=387&rft.eissn=2072-4292&rft.issn=2072-4292&rft.au=LONG,%20Nathalie&MILLESCAMPS,%20Bastien&GUILLOT,%20Benoit&POUGET,%20Fr%C3%A9d%C3%A9ric&BERTIN,%20Xavier&rft.genre=article


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