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  2. Engineer Research and Development Center (ERDC)
  3. Coastal and Hydraulics Laboratory (CHL) - (before 9/1981 - present)
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Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/41440
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dc.contributor.authorBrodie, Katherine L.-
dc.contributor.authorBruder, Brittany L.-
dc.contributor.authorSlocum, Richard K.-
dc.contributor.authorSpore, Nicholas J.-
dc.date.accessioned2021-08-09T15:09:56Z-
dc.date.available2021-08-09T15:09:56Z-
dc.date.issued2021-08-
dc.identifier.govdocERDC/CHL MP-21-3-
dc.identifier.urihttps://hdl.handle.net/11681/41440-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/41440-
dc.descriptionMiscellaneous Paperen_US
dc.description.abstractA low-cost multicamera Unmanned Aircraft System (UAS) is used to simultaneously estimate open-coast topography and bathymetry from a single longitudinal coastal flight. The UAS combines nadir and oblique imagery to create a wide field of view (FOV), which enables collection of mobile, long dwell timeseries of the littoral zone suitable for structure-from motion (SfM), and wave speed inversion algorithms. Resultant digital surface models (DSMs) compare well with terrestrial topographic lidar and bathymetric survey data at Duck, NC, USA, with root-mean-square error (RMSE)/bias of 0.26/–0.05 and 0.34/–0.05 m, respectively. Bathymetric data from another flight at Virginia Beach, VA, USA, demonstrates successful comparison (RMSE/bias of 0.17/0.06 m) in a secondary environment. UAS-derived engineering data products, total volume profiles and shoreline position, were congruent with those calculated from traditional topo-bathymetric surveys at Duck. Capturing both topography and bathymetry within a single flight, the presented multicamera system is more efficient than data acquisition with a single camera UAS; this advantage grows for longer stretches of coastline (10 km). Efficiency increases further with an on-board Global Navigation Satellite System–Inertial Navigation System (GNSS-INS) to eliminate ground control point (GCP) placement. The Appendix reprocesses the Virginia Beach flight with the GNSS–INS input and no GCPs.en_US
dc.description.sponsorshipUnited States. Army. Corps of Engineers.en_US
dc.format.extent26 pages / 2.93 MB-
dc.format.mediumPDF/A-
dc.language.isoen_USen_US
dc.publisherCoastal and Hydraulics Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesMiscellaneous Paper (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL MP-21-3-
dc.relation.isversionofBrodie, Katherine L., Brittany L. Bruder, Richard K. Slocum, and Nicholas J. Spore. "Simultaneous mapping of coastal topography and bathymetry from a lightweight multicamera uas." IEEE Transactions on Geoscience and Remote Sensing 57, no. 9 (2019): 6844-6864. https://ieeexplore.ieee.org/abstract/document/8726410-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectCoastal mappingen_US
dc.subjectMultiview stereo (MVS)en_US
dc.subjectNearshore morphologyen_US
dc.subjectRemote sensingen_US
dc.subjectStructure from motion (SfM)en_US
dc.subjectUnmanned Aircraft Systems (UAS)en_US
dc.titleSimultaneous mapping of coastal topography and bathymetry from a lightweight multicamera UASen_US
dc.typeReporten_US
Appears in Collections:Miscellaneous Paper

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