FN Archimer Export Format PT J TI Bottom and Suspended Sediment Backscatter Measurements in a Flume—Towards Quantitative Bed and Water Column Properties BT AF Van Dijk, Thaiënne A. G. P. Roche, Marc Lurton, Xavier Fezzani, Ridha Simmons, Stephen M. Gastauer, Sven Fietzek, Peer Mesdag, Chris Berger, Laurent Klein Breteler, Mark Parsons, Dan R. AS 1:1,2;2:3;3:4;4:5;5:6;6:7,8;7:9;8:1;9:5;10:10;11:6; FF 1:;2:;3:PDG-DFO-NSE-ASTI;4:PDG-DFO-NSE-ASTI;5:;6:;7:;8:;9:PDG-DFO-NSE-ASTI;10:;11:; C1 Department of Applied Geology and Geophysics, Deltares, 3584 BK Utrecht, The Netherlands Department of Earth Science and Environmental Change, University of Illinois at Urbana-Champaign, Champaign, IL 61801, USA Continental Shelf Service, FPS Economy, 1000 Brussels, Belgium Independent Researcher, 29280 Locmaria-Plouzane, France Institut Français de Recherche pour l’Exploitation de la Mer (IFREMER), 29280 Plouzane, France Energy and Environment Institute, University of Hull, Hull HU6 7RX, UK Thünen Institute for Sea Fisheries, 27572 Bremerhaven, Germany Scripps Institution of Oceanography, Integrated Oceanography, University of California, San Diego, CA 92037, USA Kongsberg Discovery, 22529 Hamburg, Germany Department of Coastal Structures and Waves, Deltares, 2629 HV Delft, The Netherlands C2 DELTARES, NETHERLANDS UNIV ILLINOIS, USA FPS ECONOMY, BELGIUM Independent Researcher, 29280 Locmaria-Plouzane, France IFREMER, FRANCE UNIV HULL, UK THUNEN INST SEA FISHERIES, GERMANY UNIV CALIF SAN DIEGO, USA KONGSBERG DISCOVERY, GERMANY DELTARES, NETHERLANDS SI BREST SE PDG-DFO-NSE-ASTI IN DOAJ IF 2,9 TC 0 UR https://archimer.ifremer.fr/doc/00885/99680/109729.pdf https://archimer.ifremer.fr/doc/00885/99680/109730.zip LA English DT Article DE ;multibeam backscatter;flume experiment;underwater habitat mapping;water column;suspended sediment plumes AB For health and impact studies of water systems, monitoring underwater environments is essential, for which multi-frequency single- and multibeam echosounders are commonly used state-of-the-art technologies. However, the current scarcity of sediment reference datasets of both bottom backscatter angular response and water column scattering hampers empirical data interpretation. Comprehensive reference data derived from measurements in a controlled environment should optimize the use of empirical backscatter data. To prepare for such innovative experiments, we conducted a feasibility experiment in the Delta Flume (Deltares, The Netherlands). Several configurations of sonar data were recorded of the flume floor and suspended sediment plumes. The results revealed that flume reverberation was sufficiently low and that the differential settling of fine-sand plumes in the water column was clearly detected. Following this successful feasibility test, future comprehensive experiments will feature multi-frequency multi-angle measurements on a variety of sediment types, additional scatterers and sediment plumes, resulting in reference datasets for an improved interpretation of underwater backscatter measurements for scientific observation and sustainable management. PY 2024 PD APR SO Journal Of Marine Science And Engineering SN 2077-1312 PU MDPI AG VL 12 IS 4 UT 001210652600001 DI 10.3390/jmse12040609 ID 99680 ER EF