Recorded data with EM2040 MBES, EK80 SBES and Aquascat system during the BSinFlume feasibility experiment in the Delta Flume, Deltares, Netherlands in 2020.

Multifrequency single- and multibeam echosounders are mature technologies for underwater mapping. However, the current scarcity of sediment reference datasets of both bottom backscatter angular response and water column scattering, hampers the generation of applicable information. Reference data derived from measurements in a controlled environment should optimize the use of empirical backscatter data for underwater observation and management. In order to prepare for such comprehensive and ground-breaking experiments, we conducted a feasibility experiment in the Delta Flume, Deltares, Netherlands. Multi-frequency single- and multibeam echosounder data of the flume floor and of fine-grained, in-water sand plumes were recorded. The results revealed that flume reverberation did not interfere significantly with bottom targets and that fine-sand plumes in the water column were clearly detected. Future comprehensive experiments will feature multi-frequency multi-angle measurements on a variety of sediment types, shell densities, interface roughnessess, and plumes of various sediment grain sizes, shapes and concentrations.

Multifrequency single- and multibeam echosounders are mature technologies for underwater mapping. However, the current scarcity of sediment reference datasets of both bottom backscatter angular response and water column scattering, hampers the generation of applicable information. Reference data derived from measurements in a controlled environment should optimize the use of empirical backscatter data for underwater observation and management. In order to prepare for such comprehensive and ground-breaking experiments, we conducted a feasibility experiment in the Delta Flume, Deltares, Netherlands. Multi-frequency single- and multibeam echosounder data of the flume floor and of fine-grained, in-water sand plumes were recorded. The results revealed that flume reverberation did not interfere significantly with bottom targets and that fine-sand plumes in the water column were clearly detected. Future comprehensive experiments will feature multi-frequency multi-angle measurements on a variety of sediment types, shell densities, interface roughnessess, and plumes of various sediment grain sizes, shapes and concentrations.

Disciplines

Environment

Keywords

Multibeam Echosounder, Single Beam Echosounder, Aquascat, Suspended sediment, Seafloor backscatter, Flume, Reverberation, Multifrequency, Reverberation

Location

52N, 52S, 4.382E, 4.382W

Devices

- Kongsberg EM2040

- Simrad EK80

- Aquascat

Data

FileSizeFormatProcessingAccess
EM2040C raw files with water column data
800 Mo.allRaw data
EK80
284 Mo.rawRaw data
Aquascat
480 KoNetCDFProcessed data
EM2040C Profils configurations
9 KoXLS, XLSX
EK80 configuration
9 KoXLS, XLSX
Aquascat configuration
9 KoXLS, XLSX
How to cite
Van Dijk Thaiënne, Roche Marc, Lurton Xavier, Fezzani Ridha, M. simmons Steve, Gastauer Sven, Fietzek Peer, Mesdag Chris, Berger Laurent, Klein Breteler Mark, Parsons Daniel (2020). Recorded data with EM2040 MBES, EK80 SBES and Aquascat system during the BSinFlume feasibility experiment in the Delta Flume, Deltares, Netherlands in 2020. SEANOE. https://doi.org/10.17882/93014

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