ALGORITHMS FOR CLEANING DATA RECORDED BY MULTIBEAM ECHOSOUNDER

2019 ◽  
Author(s):  
Artur Makar
Keyword(s):  
Multibeam Echosounder

scholarly journals Suspended sediment concentration field quantified from a calibrated MultiBeam EchoSounder

2021 ◽  
Vol 180 ◽  
pp. 108107
Author(s):  
Guillaume Fromant ◽  
Nicolas Le Dantec ◽  
Yannick Perrot ◽  
France Floc'h ◽  
Anne Lebourges-Dhaussy ◽  
...  
Keyword(s):  
Suspended Sediment ◽  
Suspended Sediment Concentration ◽  
Concentration Field ◽  
Sediment Concentration ◽  
Multibeam Echosounder

scholarly journals Multibeam Echosounder With Orthogonal Waveforms: Feasibility and Potential Benefits

2021 ◽  
pp. 1-16
Author(s):  
Antoine Blachet ◽  
Andreas Austeng ◽  
Joaquin Aparicio ◽  
Alan J. Hunter ◽  
Roy Edgar Hansen
Keyword(s):  
Multibeam Echosounder ◽  
Potential Benefits

scholarly journals High‐frequency multibeam echosounder classification for rapid environmental assessment

2008 ◽  
Vol 123 (5) ◽  
pp. 3622-3622 ◽  
Author(s):  
Kerstin Siemes ◽  
Mirjam Snellen ◽  
Dick G. Simons ◽  
Jean‐Pierre Hermand ◽  
Matthias Meyer ◽  
...  
Keyword(s):  
Environmental Assessment ◽  
High Frequency ◽  
Multibeam Echosounder

scholarly journals DETEKSI PIPA BAWAH LAUT DENGAN DATA MULTIBEAM ECHOSOUNDER (Studi Kasus: Muara Bekasi)

Geoid ◽  
2018 ◽  
Vol 13 (2) ◽  
pp. 115
Author(s):  
Danar Guruh Pratomo ◽  
Khomsin Khomsin ◽  
Dody Pambudhi
Keyword(s):  
Multibeam Echosounder

scholarly journals Mapping of Cold-Water Coral Carbonate Mounds Based on Geomorphometric Features: An Object-Based Approach

2017 ◽  
Author(s):  
Markus Diesing ◽  
Terje Thorsnes
Keyword(s):  
Spatial Planning ◽  
Cold Water ◽  
Spatial Prediction ◽  
Marine Spatial Planning ◽  
Carbonate Mounds ◽  
Multibeam Echosounder ◽  
Continental Shelves ◽  
Object Based ◽  
Predicted Probability ◽  
Water Coral

Cold-water coral reefs are rich, yet fragile ecosystems found in colder oceanic waters. Knowledge of their spatial distribution on continental shelves, slopes, seamounts and ridge systems is vital for marine spatial planning and conservation. Cold-water corals frequently form conspicuous carbonate mounds of varying sizes, which are identifiable from multibeam echosounder bathymetry and derived geomorphometric attributes. However, the often large number of mounds makes manual interpretation and mapping a tedious process. We present a methodology that combines image segmentation and random forest spatial prediction with the aim to derive maps of carbonate mounds and an associated measure of confidence. We demonstrate our method based on multibeam echosounder data from Iverryggen on the mid-Norwegian shelf. We identified the image-object mean planar curvature as the most important predictor. The presence and absence of carbonate mounds is mapped with high accuracy (overall accuracy = 84.4%, sensitivity = 0.827 and specificity = 0.866). Spatially-explicit confidence in the predictions is derived from the predicted probability and whether the predictions are within or outside the modelled range of values and is generally high. We plan to apply the showcased method to other areas of the Norwegian continental shelf and slope where MBES data have been collected with the aim to provide crucial information for marine spatial planning.

scholarly journals Analysis of seafloor backscatter strength dependence on the survey azimuth using multibeam echosounder data

2017 ◽  
Vol 39 (1-2) ◽  
pp. 183-203 ◽  
Author(s):  
Xavier Lurton ◽  
Dimitrios Eleftherakis ◽  
Jean-Marie Augustin
Keyword(s):  
Multibeam Echosounder ◽  
Strength Dependence ◽  
Seafloor Backscatter

scholarly journals A comparison of bathymetry mapped with the Simrad ME70 multibeam echosounder operated in bathymetric and fisheries modes

2010 ◽  
Vol 67 (6) ◽  
pp. 1301-1309 ◽  
Author(s):  
George R. Cutter ◽  
Laurent Berger ◽  
David A. Demer
Keyword(s):  
Software Development ◽  
Data Processing ◽  
Bay Of Biscay ◽  
Marine Science ◽  
Dual Use ◽  
Detection Range ◽  
Multibeam Echosounder ◽  
Acoustic Backscattering ◽  
Bathymetric Data ◽  
Phase Data

Abstract Cutter, G. R. Jr, Berger, L., and Demer, D. A. 2010. A comparison of bathymetry mapped with the Simrad ME70 multibeam echosounder operated in bathymetric and fisheries modes. – ICES Journal of Marine Science, 67: 1301–1309. The Simrad ME70 multibeam echosounder was designed for quantitative fisheries research and is currently installed on Ifremer's fishery survey vessel (FSV) “Thalassa” and each of the new, quiet, NOAA FSVs. The ME70 has configurable beams and transmits in the range 70–120 kHz to provide calibrated, acoustic-backscattering data throughout the detection range (fisheries mode, FM). With optional hardware and software, the ME70 can also collect soundings that potentially meet International Hydrographic Organization's S–44 Order 1 standards (bathymetric mode, BM). Furthermore, with custom algorithms and software, bathymetric data can be obtained from the ME70 operating in FM, and volume backscatter can be sampled from the ME70 operating in BM. This flexibility allows data to be concurrently collected on fish and their seabed habitat. A method is described for processing the echo amplitude and phase data from multiple split-beams formed in FM to estimate seabed range, slope, and roughness. The resulting bathymetry is compared with that collected with the ME70 operating in BM in the same area of the Bay of Biscay. A proposal is made for software development to facilitate dual-use data processing.

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