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Supplementary file 1_Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders.pdf

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Názov: Supplementary file 1_Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders.pdf
Autori: Ridha Fezzani, Laurent Berger, Naig Le Bouffant, Xavier Lurton
Rok vydania: 2025
Predmety: Photogrammetry and Remote Sensing, multibeam, multispectral, calibration, single-beam, angular response curves, backscatter
Popis: This study presents a detailed analysis of Angular Response Curves (ARC) extracted from a multi-spectral seabed backscatter dataset utilizing both calibrated single-beam (SBES) and multibeam echosounders (MBES). Five calibrated SBES transducers were tilted from −9° to 70° to measure ARC at different discrete frequencies ranges from 35 kHz to 440 kHz (three to four frequencies per transducer). Additionally, three frequencies −200 kHz, 300 kHz and 400 kHz - were used with the MBES. Experimental data were collected in the Bay of Concarneau, located on the French Northwest coast, across seven different ground-truthed sediment types. The study aims to investigate the effects of frequency and pulse length on ARC shape and intensity. Furthermore, a novel method for estimating seabed angular backscatter from standard SBES volume backscatter strength (Sv) is used. A key aspect of this research is the intercalibration of the multibeam and singlebeam systems to ensure consistency and reliability in MBES backscatter measurements. These findings contribute to a better understanding of acoustic wave interactions with sediment properties across different wavelengths and pulse durations, ultimately improving seabed characterization accuracy.
Druh dokumentu: dataset
Jazyk: unknown
DOI: 10.3389/frsen.2025.1574996.s001
Dostupnosť: https://doi.org/10.3389/frsen.2025.1574996.s001
https://figshare.com/articles/dataset/Supplementary_file_1_Multispectral_backscatter-based_characterization_of_seafloor_sediments_using_calibrated_multibeam_and_tilted_single-beam_echosounders_pdf/29476070
Rights: CC BY 4.0
Prístupové číslo: edsbas.15DF4181
Databáza: BASE
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  – Url: https://doi.org/10.3389/frsen.2025.1574996.s001#
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  Data: Supplementary file 1_Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders.pdf
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Ridha+Fezzani%22">Ridha Fezzani</searchLink><br /><searchLink fieldCode="AR" term="%22Laurent+Berger%22">Laurent Berger</searchLink><br /><searchLink fieldCode="AR" term="%22Naig+Le+Bouffant%22">Naig Le Bouffant</searchLink><br /><searchLink fieldCode="AR" term="%22Xavier+Lurton%22">Xavier Lurton</searchLink>
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  Data: 2025
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  Data: <searchLink fieldCode="DE" term="%22Photogrammetry+and+Remote+Sensing%22">Photogrammetry and Remote Sensing</searchLink><br /><searchLink fieldCode="DE" term="%22multibeam%22">multibeam</searchLink><br /><searchLink fieldCode="DE" term="%22multispectral%22">multispectral</searchLink><br /><searchLink fieldCode="DE" term="%22calibration%22">calibration</searchLink><br /><searchLink fieldCode="DE" term="%22single-beam%22">single-beam</searchLink><br /><searchLink fieldCode="DE" term="%22angular+response+curves%22">angular response curves</searchLink><br /><searchLink fieldCode="DE" term="%22backscatter%22">backscatter</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: This study presents a detailed analysis of Angular Response Curves (ARC) extracted from a multi-spectral seabed backscatter dataset utilizing both calibrated single-beam (SBES) and multibeam echosounders (MBES). Five calibrated SBES transducers were tilted from −9° to 70° to measure ARC at different discrete frequencies ranges from 35 kHz to 440 kHz (three to four frequencies per transducer). Additionally, three frequencies −200 kHz, 300 kHz and 400 kHz - were used with the MBES. Experimental data were collected in the Bay of Concarneau, located on the French Northwest coast, across seven different ground-truthed sediment types. The study aims to investigate the effects of frequency and pulse length on ARC shape and intensity. Furthermore, a novel method for estimating seabed angular backscatter from standard SBES volume backscatter strength (Sv) is used. A key aspect of this research is the intercalibration of the multibeam and singlebeam systems to ensure consistency and reliability in MBES backscatter measurements. These findings contribute to a better understanding of acoustic wave interactions with sediment properties across different wavelengths and pulse durations, ultimately improving seabed characterization accuracy.
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  Data: 10.3389/frsen.2025.1574996.s001
– Name: URL
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  Data: https://doi.org/10.3389/frsen.2025.1574996.s001<br />https://figshare.com/articles/dataset/Supplementary_file_1_Multispectral_backscatter-based_characterization_of_seafloor_sediments_using_calibrated_multibeam_and_tilted_single-beam_echosounders_pdf/29476070
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  Data: edsbas.15DF4181
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        Value: 10.3389/frsen.2025.1574996.s001
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      – SubjectFull: Photogrammetry and Remote Sensing
        Type: general
      – SubjectFull: multibeam
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      – SubjectFull: backscatter
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      – TitleFull: Supplementary file 1_Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders.pdf
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            NameFull: Ridha Fezzani
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            NameFull: Laurent Berger
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              Y: 2025
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