Relating side scan sonar backscatter data to geotechnical properties for the investigation of surficial seabed sediments

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dc.contributor.authorSmith, Lizen
dc.contributor.authorStark, Ninaen
dc.contributor.authorJaber, Reemen
dc.date.accessioned2023-06-22T13:12:42Zen
dc.date.available2023-06-22T13:12:42Zen
dc.date.issued2023-06en
dc.description.abstractSide scan sonar is a common tool for seafloor imaging and surveying due its efficiency and high resolution. The backscatter information from side scan sonar enables to identify sediment types and seabed roughness, often used to study sediment dynamics. Theory suggests that side scan sonar backscatter can be correlated to the geotechnical properties of the seabed surface. This could enhance the prediction of erodibility and efficiency of seabed sediment characterization, considering that side scan sonar can offer large spatial coverage in a short time. In this study, high-frequency (1000 kHz) side scan sonar backscatter data, sediment samples, and in-situ seabed strength profiles were collected of the seabed surface at ten locations. Statistical analysis of the backscatter data compared with geotechnical data showed trends between mean backscatter, soil strength, and textural sediment properties. Generally, mean backscatter increased when sediment strength and mean grain size increased and when water content and fines content decreased. However, roughness from bedforms, the presence of oysters, shell hash as well as variations in water content (i.e., porosity) of the seafloor heavily influenced the backscatter and sometimes masked any relationships with the strength properties directly.en
dc.description.notesAcknowledgementsThe author would like to thank Grace Massey, Julie Paprocki, Albin Rosado, Tom Lippmann, and John Hunt for field data collection. The author would like to thank Nick Brilli and Julie Paprocki for their help in processing the PFFP data. This work was funded by the Naval Research Lab through grant N00173-19-1-G018, the National Science Foundation through grant CMMI-1820848, and the Office of Naval Research through grant N00014-18-1-2435. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the sponsors.en
dc.description.sponsorshipNaval Research Lab [N00173-19-1-G018]; National Science Foundation [CMMI-1820848]; Office of Naval Research [N00014-18-1-2435]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1007/s00367-023-00750-5en
dc.identifier.eissn1432-1157en
dc.identifier.issn0276-0460en
dc.identifier.issue2en
dc.identifier.other9en
dc.identifier.urihttp://hdl.handle.net/10919/115483en
dc.identifier.volume43en
dc.language.isoenen
dc.publisherSpringeren
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectgrain-size distributionen
dc.subjectfrictionen
dc.subjectmodelen
dc.subjectpropagationen
dc.subjectscatteringen
dc.subjectdensityen
dc.subjectstressen
dc.subjectangleen
dc.titleRelating side scan sonar backscatter data to geotechnical properties for the investigation of surficial seabed sedimentsen
dc.title.serialGeo-Marine Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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