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TitleCCGS Louis S. St. Laurent 2019 expedition: multibeam mapping and sub-bottom profiling of Northeast Newfoundland Slope, Labrador Sea
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKostylev, V E; King, G; Manning, D; Meslin, P; Graham, S; Nunn, S; Levy, D; Fizzard, J
SourceGeological Survey of Canada, Open File 8841, 2021, 75 pages, Open Access logo Open Access
LinksExpedition Database - Base de données d'expédition
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
ProvinceNewfoundland and Labrador; Eastern offshore region
AreaNortheast Newfoundland Slope; Labrador Sea
Lat/Long WENS -50.7500 -48.5000 52.5000 50.0000
Subjectsmarine geology; surficial geology/geomorphology; geophysics; Nature and Environment; Science and Technology; continental margins; continental slope; bathymetry; geophysical surveys; acoustic surveys, marine; side-scan sonar; in-field instrumentation; CCGS Louis S. St. Laurent 2019 Expedition; Orphan Basin; Orphan Spur; cumulative effects
Illustrationslocation maps; geoscientific sketch maps; photographs; tables; schematic diagrams; geophysical profiles
ProgramMarine Geoscience for Marine Spatial Planning
Released2021 12 10
Summary(Plain Language Summary, not published)
The objective of the CCGS Louis S. St. Laurent 2019 expedition was to carry acoustic survey of seabed along Northeast Newfoundland shelf and slope in order to collect high-quality bathymetric and sub-surface reflection data, using multibeam echosounder and subbottom profiler. This information is critical for understanding seabed geomorphology, geological hazards as well as benthic habitats in the region. The survey covered a significant part of DFO's NE Newfoundland fishery closure as well as ecologically and biologically significant areas known for high-density populations of deep-sea corals, sponges and sea pens. As a result of this cruise Canadian North Atlantic multibeam coverage was augmented by about 13,000 square kilometers of new bathymetric data and more than 2400 line miles of sub-bottom profiler data.

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