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TitleReprocessed multi-channel seismic-reflection data set from the Arctic Ocean, collected using icebreakers between 2007-2011 and 2014-2016 for the Canadian Extended Continental Shelf program
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorShimeld, J; Boggild, K; Mosher, D CORCID logo; Jackson, H RORCID logo
SourceGeological Survey of Canada, Open File 8850, 2021, 10 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
File formatreadme
File formatpdf; rtf; jpg; html; txt; png; sgy (SEG-Y standard binary files)
ProvinceNorthern offshore region; Northwest Territories; Yukon; Nunavut
AreaArctic Ocean; Beaufort Sea
Lat/Long WENS 80.0000 -170.0000 90.0000 70.0000
Subjectsmarine geology; geophysics; Nature and Environment; Science and Technology; continental margins; continental shelf; geophysical surveys; seismic surveys, marine; seismic reflection surveys; seismic data; software; United Nations Convention On The Law Of The Sea (Unclos); Seismic Explorer; Boundaries; Data processing
Illustrationsphotographs; location maps; schematic diagrams; tables; seismic reflection profiles; figures
ProgramDelineating Canada's Continental Shelf Under UNCLOS
Released2021 12 02
Summary(Plain Language Summary, not published)
Upon ratifying the United Nations Convention on the Law of the Sea in 2003, the Government of Canada needed information from seismic reflection data to define the outer limits of its Extended Continental Shelf in the Arctic Ocean. Staff at the Geological Survey of Canada collected these data using a seismic system designed for deployment on the icebreaker Louis S. St-Laurent during eight expeditions in 2007-2011 and 2014-2016. These expeditions were managed by three federal government departments (Natural Resources, Fisheries and Oceans, and Global Affairs) and involved multiple operational collaborations with the United States, Denmark and Sweden. The work produced 157 seismic reflection lines with a combined track-length of 18622 km, offering abundant information about the crust and overlying sedimentary succession across previously unexplored regions of the Arctic Ocean basin. The data are released both as SEG-Y standard binary files and PNG standard raster images. Signal processing is applied in a consistent manner using specialized techniques developed through accumulated experience with various noise-types caused by the icebreaking operations. Users can browse the seismic data in geographical and geological context using the provided map-based interface, which is run on a standard web-browser.

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