TOBI side-scan sonar raster image mosaics of submarine canyons off Morocco

This dataset consists of image mosaics of submarine canyons off Morocco collected using TOBI side-scan sonar on RV Maria S. Merian cruise MSM32, which occurred between 25 September and 30 October 2013. Imaging was conducted using a TOBI deep tow sidescan sonar, a high-resolution 2D seismic system consisting of a 150m long 88 channel digital streamer and a standard GI-gun. This cruise formed the field component of NERC Discovery Science project ‘How do submarine landslides disintegrate and form long run-out turbidity currents in the deep ocean, and how erosive are these flows?’ The study aimed to generate the first ever field dataset tracing a large-scale submarine landslide and its associated sediment-gravity flow from source-to-sink. This resulting dataset will aim to answer three important science questions: 1) How quickly do large submarine landslides disintegrate into long run-out sediment flows, and how is this process influenced by shape of the slope? 2) How efficiently do landslides remove failed material, i.e. what proportion of landslide debris is deposited on the slope and how much transforms into a flow that is transported distally? 3) How much sediment is incorporated into the flow through seafloor erosion, and where does most of this erosion take place? The Discovery Science project was composed of Standard Grant reference NE/J012955/1 and was led by Professor Russell Barry Wynn (National Oceanography Centre, Science and Technology). Funding ran from 07 June 2013 to 06 June 2014. Data have been received by BODC as raw files from the RRS James Cook and are available on request from BODC enquiries.

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Alternate title

British Oceanographic Data Centre record 1048_TOBI_image_data
Date (Publication)
2019-02-13
Date (Creation)
2018-11-09
Date (Revision)
2018-11-09
Citation identifier
http://www.bodc.ac.uk/ / EDMED6872
Point of contact
Organisation name Individual name Electronic mail address Role

British Oceanographic Data Centre

Unknown

enquiries@bodc.ac.uk

Originator

British Oceanographic Data Centre

enquiries@bodc.ac.uk

Custodian
Maintenance and update frequency
As needed

MEDIN metadata record availability

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SeaDataNet PDV

INSPIRE themes
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Usage restrictions are specified in the terms of the licence
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Data are freely available to all following agreement to the terms and conditions of a Data Licence
Language
English
Topic category
  • Oceans
N
S
E
W
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Begin date
2013-09-25
End date
2013-10-30
Supplemental Information

Publication year: 2015-04-09

Publication title: The Eugen Seibold coral mounds offshore western Morocco: oceanographic and bathymetric boundary conditions of a newly discovered cold-water coral province

Publication authors: Silke Glogowski, Wolf-Christian Dullo, Peter Feldens, Volker Liebetrau, Jonas von Reumont, Veit Hühnerbach, Sebastian Krastel, Russell B. Wynn, Sascha Flögel

Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
    Distributor contact
    Organisation name Individual name Electronic mail address Role

    British Oceanographic Data Centre

    enquiries@bodc.ac.uk

    		Distributor
    Hierarchy level
    Dataset
    Statement

    This dataset was created by scientists for 'How do submarine landslides disintegrate and form long run-out turbidity currents in the deep ocean, and how erosive are these flows?' project, which ran from 2013 to 2015, following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for ingestion into one of the schemas of the National Oceanographic Database (NODB). During ingestion BODC undertake quality control, documentation and metadata enhancement procedures appropriate to the type of data. For an overview please see http://www.bodc.ac.uk/about/information_technology/data_processing_steps/. BODC supply full information about data collection, data processing and data quality with all data requests to enable users to assess data suitability themselves .

    Instrument(s) used to collect data: sidescan sonars.

    Metadata

    File identifier
    cc4b211bef8a56f89022ecc8be148d6b XML
    Metadata language
    English
    Hierarchy level
    Dataset
    Date stamp
    2019-02-13T06:31:33
    Metadata standard name

    MEDIN Discovery Metadata Standard
    Metadata standard version

    Version 2.3.8
    Metadata author
    Organisation name Individual name Electronic mail address Role

    British Oceanographic Data Centre

    Polly Hadžiabdić

    enquiries@bodc.ac.uk

    		Point of contact
     
     

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