ARICE Metadata Catalogue
Acoustic sub-bottom profiles (3.5 kHz) from the CCGS Amundsen (2014-2016)
Geophysical data from a single-channel 3.5kHz sub-bottom profiler is acquired 24hrs during CCGS Amundsen’s cruises by a Knudsen 320-BR (2014 and 2015 cruises) and a 3260 (2016 cruise) sub-bottom profiler. The sounder is comped of 16 (4x4 array) transducers outputting a total of 10KW. The dataset consists of raw (keb and sgy) and processed (JPEG2000 and PNG images) data. Heave (TSS1 form the Applanix POS-MV) and GPS (ZDA, VTG, GGA from the CNAV GNSS Receiver) data are inputted to the raw data files directly during acquisition. The processing is made using the NRCAN software suite (SEGY to SGYJP2 and SegyJp2Viewer). The speed of sound is constantly set to 1500 m/s.
The data are available per year (2014 to 2016) in an ESRI ArcGIS geodatabase format where shiptrack lines are linked to png images of the sub-bottom profile.
Simple
- Date (Publication)
- 2017-01-10
- Other citation details
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Lajeunesse, P., Joyal, G. (2016). Acoustic sub-bottom profiles (3.5 kHz) from the CCGS Amundsen (2014-2016)
- Purpose
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The acoustic geophysical dataset is part of the core seabed mapping component of the ArcticNet Research Program : 'Mapping of Arctic Canada's Seafloor: Contributions to Global Change Science, Sustainable Resource Development, Safe Navigation of the Northwest Passage, Geohazards and Arctic Sovereignty'. Acoustic mapping of the seabed relief and shallow subsurface sediments are the prime datasets used by scientists to understand the geological processes shaping the seafloor, assess natural hazards and coastal habitats and reconstruct the history of past climatic changes. The mapping results from this project are applied to several components: 1) identifying geohazards such as submarine landslides, gassy seabeds and sea ice impacts in order to manage risk to both people and the environment in the context of resource development; 2) providing improved navigational charting and alternate shipping lanes in sparsely mapped regions of the Arctic; and 3) designing seabed sampling strategies to recover sediments that will provide information on past climatic history in order to predict future climatic responses and their consequences.
*related to CCIN 12586
- Status
- Completed
Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
polardata.ca
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Polar Data Catalogue Thesaurus (Canada)
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Acoustic
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Geomorphology
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Geophysical surveys
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Sediments
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Sub-bottom profiler
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- Place
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Canadian Arctic
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- Access constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse
- Metadata language
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eng; CAN
- Topic category
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- Environment
))
- Begin date
- 2014-05-01
- End date
- 2016-10-02
- Supplemental Information
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Summary: Not Applicable Research Program(s): ArcticNet. For further information: gabriel.joyal.1@ulaval.ca (upon demand) gabriel.joyal.1@ulaval.ca Summary: Not Applicable Research Program(s): ArcticNet. For further information: gabriel.joyal.1@ulaval.ca (upon demand)
- Distribution format
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Digital file
(1.0
)
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Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
- Included with dataset
- No
- File identifier
- 34356b14-13c9-4fc7-aae7-7977be4b89bb XML
- Metadata language
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eng; CAN
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2022-04-08T12:59:52
- Metadata standard name
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North American Profile of ISO 19115:2003
- Metadata standard version
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2009-01-01
Canadian Cryospheric Information Network
-Polar Data Catalogue
200 University Avenue West, University of Waterloo
,Waterloo
,Ontario
,N2L 3G1
,Canada
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