SX90 sonar data in the Beaufort Sea: 2014
The data set is composed of raw files recorded with the Kongsberg Maritime SX90 long-range, low frequency (20-30 kHz) fisheries sonar during the CCGS Amundsen 2014 summer expedition in the Beaufort Sea. The sonar transducer was lowered 2.5 feet below the hull through a gate-valve. The cylindrical 25...
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Canadian Cryospheric Information Network
2014
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ftdatacite:10.5443/11992 2023-05-15T13:22:53+02:00 SX90 sonar data in the Beaufort Sea: 2014 Fortier, Louis Geoffroy, Maxime 2014 https://dx.doi.org/10.5443/11992 https://www.polardata.ca/pdcsearch/?doi_id=11992 en eng Canadian Cryospheric Information Network Public Acoustic Amundsen Gulf Arctic cod Beaufort Sea Marine mammals Target strength ArcticNet Network of Centres of Excellence of Canada Beaufort Regional Environmental Assessment dataset Dataset 2014 ftdatacite https://doi.org/10.5443/11992 2021-11-05T12:55:41Z The data set is composed of raw files recorded with the Kongsberg Maritime SX90 long-range, low frequency (20-30 kHz) fisheries sonar during the CCGS Amundsen 2014 summer expedition in the Beaufort Sea. The sonar transducer was lowered 2.5 feet below the hull through a gate-valve. The cylindrical 256-elements transducer allows both a horizontal and a vertical sound transmission, and the omni-directional sonar beam can be tilted from +10 to -60 degrees to scan a large portion of the water column. The raw acoustic data were saved onto an external drive and print screens of interesting targets (fish schools and/or marine mammals) were recorded. : Purpose: Environmental changes and the recent interest in offshore hydrocarbon resources have heightened the need for data and an understanding of aquatic ecosystem components in the Beaufort Sea/Mackenzie Shelf/Amundsen Gulf region. Here, the use of a fisheries sonar to detect and identify fish and marine mammals is investigated. In addition to the larger coverage relative to that of an echosounder, fisheries sonars allow detection of targets up to 1 m below the ocean surface and at distances of up to 2 km from the vessel, thereby reducing biases related to vessel. The fish component of this study aims at detecting Arctic cod aggregations near the surface using the SX90 sonar, and to document their distribution, size and migration patterns. The marine mammal component aims at assessing the effectiveness of the SX90 sonar to detect marine mammals at a distance from the vessel, and to establish acoustic recognition criteria. : Summary: Not applicable Dataset Amundsen Gulf Arctic cod Arctic ArcticNet Beaufort Sea Mackenzie Shelf DataCite Metadata Store (German National Library of Science and Technology) Arctic Canada Kongsberg ENVELOPE(19.082,19.082,69.123,69.123) Omni ENVELOPE(144.232,144.232,59.863,59.863) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Acoustic Amundsen Gulf Arctic cod Beaufort Sea Marine mammals Target strength ArcticNet Network of Centres of Excellence of Canada Beaufort Regional Environmental Assessment |
spellingShingle |
Acoustic Amundsen Gulf Arctic cod Beaufort Sea Marine mammals Target strength ArcticNet Network of Centres of Excellence of Canada Beaufort Regional Environmental Assessment Fortier, Louis Geoffroy, Maxime SX90 sonar data in the Beaufort Sea: 2014 |
topic_facet |
Acoustic Amundsen Gulf Arctic cod Beaufort Sea Marine mammals Target strength ArcticNet Network of Centres of Excellence of Canada Beaufort Regional Environmental Assessment |
description |
The data set is composed of raw files recorded with the Kongsberg Maritime SX90 long-range, low frequency (20-30 kHz) fisheries sonar during the CCGS Amundsen 2014 summer expedition in the Beaufort Sea. The sonar transducer was lowered 2.5 feet below the hull through a gate-valve. The cylindrical 256-elements transducer allows both a horizontal and a vertical sound transmission, and the omni-directional sonar beam can be tilted from +10 to -60 degrees to scan a large portion of the water column. The raw acoustic data were saved onto an external drive and print screens of interesting targets (fish schools and/or marine mammals) were recorded. : Purpose: Environmental changes and the recent interest in offshore hydrocarbon resources have heightened the need for data and an understanding of aquatic ecosystem components in the Beaufort Sea/Mackenzie Shelf/Amundsen Gulf region. Here, the use of a fisheries sonar to detect and identify fish and marine mammals is investigated. In addition to the larger coverage relative to that of an echosounder, fisheries sonars allow detection of targets up to 1 m below the ocean surface and at distances of up to 2 km from the vessel, thereby reducing biases related to vessel. The fish component of this study aims at detecting Arctic cod aggregations near the surface using the SX90 sonar, and to document their distribution, size and migration patterns. The marine mammal component aims at assessing the effectiveness of the SX90 sonar to detect marine mammals at a distance from the vessel, and to establish acoustic recognition criteria. : Summary: Not applicable |
format |
Dataset |
author |
Fortier, Louis Geoffroy, Maxime |
author_facet |
Fortier, Louis Geoffroy, Maxime |
author_sort |
Fortier, Louis |
title |
SX90 sonar data in the Beaufort Sea: 2014 |
title_short |
SX90 sonar data in the Beaufort Sea: 2014 |
title_full |
SX90 sonar data in the Beaufort Sea: 2014 |
title_fullStr |
SX90 sonar data in the Beaufort Sea: 2014 |
title_full_unstemmed |
SX90 sonar data in the Beaufort Sea: 2014 |
title_sort |
sx90 sonar data in the beaufort sea: 2014 |
publisher |
Canadian Cryospheric Information Network |
publishDate |
2014 |
url |
https://dx.doi.org/10.5443/11992 https://www.polardata.ca/pdcsearch/?doi_id=11992 |
long_lat |
ENVELOPE(19.082,19.082,69.123,69.123) ENVELOPE(144.232,144.232,59.863,59.863) |
geographic |
Arctic Canada Kongsberg Omni |
geographic_facet |
Arctic Canada Kongsberg Omni |
genre |
Amundsen Gulf Arctic cod Arctic ArcticNet Beaufort Sea Mackenzie Shelf |
genre_facet |
Amundsen Gulf Arctic cod Arctic ArcticNet Beaufort Sea Mackenzie Shelf |
op_rights |
Public |
op_doi |
https://doi.org/10.5443/11992 |
_version_ |
1766367682732490752 |