08bc0784-bd8a-449d-a1a0-79b489c8a521 eng; CAN Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca 2022-04-08T13:00:25 North American Profile of ISO 19115:2003 2009-01-01 https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=11377 SX90 sonar data in the Eastern Canadian Arctic: 2011 2015-03-17 Fortier, Louis Geoffroy, Maxime Hogan Lamarre, Pascal Rousseau, Shani Maxime Geoffroy, unpublished The data set is composed of raw files recorded with the Kongsberg Maritime SX90 long-range, low frequency (20-30 kHz) fisheries sonar during the CCGS Amundsen 2011 summer expedition in the Eastern Canadian Arctic. The sonar was operated during a 3 hours opportunistic survey offshore the Labrador coast on July 22nd and during a 18.75 hours opportunistic survey on July 30th. The sonar transducer is 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 (horizontal) 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. As part of the CCGS Amundsen 2011 summer expedition in the Canadian Arctic, the SX90 side-scan fisheries sonar was operated opportunistically during two iceberg mapping periods to better understand the capabilities and limitations of the sonar. One tabular iceberg was detected on July 22nd offshore the Labrador coast, and a portion of the Peterman tabular iceberg was approached on July 30th in Lancaster Sound. The purpose of this study was to use the two icebergs as targets to evaluate the maximum detection range and the accuracy of depth estimates by the SX90 sonar. Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://metadata.arice-h2020.eu/geonetwork/srv/api/records/08bc0784-bd8a-449d-a1a0-79b489c8a521/attachments/map.png Acoustic Iceberg Labrador Lancaster Sound Seals Polar Data Catalogue Thesaurus (Canada) 2021-06-02 Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca polardata.ca http https://www.polardata.ca/pdcinput/public/keywordlibrary Labrador and Lancaster Sound, Canada Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse eng; CAN environment -85 -53 52 75 Time period can be either covered by the content of the dataset or the date when the data has been collected. 2011-07-22 2011-07-30 Summary: Not applicable Research Program(s): ArcticNet. For further information: Louis.Fortier@bio.ulaval.ca false Digital file 1.0 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca This metadata was generated from the PDC metadata database at 2021-06-02 Polar Data Catalogue Canadian Cryospheric Information Network (519) 888-4567 x32689 200 University Avenue West, University of Waterloo Waterloo Ontario N2L 3G1 Canada pdc@uwaterloo.ca