Acoustic detection of krill from an undersea glider
The GENTOO project aims to investigate the potential for undersea gliders to make high resolution temporal and spatial biological and physical observations of ocean currents and krill distribution to the east of the Antarctic Peninsula. In January 2012 three iRobot Seagliders were deployed to measur...
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ftnerc:oai:nora.nerc.ac.uk:501039 2023-05-15T13:48:07+02:00 Acoustic detection of krill from an undersea glider Fielding, Sophie Guihen, Damien Griffiths, Gwyn Creed, Elizabeth Curnow, Steve Murphy, Eugene Heywood, Karen 2012 http://nora.nerc.ac.uk/id/eprint/501039/ http://www.acoustics.washington.edu/FAST/ unknown Fielding, Sophie orcid:0000-0002-3152-4742 Guihen, Damien; Griffiths, Gwyn; Creed, Elizabeth; Curnow, Steve; Murphy, Eugene orcid:0000-0002-7369-9196 Heywood, Karen. 2012 Acoustic detection of krill from an undersea glider. [Speech] In: ICES Working group on Fisheries Acoustics Science and Technology, Brest, France, 24-29 Apr 2012. (Unpublished) Marine Sciences Biology and Microbiology Publication - Conference Item NonPeerReviewed 2012 ftnerc 2023-02-04T19:36:37Z The GENTOO project aims to investigate the potential for undersea gliders to make high resolution temporal and spatial biological and physical observations of ocean currents and krill distribution to the east of the Antarctic Peninsula. In January 2012 three iRobot Seagliders were deployed to measure temperature, salinity, dissolved oxygen, chlorophyll fluorescence, acoustic backscatter and depth-averaged currents in the upper 1000 m along sections across the Antarctic continental shelf and slope into the Weddell Sea. At the same time a newly developed stand alone echosounder, Imagenex ES853 120 kHz, was integrated into a Seaglider to collect mean volume backscatter measurements of Antarctic krill. We outline the constraints of the glider as an active acoustic platform; present the first results of calibrating the echosounder using a tungsten carbide sphere, discuss validation of target identification by mounting the echosounder onto a Rectangular Midwater Trawl (RMT8) and show data from two short deployments of the echosounder integrated into the glider. Text Antarc* Antarctic Antarctic Krill Antarctic Peninsula Weddell Sea Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
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Natural Environment Research Council: NERC Open Research Archive |
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Marine Sciences Biology and Microbiology |
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Marine Sciences Biology and Microbiology Fielding, Sophie Guihen, Damien Griffiths, Gwyn Creed, Elizabeth Curnow, Steve Murphy, Eugene Heywood, Karen Acoustic detection of krill from an undersea glider |
topic_facet |
Marine Sciences Biology and Microbiology |
description |
The GENTOO project aims to investigate the potential for undersea gliders to make high resolution temporal and spatial biological and physical observations of ocean currents and krill distribution to the east of the Antarctic Peninsula. In January 2012 three iRobot Seagliders were deployed to measure temperature, salinity, dissolved oxygen, chlorophyll fluorescence, acoustic backscatter and depth-averaged currents in the upper 1000 m along sections across the Antarctic continental shelf and slope into the Weddell Sea. At the same time a newly developed stand alone echosounder, Imagenex ES853 120 kHz, was integrated into a Seaglider to collect mean volume backscatter measurements of Antarctic krill. We outline the constraints of the glider as an active acoustic platform; present the first results of calibrating the echosounder using a tungsten carbide sphere, discuss validation of target identification by mounting the echosounder onto a Rectangular Midwater Trawl (RMT8) and show data from two short deployments of the echosounder integrated into the glider. |
format |
Text |
author |
Fielding, Sophie Guihen, Damien Griffiths, Gwyn Creed, Elizabeth Curnow, Steve Murphy, Eugene Heywood, Karen |
author_facet |
Fielding, Sophie Guihen, Damien Griffiths, Gwyn Creed, Elizabeth Curnow, Steve Murphy, Eugene Heywood, Karen |
author_sort |
Fielding, Sophie |
title |
Acoustic detection of krill from an undersea glider |
title_short |
Acoustic detection of krill from an undersea glider |
title_full |
Acoustic detection of krill from an undersea glider |
title_fullStr |
Acoustic detection of krill from an undersea glider |
title_full_unstemmed |
Acoustic detection of krill from an undersea glider |
title_sort |
acoustic detection of krill from an undersea glider |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/501039/ http://www.acoustics.washington.edu/FAST/ |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Weddell |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Weddell Sea |
op_relation |
Fielding, Sophie orcid:0000-0002-3152-4742 Guihen, Damien; Griffiths, Gwyn; Creed, Elizabeth; Curnow, Steve; Murphy, Eugene orcid:0000-0002-7369-9196 Heywood, Karen. 2012 Acoustic detection of krill from an undersea glider. [Speech] In: ICES Working group on Fisheries Acoustics Science and Technology, Brest, France, 24-29 Apr 2012. (Unpublished) |
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1766248636539207680 |