Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015
<p>Krill and fish were sampled acoustically and visually beneath the fast ice using the tethered SCINI ROV, which was deployed and operated through a 25 cm diameter hole drilled through the sea ice. SCINI contained cameras and thrusters, and towed a sensor package consisting of a WET Labs fluo...
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Biological and Chemical Oceanography Data Management Office (BCO-DMO)
2017
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dataone:sha256:95a88bc0480a10e8fc7396890f0a865c7e6a862c52d2221f2221a70bf9835ac0 2024-06-03T18:46:58+00:00 Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 Kendra L. Daly Benjamin Saenz Stacy Kim ENVELOPE(165.06108,166.33482,-77.5508,-77.703186) BEGINDATE: 2014-11-23T00:00:00Z ENDDATE: 2015-01-07T00:00:00Z 2017-08-31T00:00:00Z https://search.dataone.org/view/sha256:95a88bc0480a10e8fc7396890f0a865c7e6a862c52d2221f2221a70bf9835ac0 unknown Biological and Chemical Oceanography Data Management Office (BCO-DMO) Acoustic Backscatter, krill, silverfish, echosounder, McMurdo Sound, SCINI ROV, oceans Dataset 2017 dataone:urn:node:BCODMO 2024-06-03T18:19:46Z <p>Krill and fish were sampled acoustically and visually beneath the fast ice using the tethered SCINI ROV, which was deployed and operated through a 25 cm diameter hole drilled through the sea ice. SCINI contained cameras and thrusters, and towed a sensor package consisting of a WET Labs fluorometer (ECO-AFL/FL) and a single-beam Biosonics 120 kHz DT-X echosounder. Visual targets were identified to the lowest taxon possible; these observations were used primarily to verify classification of acoustic signals. The echosounder operated at a nominal ping rate of 1 ping s-1; however, this rate was occasionally adjusted if false bottom signals were observed. The general profile of a dive included a surface transect of ~300 m horizontal distance, where the acoustic transducer faced downward, and also a dive to ~120 m if conditions allowed. Echogram data were saved to a depth of 500 m, and background noise was removed. Given the effective range of the transducer of approximately 100 m (resolving -80 dB targets), surveys characterized the upper 200 m of the water column.</p> Dataset McMurdo Sound Sea ice Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) McMurdo Sound ENVELOPE(165.06108,166.33482,-77.5508,-77.703186) |
institution |
Open Polar |
collection |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) |
op_collection_id |
dataone:urn:node:BCODMO |
language |
unknown |
topic |
Acoustic Backscatter, krill, silverfish, echosounder, McMurdo Sound, SCINI ROV, oceans |
spellingShingle |
Acoustic Backscatter, krill, silverfish, echosounder, McMurdo Sound, SCINI ROV, oceans Kendra L. Daly Benjamin Saenz Stacy Kim Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
topic_facet |
Acoustic Backscatter, krill, silverfish, echosounder, McMurdo Sound, SCINI ROV, oceans |
description |
<p>Krill and fish were sampled acoustically and visually beneath the fast ice using the tethered SCINI ROV, which was deployed and operated through a 25 cm diameter hole drilled through the sea ice. SCINI contained cameras and thrusters, and towed a sensor package consisting of a WET Labs fluorometer (ECO-AFL/FL) and a single-beam Biosonics 120 kHz DT-X echosounder. Visual targets were identified to the lowest taxon possible; these observations were used primarily to verify classification of acoustic signals. The echosounder operated at a nominal ping rate of 1 ping s-1; however, this rate was occasionally adjusted if false bottom signals were observed. The general profile of a dive included a surface transect of ~300 m horizontal distance, where the acoustic transducer faced downward, and also a dive to ~120 m if conditions allowed. Echogram data were saved to a depth of 500 m, and background noise was removed. Given the effective range of the transducer of approximately 100 m (resolving -80 dB targets), surveys characterized the upper 200 m of the water column.</p> |
format |
Dataset |
author |
Kendra L. Daly Benjamin Saenz Stacy Kim |
author_facet |
Kendra L. Daly Benjamin Saenz Stacy Kim |
author_sort |
Kendra L. Daly |
title |
Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
title_short |
Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
title_full |
Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
title_fullStr |
Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
title_full_unstemmed |
Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 |
title_sort |
acoustic backscatter from krill and silverfish in mcmurdo sound from 2014-2015 |
publisher |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) |
publishDate |
2017 |
url |
https://search.dataone.org/view/sha256:95a88bc0480a10e8fc7396890f0a865c7e6a862c52d2221f2221a70bf9835ac0 |
op_coverage |
ENVELOPE(165.06108,166.33482,-77.5508,-77.703186) BEGINDATE: 2014-11-23T00:00:00Z ENDDATE: 2015-01-07T00:00:00Z |
long_lat |
ENVELOPE(165.06108,166.33482,-77.5508,-77.703186) |
geographic |
McMurdo Sound |
geographic_facet |
McMurdo Sound |
genre |
McMurdo Sound Sea ice |
genre_facet |
McMurdo Sound Sea ice |
_version_ |
1800873914718486528 |