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...
Main Authors: | , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
2017
|
Subjects: | |
Online Access: | https://search.dataone.org/view/sha256:ce4b00b5fa3df6293c3a6020ad112097b8bd6311172f5a341c57304b8a0c820e |
id |
dataone:sha256:ce4b00b5fa3df6293c3a6020ad112097b8bd6311172f5a341c57304b8a0c820e |
---|---|
record_format |
openpolar |
spelling |
dataone:sha256:ce4b00b5fa3df6293c3a6020ad112097b8bd6311172f5a341c57304b8a0c820e 2024-06-03T18:46:58+00:00 Acoustic backscatter from krill and silverfish in McMurdo Sound from 2014-2015 Kendra L. Daly David G. Ainley Grant Ballard Stacy Kim Benjamin Saenz 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:ce4b00b5fa3df6293c3a6020ad112097b8bd6311172f5a341c57304b8a0c820e 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 2024-06-03T18:11:01Z <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 David G. Ainley Grant Ballard Stacy Kim Benjamin Saenz 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 David G. Ainley Grant Ballard Stacy Kim Benjamin Saenz |
author_facet |
Kendra L. Daly David G. Ainley Grant Ballard Stacy Kim Benjamin Saenz |
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:ce4b00b5fa3df6293c3a6020ad112097b8bd6311172f5a341c57304b8a0c820e |
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_ |
1800873914516111360 |