Data

Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor mooring datasets

Australian Antarctic Division
Cox, M., Smith, A., King, R. and Kawaguchi, S. ; COX, MARTIN ; SMITH, ABIGAIL ; KING, ROB ; KAWAGUCHI, SO
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/4sw2-dk40&rft.title=Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor mooring datasets&rft.identifier=10.26179/4sw2-dk40&rft.publisher=Australian Antarctic Data Centre&rft.description=This dataset contains all data collected from Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor lander platforms and Mooring for Epipelagic Echo-sounding of Krill (MEEK) platforms. KOMBI platforms were left on the seafloor for one year at depths on the continental shelf and near the shelf break. MEEK moorings are tethered by a mooring string in deeper water, with the top float at approximately 400m depth. The minimum depth of a mooring is 350m to avoid collision with icebergs and the maximum depth is 1500m. KOMBI dimensions are 1145 x 1145 x 1300 mm. Moorings are typically deployed in summer months from vessels and are left to collect data for one year (at least).Active acoustic (ADCP and echosounder) data, passive acoustic data, CTD data and video camera footage are available from various instruments installed on the moorings. Active acoustic deployment files, compass calibrations and echosounder calibration files are included. Echosounders were calibrated in a 10,000L tank of temperature-controlled seawater at the Australian Antarctic Division in Kingston, using a 23mm tungsten carbide sphere and a paired Simrad EK80 333kHz echosounder to map the beam. Calibration raw data and code is included to produce Nortek SONAR equation CalibrationOffsetSv for each frequency. Calibration is only available for narrowband frequencies. Data collection began in 2021 and is ongoing.Progress Code: onGoingStatement: The datasets included are raw and unprocessed. Active acoustic data requires calibration offsets to be applied (see Nortek Echosounder Calibration files).&rft.creator=Cox, M., Smith, A., King, R. and Kawaguchi, S. &rft.creator=COX, MARTIN &rft.creator=SMITH, ABIGAIL &rft.creator=KING, ROB &rft.creator=KAWAGUCHI, SO &rft.date=2024&rft.coverage=westlimit=42.89063; southlimit=-70.61261; eastlimit=88.59375; northlimit=-54.57206&rft.coverage=westlimit=42.89063; southlimit=-70.61261; eastlimit=88.59375; northlimit=-54.57206&rft.coverage=uplimit=1500; downlimit=0&rft.coverage=uplimit=1500; downlimit=0&rft_rights=These data are not yet publicly available for download.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4512_KOMBI_2021_Echo when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=oceans&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)&rft_subject=EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE > BIOLOGICAL AMBIENT NOISE&rft_subject=KOMBI&rft_subject=MEEK&rft_subject=CTD > Conductivity, Temperature, Depth&rft_subject=ACOUSTIC SOUNDERS&rft_subject=VIDEO CAMERA > VIDEO CAMERA&rft_subject=Passive Acoustic Recorder&rft_subject=MOORINGS&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are not yet publicly available for download.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4512_KOMBI_2021_Echo when using these data.

This metadata record is publicly available.

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Full description

This dataset contains all data collected from Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor lander platforms and Mooring for Epipelagic Echo-sounding of Krill (MEEK) platforms.

KOMBI platforms were left on the seafloor for one year at depths on the continental shelf and near the shelf break. MEEK moorings are tethered by a mooring string in deeper water, with the top float at approximately 400m depth. The minimum depth of a mooring is 350m to avoid collision with icebergs and the maximum depth is 1500m. KOMBI dimensions are 1145 x 1145 x 1300 mm. Moorings are typically deployed in summer months from vessels and are left to collect data for one year (at least).

Active acoustic (ADCP and echosounder) data, passive acoustic data, CTD data and video camera footage are available from various instruments installed on the moorings. Active acoustic deployment files, compass calibrations and echosounder calibration files are included. Echosounders were calibrated in a 10,000L tank of temperature-controlled seawater at the Australian Antarctic Division in Kingston, using a 23mm tungsten carbide sphere and a paired Simrad EK80 333kHz echosounder to map the beam. Calibration raw data and code is included to produce Nortek SONAR equation CalibrationOffsetSv for each frequency. Calibration is only available for narrowband frequencies.

Data collection began in 2021 and is ongoing.

Lineage

Progress Code: onGoing
Statement: The datasets included are raw and unprocessed. Active acoustic data requires calibration offsets to be applied (see Nortek Echosounder Calibration files).

Notes

Purpose
For seasonal investigations into the behaviour of krill and relationships with their ecosystems.

Data time period: 2021-02-21

This dataset is part of a larger collection

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88.59375,-54.57206 88.59375,-70.61261 42.89063,-70.61261 42.89063,-54.57206 88.59375,-54.57206

65.74219,-62.592335

text: westlimit=42.89063; southlimit=-70.61261; eastlimit=88.59375; northlimit=-54.57206

text: uplimit=1500; downlimit=0

Subjects
ACOUSTIC SOUNDERS | AMD | AMD/AU | CEOS | CTD > Conductivity, Temperature, Depth | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL) | EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE > BIOLOGICAL AMBIENT NOISE | GEOGRAPHIC REGION > POLAR | KOMBI | MEEK | MOORINGS | OCEAN > SOUTHERN OCEAN | Passive Acoustic Recorder | VIDEO CAMERA > VIDEO CAMERA | biota | oceans |

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5843/download

Download the calibration files. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/6022/download

Public information for AAS project 4512 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.cfm?project_no=4512

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4512_KOMBI_2021_Echo

Identifiers
ACN 633 798 857