Data

Krill Observational Mooring for Benthic Investigation (KOMBI) deployments - 2021-2022 Data

Australian Antarctic Division
Smith, A. ; SMITH, ABIGAIL
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/bnhn-dy38&rft.title=Krill Observational Mooring for Benthic Investigation (KOMBI) deployments - 2021-2022 Data&rft.identifier=10.26179/bnhn-dy38&rft.publisher=Australian Antarctic Data Centre&rft.description=These are the 2021-2022 data collected from three KOMBI moorings deployed in the Southern Ocean. See the related metadata records for data from other years.Hydrophone data from the KOMBI moorings are available from other metadata records.The KOMBI (Krill Observational Mooring for Benthic Investigations) seafloor landers are autonomous oceanographic platforms designed to collect high-resolution time-series data on krill species, non-krill species and their seafloor environment across a full year in the Antarctic. Each mooring integrates multiple sensors—such as temperature, salinity, pressure (CTD), video cameras, current profiles and acoustic backscatter—to support long-term ecosystem monitoring and process-based studies. KOMBI moorings are deployed to capture seasonal to interannual variability, improve understanding of pelagic habitat dynamics, and provide continuous observations that complement ship-based and remote-sensing programs. The time series is ongoing and data will be continuously added upon platform retrieval.    This dataset contains all data collected from Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor lander platforms.KOMBI platforms were left on the seafloor for one year at depths on the continental shelf and near the shelf break. 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: completedStatement: The datasets included are raw and unprocessed. Active acoustic data requires calibration offsets to be applied (see Nortek Echosounder Calibration files).&rft.creator=Smith, A. &rft.creator=SMITH, ABIGAIL &rft.date=2026&rft.coverage=westlimit=24.25781; southlimit=-72.50172; eastlimit=171.21094; northlimit=-51.39921&rft.coverage=westlimit=24.25781; southlimit=-72.50172; eastlimit=171.21094; northlimit=-51.39921&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_4636_KOMBI_time_series_2021-2022 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=oceans&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)&rft_subject=EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS > CURRENT PROFILES&rft_subject=KOMBI&rft_subject=LANDER&rft_subject=4636&rft_subject=AAS 4636&rft_subject=CTD > Conductivity, Temperature, Depth&rft_subject=ADCP > Acoustic Doppler Current Profiler&rft_subject=VIDEO CAMERA > VIDEO CAMERA&rft_subject=ECHO SOUNDERS > ECHO SOUNDERS&rft_subject=MOORINGS&rft_subject=CEOS&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=OCEAN > SOUTHERN OCEAN > EAST ANTARCTIC CONTINENTAL SHELF&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=CONTINENT > ANTARCTICA > Prydz Bay&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=OCEAN > SOUTHERN OCEAN > KERGUELEN PLATEAU&rft.type=dataset&rft.language=English Access the data
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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_4636_KOMBI_time_series_2021-2022 when using these data.

This metadata record is publicly available.

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Full description

These are the 2021-2022 data collected from three KOMBI moorings deployed in the Southern Ocean. See the related metadata records for data from other years.

Hydrophone data from the KOMBI moorings are available from other metadata records.

The KOMBI (Krill Observational Mooring for Benthic Investigations) seafloor landers are autonomous oceanographic platforms designed to collect high-resolution time-series data on krill species, non-krill species and their seafloor environment across a full year in the Antarctic. Each mooring integrates multiple sensors—such as temperature, salinity, pressure (CTD), video cameras, current profiles and acoustic backscatter—to support long-term ecosystem monitoring and process-based studies. KOMBI moorings are deployed to capture seasonal to interannual variability, improve understanding of pelagic habitat dynamics, and provide continuous observations that complement ship-based and remote-sensing programs. The time series is ongoing and data will be continuously added upon platform retrieval.
    
This dataset contains all data collected from Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor lander platforms.

KOMBI platforms were left on the seafloor for one year at depths on the continental shelf and near the shelf break. 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: completed
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: 2021-03-03 to 2022-06-28

This dataset is part of a larger collection

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171.21094,-51.39921 171.21094,-72.50172 24.25781,-72.50172 24.25781,-51.39921 171.21094,-51.39921

97.734375,-61.950465

text: westlimit=24.25781; southlimit=-72.50172; eastlimit=171.21094; northlimit=-51.39921

Subjects
4636 | AAS 4636 | ADCP > Acoustic Doppler Current Profiler | AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA > Prydz Bay | CTD > Conductivity, Temperature, Depth | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL) | EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS | EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS > CURRENT PROFILES | ECHO SOUNDERS > ECHO SOUNDERS | GEOGRAPHIC REGION > POLAR | KOMBI | LANDER | MOORINGS | OCEAN > SOUTHERN OCEAN | OCEAN > SOUTHERN OCEAN > EAST ANTARCTIC CONTINENTAL SHELF | OCEAN > SOUTHERN OCEAN > KERGUELEN PLATEAU | 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/6218/download

Public information for AAS project AAS_4636 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.cfm?project_no=AAS_4636

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

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4636_KOMBI_time_series_2021-2022

Identifiers
ACN 633 798 857