Metadata details
AAS_4512_KOMBI003_2021_hydrophone
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Miller, B.S., Brasier, M.J. and King, R. (2025) KOMBI 003 2021 Long-term Passive Acoustic Data, Ver. 1, Australian Antarctic Data Centre - doi:10.26179/j9th-2j97, Accessed: 2026-06-20
- Title
- KOMBI 003 2021 Long-term Passive Acoustic Data
- Data Centre
- Australian Antarctic Data Centre, Australia
- DOI
- doi:10.26179/j9th-2j97
- Created Date
- 2025-09-10
- Revision Date
- 2025-12-16
- Expected Date of Data Release
- 2025-09-10
- Data Version
- 1
- Parent record
- AAS_4512_KOMBI_2021_Echo
Datasets and documents
Related links
Description
This dataset contains long-term passive acoustic data (i.e. underwater sound recordings) collected from Krill Observational Mooring for Benthic Investigations (KOMBI) seafloor lander platforms and Mooring for Epipelagic Echo-sounding of Krill (MEEK) platforms. In 2021 an AAD Moored Acoustic Recorder was integrated into each of the three KOMBIs deployed during the TEMPO voyage. MARs contained a factory calibrated HTI hydrophone and AAD-calibrated electronics that recorded continuously producing hour-long wav files at 12 kHz sample rate 16-bit depth. The start date and time of each recording is embedded in the file name of each wav file (i.e. yyyy-mm-dd_HH-MM-SS). Passive acoustic recorders recorded low and mid-frequency sounds that may be used for investigation of physical environment (e.g. ice, wind, waves, earth), biological environment (e.g. animal vocalisations and sounds) and anthropogenic noise (e.g. sounds produced by ships, construction, and other human activities).
These data are for recorder 003 - also see the metadata records for recorders 001 and 002.
Related dataset: AAS_4102_longTermAcousticRecordings
Purpose
Record underwater sounds from physical, biological, and anthropogenic sources.
Quality
The hydrophone was co-located next to an echosounder. The echosounder was configured with a 50% duty cycle, and Interference from the echosounder pulses and returns occurred as clicks that saturated the recording chain when the echosounder was active.
Access
These data are publicly available for download from the provided URL.
Temporal Coverages
- Start date: 2021-03-06 - Stop date: 2022-02-17
Spatial Coverages
Data Resolution
- 0.000033333333 Second(s)
Science Keywords
- EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE
- EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE > BIOLOGICAL AMBIENT NOISE
- EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE > PHYSICAL AMBIENT NOISE
- EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE > TOTAL AMBIENT NOISE
Additional Keywords
- KOMBI
Locations
- GEOGRAPHIC REGION > POLAR
- OCEAN > SOUTHERN OCEAN
- CONTINENT > ANTARCTICA
Platforms
- MOORINGS
Instruments
- HYDROPHONES
- Passive Acoustic Recorder
Researchers
- miller, brian (INVESTIGATOR,DIF AUTHOR)
- brasier, madeleine (TECHNICAL CONTACT,DIF AUTHOR)
- king, rob (INVESTIGATOR,TECHNICAL CONTACT)
Use Constraints
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_KOMBI003_2021_hydrophone when using these data.
Project
ISO Topic
- OCEANS
Dataset Language
- English
Orignating Centre
- Australian Antarctic Division
Dataset Progress
- COMPLETE
IDN Node
- AMD/AU
- CEOS
- AMD
Metadata Revision History
2025-09-10 - record created by Brian Miller. 2025-12-16 - record updated by Dave Connell - basic updates.
