Antarctic Blue and Fin Whale Acoustic Recordings and Annotations, Casey Station 2019

Approximately 200 hours of underwater acoustic recordings collected at Casey Station, East Antarctica, between December 2018 and December 2019. The dataset includes time-frequency annotations for Antarctic blue and fin whale calls made by three independent human analysts and a CSV file consolidating detections from five observers. It was created by the Australian Ocean Data Network to support a multi-observer capture-recapture analysis.

Use Cases

• Evaluating automated whale call detectors based on multi-observer adjudicated ground truth.
• Studying Antarctic blue whale song unit occurrence based on annotated low-frequency calls.
• Conducting capture-recapture population density estimation based on passive acoustic detection histories.
• Comparing human analyst performance and consistency for bioacoustic annotation tasks.

Strengths

• Approximately 200 hours of acoustic recordings, downsampled to 1000 Hz.
• Annotations cover multiple call types for two whale species, made by three independent human analysts.
• Recordings are a 2% subset distributed evenly throughout the year to represent annual conditions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic/temporal bias inherent to data_gov_au.

Provenance

Source

Australian Ocean Data Network

Collection Method

Passive acoustic recordings collected via a moored acoustic recorder deployed at approximately 2700 m depth.

Time Range

23 December 2018 to 13 December 2019

Freshness

Last updated 2026-06-23 01:16:22.201066; freshness should be verified.

Geography

Casey Station, East Antarctica (63°48'S, 111°47'E)