Low Frequency Antarctic Ocean Acoustic Recordings from 2001-2003

2001 to 2003 acoustic data was recorded west of the Antarctic Peninsula by 7 instruments as part of the Southern Ocean GLOBEC program. The dataset contains low-frequency (10-250 Hz) continuous samples, with a maximum volume of approximately 28 GB per instrument. It was collected by the SCIOPS organization and is situated within the Palmer Long-Term Ecological Research grid.

Use Cases

• Detect and classify marine mammal vocalizations within the 10-250 Hz frequency band.
• Analyze temporal patterns in low-frequency ambient ocean noise across 7 distinct deployment locations.
• Correlate acoustic activity with environmental data using the Palmer LTER grid coordinates (100, 200, 300, 400, 500, 600, and 900 lines).
• Study acoustic propagation differences between on-shelf and off-shelf break environments.

Strengths

• Continuous recordings from 5 of the 7 instrument sites provide a 2-year temporal series.
• Data is geographically anchored within the established Palmer LTER research grid.
• Raw data is packaged in consistent 14-day, 1.1 GB bin files for processing.

Limitations

• Data from 2 of the 7 sites is incomplete and partial.
• The dataset's age (early 2000s) may limit its relevance for studying recent environmental changes.
• Specific metadata like exact row counts, file formats, and recording parameters are unknown.

Provenance

Source

nasa_earthdata, collected by SCIOPS.

Collection Method

Deployed via 7 Acoustic Recording Packages (ARPs) on the Antarctic shelf and shelf break.

Time Range

March/April 2001 to February 2003.

Geography

Ocean region west of the Antarctic Peninsula, within the Palmer LTER grid.