Weddell Seal Underwater and In-Air Call Measurements, Antarctica 1997

Amplitude measurements from 230 underwater calls by Weddell seals, recorded at three locations near Davis, Antarctica. The dataset includes 582 measurements of call levels in air and underwater, frequencies, and background noise. Data was collected by the Australian Antarctic Data Centre (AU_AADC) and last updated in December 1997.

Use Cases

• Modeling sound transmission from water to air based on measured amplitude differences.
• Analyzing call type prevalence and frequency ranges for behavioral studies.
• Assessing the audibility of underwater calls to seals and humans based on threshold comparisons.
• Investigating the impact of environmental noise, such as wind, on call detection.

Strengths

• Includes 582 amplitude measurements derived from 230 distinct calls.
• Provides specific decibel ranges for in-air call amplitudes (e.g., 32-74 dB at 86 Hz).
• Compares measurements against known detection thresholds for harbor seals and humans.

Limitations

• Last updated 1997-12-08 23:59:59.999000; freshness should be verified.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the three specific Antarctic locations.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC), associated with ASAC project 2122.

Collection Method

In-air and underwater recordings made at three locations near Davis, Antarctica.

Time Range

Data collection likely occurred around 1997.

Freshness

1997-12-08 23:59:59.999000

Geography

Three locations near Davis, Antarctica.