GA353: AUV Seafloor Imagery from Gippsland Basin Post-Seismic Survey

Gippsland Basin seafloor imagery collected by an AUV-Phoenix vehicle from 19-25 June 2015. The dataset contains stereo camera images, track files, and mosaics from 12 sites, intended to analyze potential impacts of a prior seismic survey on scallops. Data was collected by Australian Marine Ecology and the University of Sydney for the Gippsland Marine Environmental Monitoring project.

Use Cases

• Assess changes in scallop populations based on stereo image pairs collected before and after a seismic survey.
• Map seafloor characteristics using post-processed geotiffs and compressed image mosaics.
• Analyze AUV navigation and image quality issues based on track files and documented strobe failures.

Strengths

• Stereo image pairs were collected at a calibrated 2 Hz rate with a target altitude of 2 meters.
• Cameras had a resolution of 1388 x 1038 pixels, and calibration was performed immediately prior to the survey.
• Dataset includes multiple data products: geotiffs, track files, and image mosaics for each station.

Limitations

• Strong currents truncated transects at Stations 14, 37, and 47, and strobe failures reduced image quality at Stations 40 and 47.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Collected via an Iver AUV (Phoenix) operated by Australian Marine Ecology Pty Ltd and the University of Sydney, equipped with stereo cameras, USBL, and sidescan sonar.

Time Range

19-25 June 2015

Freshness

Last updated 2026-04-20 03:43:18.680292; freshness should be verified.

Geography

Gippsland Basin, Australia