Rowley Shoals Underwater Video Survey for Hydrocarbon Seepage Detection

Approximately 5.5 hours of underwater video footage was captured during a 2006 marine survey on the RV Southern Surveyor. The survey aimed to identify natural hydrocarbon seepage and assess benthic habitats in the Offshore Canning and Roebuck basins. Video was recorded at 12 sites, with durations ranging from 10 to 60 minutes per site.

Use Cases

• Detect potential hydrocarbon seepage sites based on visual evidence from underwater footage.
• Analyze modern sedimentary and oceanographic processes influencing the shelf based on video observations.
• Assess benthic habitat types and biodiversity based on the unclipped video recordings.
• Calibrate spatial measurements using the reported 25 cm laser point spacing visible in the video.

Strengths

• Video footage totals approximately 5.5 hours, providing substantial visual data.
• Survey was conducted over a defined period from 29 May to 22 June 2006.
• Footage includes laser points reported to be spaced at 25 cm for calibration.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Video is unclipped and contains descent and ascent through the water column, which may require significant preprocessing.

Provenance

Source

Australian Ocean Data Network

Collection Method

Underwater video captured during the RV Southern Surveyor survey SS06/2006 (GA-2408).

Time Range

29 May to 22 June 2006

Freshness

Last updated 2026-05-05 02:01:36.044372; freshness should be verified.

Geography

Rowley Shoals, Offshore Canning and Roebuck basins