AGSO Cruise 125: Swath-mapping and Seismic Survey of the Tasman Sea, 1994

AGSO Cruise 125 collected swath-mapping and reflection seismic data in the Tasman Sea off Tasmania in February-March 1994 using the French research vessel L'Atalante. The dataset likely contains maps at scales of 1:250,000, 1:1,000,000, and 1:100,000, including ship tracks, sonar imagery, and bathymetric contours. The data was aggregated by the Australian Ocean Data Network.

Use Cases

• Analyze seafloor bathymetry and morphology based on the detailed contour maps mentioned in the description.
• Study tectonic features and geological structures based on the reflection seismic data collected during the cruise.
• Create regional seafloor maps based on the 1:1,000,000 scale bathymetry and imagery covering the entire survey area.
• Support fisheries research based on the 1:100,000 scale maps of specific fisheries areas off Tasmania.

Strengths

• Data was collected using a vessel with wide-angle swath-mapping capability (SIMRAD EM12D system), which likely provides high-resolution coverage.
• Maps were produced at multiple scales (1:250,000, 1:1,000,000, 1:100,000) for different purposes, offering flexibility in analysis.
• The cruise covered a specific temporal range from 12 February 1994 to 29 March 1994, providing a focused snapshot.

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 the specific 1994 cruise and data_gov_au source.

Provenance

Source

Australian Ocean Data Network

Collection Method

Swath-mapping and reflection seismic survey conducted from the research vessel L'Atalante.

Time Range

12 February 1994 to 29 March 1994

Freshness

Last updated 2026-04-28 13:26:29.587027; freshness should be verified.

Geography

Tasman Sea off Tasmania, with transits from Auckland to Adelaide.