AGSO Cruise 125: Swath-Mapping and Seismic Survey of Tasman Sea

Tasman Sea bathymetric and seismic data collected during the Tasmante cruise from February to March 1994. The Australian Ocean Data Network published the report, which includes maps produced from the French research vessel L'Atalante. The survey covers transit routes from New Zealand to Adelaide and detailed areas off the Tasmanian coast.

Use Cases

• Analyze seafloor bathymetry based on the described 25, 50, and 20-meter contour maps.
• Study sonar imagery overlays for geological feature identification mentioned in the description.
• Map detailed seafloor topography off Tasmania based on the 1:100,000 scale fishery area maps.
• Examine wide-angle swath-mapping data from the SIMRAD EM12D system referenced in the cruise report.

Strengths

• Data collection spanned a specific cruise from 12 February to 29 March 1994.
• Maps were produced at multiple scales, including 1:250,000, 1:1,000,000, and 1:100,000.
• The swath-mapping system is noted to have functioned well throughout the cruise.

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 and temporal bias inherent to the single 1994 cruise.

Provenance

Source

Australian Ocean Data Network

Collection Method

Swath-mapping and reflection seismic data collected by the French research vessel L'Atalante.

Time Range

12 February 1994 to 29 March 1994

Freshness

Last updated 2026-06-27 20:14:47.952012; freshness should be verified.

Geography

Tasman Sea, including transit from Auckland to Adelaide and detailed survey off Tasmania.