AGSO Cruise 125: Swath-Mapping and Seismic Data of the Tasman Sea, 1994

AGSO Cruise 125 collected swath-mapping and reflection seismic data during a 1994 voyage from Auckland to Adelaide aboard R.V. L'Atalante. The dataset includes maps at scales of 1:250,000, 1:1,000,000, and 1:100,000 covering transit routes and detailed survey areas off Tasmania. Maps feature ship tracks, sonar imagery, and bathymetric contours at 20, 25, and 50-meter intervals.

Use Cases

• Modeling seafloor bathymetry based on detailed contour maps mentioned in the description.
• Analyzing sonar imagery for geological feature identification as described in the map suite.
• Mapping ship tracks and survey coverage for cruise path planning and data context.
• Studying specific fisheries areas off Tasmania using the provided 1:100,000 scale maps.

Strengths

• Data collected using a SIMRAD EM12D system noted for its wide-angle swath-mapping capability.
• Maps produced at multiple scales (1:250,000, 1:1,000,000, 1:100,000) for different levels of detail.
• Includes multiple data layers such as ship tracks, sonar imagery, and contour maps (20m, 25m, 50m).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a single cruise in 1994; temporal coverage is limited.

Provenance

Source

Australian Ocean Data Network

Collection Method

Swath-mapping and reflection seismic survey conducted aboard the French research vessel R.V. L'Atalante.

Time Range

12 February 1994 to 29 March 1994

Freshness

Last updated 2026-04-10 18:31:59.688920; freshness should be verified.

Geography

Transit from Auckland, New Zealand to Adelaide, Australia, with detailed survey areas off Tasmania.