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

The Tasman Sea off Tasmania was surveyed in 1994 during AGSO Cruise 125 using the French research vessel L'Atalante. The cruise collected swath-mapping and reflection seismic data, producing bathymetric maps at scales from 1:1,000,000 to 1:100,000, including sonar imagery and contour maps. Data were recorded on transits from Auckland to Adelaide and during a detailed survey off the Tasmanian coast.

Use Cases

• Analyze seafloor bathymetry and morphology based on the detailed contour maps mentioned in the description.
• Study sonar imagery overlays to identify seabed features and textures.
• Map regional geological structures using the reflection seismic data collected during the cruise.
• Assess fisheries habitat areas using the high-resolution 1:100,000 scale maps produced for specific zones.

Strengths

• Data collection utilized the SIMRAD EM12D system, noted for its wide-angle swath-mapping capability.
• Maps were produced at multiple standard scales, including 1:250,000, 1:1,000,000, and 1:100,000.
• The survey covers a defined geographic area off Tasmania and includes transit data from New Zealand to Adelaide.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Collected via a marine research cruise using swath-mapping and reflection seismic systems.

Time Range

12 February 1994 to 29 March 1994

Freshness

Last updated 2026-04-20 01:29:20.560296; freshness should be verified.

Geography

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