Tasman Sea Swath-Mapping and Seismic Survey Cruise Report

February to March 1994 data collection from the AGSO Cruise 125 aboard the R.V. L'Atalante. The report documents swath-mapping and reflection seismic surveys conducted off Tasmania and during transits between New Zealand and Australia. It was published by the Australian Ocean Data Network.

Use Cases

• Analyze seafloor bathymetry using the 25 m and 50 m contour maps.
• Study sonar imagery overlays to interpret seabed texture and composition.
• Map ship tracks and survey lines (C1-C7, T1-T9) for cruise path reconstruction.
• Examine high-resolution 1:100,000 scale maps for fisheries area bathymetry with 20 m contours.

Strengths

• Survey conducted over a 46-day period in 1994.
• Maps produced at multiple standard scales including 1:250,000, 1:1,000,000, and 1:100,000.
• Data covers a defined survey area off Tasmania and transit routes.

Limitations

• Data is from a single cruise in 1994 and may not reflect current conditions.
• Specific row counts and file sizes for underlying data are unknown.
• Primary deliverables are report documents (HTML, PDF), not raw data tables.

Provenance

Source

Australian Ocean Data Network

Collection Method

Swath-mapping and reflection seismic survey using the SIMRAD EM12D system aboard R.V. L'Atalante.

Time Range

12 February 1994 to 29 March 1994

Freshness

Report metadata last updated in April 2026, but underlying data is from 1994.

Geography

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