AGSO Cruise 210: Swath-Mapped Seabed Morphology off Eastern Tasmania
Updated 2mo ago
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Description
From 10 to 17 April 1997, the Australian Geological Survey Organisation (AGSO) conducted a marine survey using the R.V. Melville to map the seabed east and northeast of Tasmania, including the deep-water Gippsland Basin. The survey employed a SeaBeam 2000 multibeam sonar system, a magnetometer, and a gravity meter to collect data on seabed morphology, roughness, and geophysical properties. Its aims included supporting tectonic and sedimentological studies, aiding the fishing industry, and planning future geological sampling.
Use Cases
Analyzing seabed morphology and roughness for tectonic studies based on multibeam sonar swath-mapping.
Planning future seismic profiling and geological sampling missions using the collected bathymetric and geophysical data.
Aiding fisheries management by mapping seabed character in selected areas off eastern Tasmania.
Conducting basin analysis in the Gippsland Basin using integrated magnetometer and gravity meter readings.
Strengths
High-precision navigation with military GPS providing approximately 5-meter accuracy.
Detailed temporal and spatial scope: survey conducted over a specific 8-day period in a defined region off Tasmania.
Employed advanced SeaBeam 2000 multibeam sonar capable of swath-mapping a width 3.5 times the water depth.
Limitations
Metadata completeness is low: specific column names, row counts, file sizes, and data license are not provided.
The primary data format is a PDF/HTML report, which may limit direct machine-readability of the underlying geospatial measurements.
Data freshness is unclear; the metadata was last updated in 2026, but the survey itself is from 1997.
Provenance
Source
Australian Geological Survey Organisation (AGSO), now Geoscience Australia, using the R.V. Melville chartered from Scripps Institution of Oceanography.
Collection Method
Marine survey employing SeaBeam 2000 multibeam sonar, a magnetometer, and a gravity meter.
Time Range
1997-04-10 to 1997-04-17
Freshness
Last updated metadata: 2026-04-30 12:45:27.026456
Geography
Sea bed east and northeast of Tasmania, including the deep water part of the Gippsland Basin.
The dataset appears as a cruise report (PDF/HTML) rather than raw, structured data tables. Platform metadata indicates multiple entries with slight timestamp variations.