Marine Geophysical Survey Data for the Australian Region, Levelled for Gridding

Data from the 1970s onward, this compilation contains gravity, magnetic, and bathymetry ship-track line data from Geoscience Australia and other institutions. The data has been levelled to reduce mismatches between surveys of various vintages, allowing integration into continuous surfaces. The final data were reviewed and released by Geoscience Australia.

Use Cases

• Modeling seafloor geology based on gravity and magnetic anomaly data.
• Creating continuous bathymetric maps from levelled ship-track data.
• Integrating multi-survey geophysical data for regional geological studies.
• Preparing time-indexed geospatial data for gridding and 3D visualization.

Strengths

• Includes data from the 1970s onward, providing a multi-decade temporal scope.
• Data has undergone a levelling process to reduce mismatches between intersecting surveys.
• Contains both unlevelled source data and the final levelled data for comparison.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The compilation does not include shot-indexed data from seismic reflection surveys.

Provenance

Source

Geoscience Australia and other institutions.

Collection Method

Derived from the Geoscience Australia marine geophysical survey database 'Mardat' and levelled for gridding.

Time Range

1970s onward

Freshness

Last updated 2026-04-30 14:50:45.593401; freshness should be verified.

Geography

Australian marine region