Geoscience Australia Marine Data: Bathymetry and Sonar Surveys for MH370 Search

Geoscience Australia's web service provides marine geospatial data, including bathymetry, backscatter, and sediment layers. It contains data from multibeam sonar and other marine surveys, including 150 m and optimal resolution bathymetry and 5 m sidescan sonar data collected during the multinational search for Malaysian Airlines Flight MH370 in the Indian Ocean. The service was last updated on 2026-06-27.

Use Cases

• Model seafloor topography based on compiled multibeam sonar data mentioned in the description.
• Analyze backscatter and sediment data for marine habitat or geological studies.
• Study high-resolution bathymetry and sidescan sonar data from the MH370 search area.
• Plan future marine surveys using bathymetry collection priority and planning area layers.

Strengths

• Includes data from multinational government surveys (Australia, Malaysia, China) for the MH370 search.
• Contains multiple data types: bathymetry grids, backscatter, sediment data, and derived products.
• Last updated on 2026-06-27, suggesting recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the specific survey areas.

Provenance

Source

Geoscience Australia, served via the Australian Ocean Data Network.

Collection Method

Compilation of multibeam sonar and other marine datasets acquired from government surveys.

Time Range

null

Freshness

Last updated 2026-06-27 18:57:47.885328; freshness should be verified.

Geography

Includes data from the Indian Ocean, specifically areas surveyed for MH370.