Marine Geospatial Data for Seafloor Exploration, Including MH370 Search Areas

Geoscience Australia's web service contains marine geospatial data including bathymetry, backscatter, and marine sediment layers. It incorporates 150 m and optimal resolution bathymetry, plus 5 m sidescan sonar and synthetic aperture sonar data from phase 1 and 2 surveys for Malaysian Airlines Flight MH370 in the Indian Ocean. The service allows exploration of seafloor topography compiled from multibeam sonar and other marine datasets.

Use Cases

• Modeling seafloor topography and roughness based on bathymetry and backscatter gridded data.
• Planning marine survey missions based on bathymetry collection priority and planning areas.
• Analyzing sediment distribution and composition based on marine sediment data layers.
• Investigating specific search areas in the Indian Ocean based on high-resolution sonar data from the MH370 mission.

Strengths

• Includes high-resolution data layers such as 5 m sidescan sonar and synthetic aperture sonar.
• Compiles data from specific, documented surveys including the multinational MH370 search effort.
• Contains derived products like bathymetry coverage information and sediment data for analysis.

Limitations

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

Provenance

Source

Geoscience Australia Data

Collection Method

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

Freshness

Last updated 2026-04-30 14:15:21.537989; freshness should be verified.

Geography

Includes the Indian Ocean, specifically areas surveyed for Malaysian Airlines Flight MH370.