IN2025_V06: Multibeam Echosounder Bathymetry and Watercolumn Data from the Coral Sea

October 10 to November 14, 2025, multibeam echosounder data was collected during the RV Investigator voyage IN2025_V06 in the Coral Sea. The dataset includes 18.3 GB of raw bathymetry and backscatter data and 100 GB of watercolumn backscatter data, stored in .kmall and .kmwcd formats. Data was processed with motion correction, GPS tide application, and outlier removal by the Australian Ocean Data Network.

Use Cases

• Generate high-resolution seafloor bathymetric maps based on the processed multibeam data.
• Analyze acoustic backscatter intensity for seabed composition classification.
• Study water column acoustic backscatter features mentioned in the description.
• Integrate corrected bathymetry with oceanographic models using the applied GPS tide and sound velocity profiles.

Strengths

• Data collection spans a defined 35-day voyage from October 10 to November 14, 2025.
• Includes 18.3 GB of raw bathymetry data and 100 GB of watercolumn data across 98 total files.
• Processed data has been corrected for motion, position, and GPS tide, with outliers removed.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Coral Sea survey area.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Collected via an EM2040MK2 multibeam echosounder aboard the RV Investigator research vessel.

Time Range

2025-10-10 to 2025-11-14

Freshness

Last updated 2026-07-10 00:24:46.916194; freshness should be verified.

Geography

Coral Sea, voyage departed from and returned to Brisbane, Australia.