RV Investigator Antarctic Seafloor Bathymetry and Watercolumn Data, Jan-Feb 2026

January 02 to February 25, 2026, the RV Investigator voyage IN2026_V01 collected multibeam echosounder data around Antarctica. The dataset contains 15.7 GB of raw bathymetry and backscatter data and 30.1 GB of watercolumn backscatter data, processed for motion and tide corrections. Data are stored by the CSIRO Marlin Data Catalogue.

Use Cases

• Mapping seafloor bathymetry based on the Kongsberg EM712 echosounder data.
• Analyzing seafloor composition based on backscatter information.
• Studying water column acoustic properties based on watercolumn backscatter data.
• Investigating Antarctic marine ecosystems based on the 'Cook Ice Ecosystems and Sediments' survey area.

Strengths

• 158 files totalling 15.7 GB of raw bathymetry data provide substantial volume.
• Data has been corrected for motion, position, and GPS tide using the EGM2008 model.
• Sound velocity profiles were applied during acquisition, and processed data has had outliers removed.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Collected via Kongsberg EM712 multibeam echosounder aboard RV Investigator.

Time Range

January 02, 2026 to February 25, 2026

Freshness

Last updated 2026-06-13 05:48:55.480344; freshness should be verified.

Geography

Antarctica survey area