RV Investigator IN2026_V01: Antarctic Seafloor Bathymetry and Watercolumn Backscatter

Antarctic seafloor bathymetry and watercolumn backscatter data collected by the Kongsberg EM712 multibeam echosounder aboard the RV Investigator. The voyage IN2026_V01, titled 'Cook Ice Ecosystems and Sediments (COOKIES),' took place from January 02 to February 25, 2026, departing from and returning to Hobart. The dataset consists of 158 raw bathymetry files totaling 15.7 GB and 158 watercolumn backscatter files totaling 30.1 GB, stored by the Australian Ocean Data Network.

Use Cases

• Map seafloor bathymetry based on processed multibeam echosounder data.
• Analyze seafloor composition based on backscatter intensity information.
• Study water column scattering layers based on watercolumn backscatter data.
• Model tidal corrections based on GPS tide computed using the EGM2008 model.

Strengths

• Data includes 158 raw bathymetry files totaling 15.7 GB and 158 watercolumn files totaling 30.1 GB.
• Bathymetry data is corrected for vessel 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

Australian Ocean Data Network

Collection Method

Collected using a Kongsberg EM712 multibeam echosounder aboard RV Investigator.

Time Range

January 02, 2026 to February 25, 2026

Freshness

Last updated 2026-06-23 02:54:19.094204; freshness should be verified.

Geography

Antarctica survey area