RV Investigator Voyage IN2021_E02: Seafloor Bathymetry and Backscatter Data

The Australian Ocean Data Network provides multibeam echosounder data from the RV Investigator voyage IN2021_E02. The dataset contains 32 files (12.2 GB) of raw bathymetry and backscatter data and 30 files (39.7 GB) of watercolumn backscatter data collected east of Tasmania and around Freycinet Marine Park between November 20 and 28, 2021. Data were acquired using a Kongsberg EM710 MKII echosounder and have been processed with motion, tide, and outlier corrections.

Use Cases

• Map seafloor bathymetry based on processed multibeam echosounder data.
• Analyze acoustic backscatter intensity for seafloor characterization.
• Study watercolumn backscatter features mentioned in the description.
• Calibrate marine survey equipment using the described trial and calibration data.

Strengths

• Data includes 12.2 GB of raw bathymetry/backscatter and 39.7 GB of watercolumn backscatter data.
• Data were corrected for motion, position, and tide using RTK/GPS and geoid models.
• Processed data is available in multiple formats including GeoTIFF grids and ASCII.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-06-23 02:33:09.571513; freshness should be verified.

Provenance

Source

Australian Ocean Data Network

Collection Method

Collected via Kongsberg EM710 MKII multibeam echosounder onboard RV Investigator.

Time Range

November 20 to November 28, 2021

Freshness

Last updated 2026-06-23 02:33:09.571513

Geography

East of Tasmania and around Freycinet Marine Park