RV Investigator IN2021_E02: Seafloor Bathymetry and Backscatter Data East of Tasmania

East of Tasmania and the Freycinet Marine Park, the Kongsberg EM710 MKII multibeam echosounder collected seafloor bathymetry, backscatter, and watercolumn backscatter data. The dataset comprises 32 raw bathymetry files (12.2 GB) and 30 watercolumn files (39.7 GB), collected from November 20 to 28, 2021, during an equipment calibration voyage for the RV Investigator. Data were processed with motion, tide, and sound velocity corrections and are stored in multiple formats by the Australian Ocean Data Network.

Use Cases

• Model seafloor topography based on processed bathymetry grids in geotiff format.
• Analyze seafloor composition based on backscatter intensity data.
• Study water column acoustic features based on the watercolumn backscatter (.wcd) data.
• Calibrate or validate other marine survey equipment based on the high-resolution multibeam data.

Strengths

• Data were corrected for motion, position, tides, and sound velocity during processing.
• Processed data has had outliers removed, indicating a quality control step.
• The multibeam echosounder provides high angular resolution (0.5° by 1°).

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 via Kongsberg EM710 MKII multibeam echosounder aboard the RV Investigator.

Time Range

November 20 to November 28, 2021

Freshness

Last updated 2026-04-10 21:46:13.194641; freshness should be verified.

Geography

East of Tasmania and around Freycinet Marine Park