RV Investigator Voyage IN2018_V04: Seafloor Bathymetry and Backscatter Data

23 files totalling 11.1 GB of raw multibeam echosounder data collected during the RV Investigator voyage IN2018_V04 from September 11 to October 8, 2018. The Kongsberg EM710 MKII system acquired seafloor bathymetry, backscatter, and watercolumn backscatter data, which are stored in raw and processed formats by CSIRO. Processed data includes motion-corrected bathymetry grids and backscatter information.

Use Cases

• Generate high-resolution seafloor maps based on the bathymetry data.
• Analyze seafloor composition and texture using the backscatter information.
• Study water column acoustic targets or phenomena based on the watercolumn backscatter data.
• Conduct geospatial analysis of underwater terrain using the processed geotiff grids.

Strengths

• Data includes multiple processing streams with motion-corrected bathymetry and outlier removal.
• 23 raw data files provide 11.1 GB of detailed acoustic measurements.
• Data acquisition applied sound velocity profiles for accuracy.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Acquired via Kongsberg EM710 MKII multibeam echosounder during a dedicated research voyage.

Time Range

September 11, 2018 to October 8, -2018

Freshness

Last updated 2026-04-26 16:21:52.045566; freshness should be verified.

Geography

Southern extension of the East Australian Current, voyage departed and returned to Hobart.