RV Investigator Antarctic Voyage Multibeam Echosounder Data

47 raw data files totaling 15.82GB were collected by the Kongsberg EM710 MKII multibeam echosounder during the RV Investigator voyage IN2021_V01 from January to March 2021. The data includes seafloor bathymetry, backscatter, and watercolumn backscatter, primarily for assessing mooring deployment sites near the Antarctic shelf-break. Processed data products are available in formats including GeoTIFF grids and ASCII line data.

Use Cases

• Mapping seafloor bathymetry based on processed GeoTIFF grids.
• Analyzing acoustic backscatter intensity for seabed characterization.
• Assessing water column backscatter data for krill or other biological studies.
• Evaluating mooring site suitability based on high-resolution bathymetric surveys.
• Conducting geospatial analysis of Antarctic shelf-break regions.

Strengths

• Data totals 15.82GB across 47 files, indicating substantial raw data volume.
• Processed data includes multiple formats (GSF, ASCII, GeoTIFF) for different analysis needs.
• Bathymetry data was corrected for motion, position, and reduced to Mean Sea Level using the EGM2008 model.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data collection was for a short duration at the voyage's beginning and two short periods, limiting temporal coverage.
• Tide corrections were not applied to the processed data, which may affect vertical accuracy in some applications.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Collected by the Kongsberg EM710 MKII multibeam echosounder aboard the RV Investigator.

Time Range

Voyage departed 29 January 2021 and returned 24 March 2021.

Freshness

Last updated 2026-06-27 17:58:47.648169; freshness should be verified.

Geography

Primarily two locations near the Antarctic shelf-break: approx. 66°57.2'S, 75°00.5'E & 66°32'S, 62°13'E.