RV Investigator Voyage IN2026_V01: Multibeam Echosounder Bathymetry and Watercolumn Data

Australian waters were surveyed during the RV Investigator voyage IN2026_V01, titled 'Cook Ice Ecosystems and Sediments (COOKIES)', between January 02 and February 25, 2026. The dataset contains 11.7 GB of raw bathymetry and backscatter data and 58.1 GB of watercolumn backscatter data, collected using an EM2040MK2 multibeam echosounder. Data are stored in .kmall and .kmwcd formats and have been processed for motion, position, tide, and outliers.

Use Cases

• Generate high-resolution seafloor maps based on the bathymetry data.
• Analyze sediment types and seafloor composition based on backscatter intensity.
• Study water column acoustic features based on the watercolumn backscatter data.
• Model underwater topography for navigation or habitat mapping based on the processed bathymetry.

Strengths

• High-resolution angular resolution of 0.4 by 0.7 degrees from the EM2040MK2 echosounder.
• Data volume totals 69.8 GB (11.7 GB raw + 58.1 GB watercolumn), indicating substantial coverage.
• Data has been processed with sound velocity profiles, motion correction, GPS tide application, and outlier removal.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified; last updated 2026-06-16 19:28:59.405444.

Provenance

Source

Australian Ocean Data Network

Collection Method

Collected via EM2040MK2 multibeam echosounder aboard the RV Investigator.

Time Range

2026-01-02 to 2026-02-25

Freshness

Last updated 2026-06-16 19:28:59.405444

Geography

Voyage departed from and returned to Hobart, Australia; specific survey area not detailed.