RV Investigator IN2025_V06: Echosounder Data from the Coral Sea Frontier

October 10 to November 14, 2025, acoustic backscatter data was collected on the RV Investigator voyage IN2025_V06, The Coral Sea Frontier. The dataset comprises 4,528 files totalling 109 GB of raw data from Simrad EK80 split-beam echosounders at 18, 38, 70, 120, 200, and 333 kHz, stored by CSIRO. Additional data products may be available on request.

Use Cases

• Estimate fish biomass and distribution based on multi-frequency acoustic backscatter.
• Study vertical migration patterns of marine organisms based on time-series acoustic data.
• Map water column features and plankton layers based on acoustic scattering layers.
• Calibrate acoustic models for species identification based on multi-frequency response.

Strengths

• Data spans a continuous voyage from October 10 to November 14, 2025.
• Contains 4,528 files totalling 109 GB of raw acoustic data.
• Includes multi-frequency data from six echosounder frequencies (18, 38, 70, 120, 200, and 333 kHz).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data freshness should be verified; last metadata update was 2026-07-09 23:37:12.970106.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Collected using Simrad EK80 split-beam echosounders on the RV Investigator research vessel.

Time Range

October 10, 2025 to November 14, 2025

Freshness

Last updated 2026-07-09 23:37:12.970106

Geography

Coral Sea Frontier, voyage departed from and returned to Brisbane, Australia.