The Australian Ocean Data Network provides raw seafloor images and metadata collected during the RV Investigator's TEMPO voyage from January to March 2021. A deep-sea camera mounted on a CTD rosette captured images to investigate krill activity near the seabed in the East Antarctic sector of the Southern Ocean. The dataset includes the highest-quality image(s) from each full-depth CTD deployment.
Use Cases
- Analyze krill presence and behavior in abyssal environments based on deep-sea imagery.
- Study seafloor composition and features in the East Antarctic region based on collected images.
- Correlate biological observations with oceanographic data from concurrent CTD deployments.
- Assess the impact of ship and cable motion on image consistency for seafloor survey methodologies.
Strengths
- Images were collected during every full-depth CTD deployment throughout the voyage.
- Camera and lighting were activated 25 m above the seafloor, with focus adjustments documented.
- The highest-quality image(s) from each deployment have been selected for inclusion.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Images captured with a Canon HFG10 camera mounted to a CTD frame during deployments.
- Time Range
- 29 January to 24 March 2021 (AEST)
- Freshness
- Last updated 2026-06-23 00:50:30.602404; freshness should be verified.
- Geography
- East Antarctic sector of the Southern Ocean