CTD Camera Images from the 2021 TEMPO Antarctic Ocean Voyage

Seafloor images were collected during every full-depth CTD deployment on the RV Investigator's TEMPO voyage from January to March 2021. The dataset contains the highest-quality images from each deployment, captured using a Canon HFG10 camera mounted to the CTD frame. The research aimed to investigate krill activity in abyssal environments of the East Antarctic sector.

Use Cases

• Detect and classify krill presence near the seafloor based on the deep-sea imagery.
• Analyze benthic substrate composition and features from the seafloor images.
• Study the relationship between oceanographic CTD data and visual seafloor observations.
• Assess the impact of ship and cable motion on seafloor image capture consistency.

Strengths

• Images were captured during every full-depth CTD deployment, suggesting systematic coverage.
• Camera and lighting were activated with specific protocols (e.g., 25m above seafloor, images every 10 seconds).
• Dataset is associated with a defined research program (TEMPO) and voyage (IN2021_V01).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Images captured with a Canon HFG10 camera mounted to a CTD rosette frame during oceanographic deployments.

Time Range

29 January to 24 March 2021 (AEST)

Freshness

Last updated 2026-05-25 21:26:47.439552; freshness should be verified.

Geography

East Antarctic sector of the Southern Ocean, voyage from Hobart, Tasmania to Hobart.