Voyage Marine Science: Underwater Still Images from the Mertz Glacier Region

Underwater still images were collected from 93 sites during the 2011 Marine Science voyage on the Aurora Australis. The camera was operated by the Australian Antarctic Division, deployed on CTD or beam trawl frames at depths from 170 m to 2300 m near the Mertz Glacier. Images are timestamped with UTC and stations are named according to a specific deployment and instrument naming convention.

Use Cases

• Classifying benthic fauna and substrate types based on seafloor imagery.
• Analyzing species distribution across depths from 170 m to 2300 m.
• Correlating image data with oceanographic measurements from the CLIVAR SR3 Transect.
• Studying the impact of glacial regions on marine ecology using geotagged imagery.

Strengths

• Images collected from 93 distinct sites, providing spatial coverage.
• Depth range spans from 170 m to 2300 m across the George V shelf.
• Each image is stamped with precise UTC time for temporal alignment.
• Deployment methodology is described, with camera held 4-5 m from seafloor for 2-15 minutes.

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, Australian Antarctic Division

Collection Method

Camera attached to CTD or beam trawl frames and lowered to the seafloor.

Time Range

4 January 2011 to 6 February 2011

Freshness

Last updated 2026-04-16 09:53:56.767072; freshness should be verified.

Geography

George V shelf in East Antarctica, Mertz Glacier region