Seafloor Still Images from Antarctic Mertz Glacier Voyage

Underwater still images were collected from 93 sites during a 2011 marine science voyage to East Antarctica. The Australian Antarctic Division marine science support team operated the camera equipment, which was deployed on oceanographic frames. Images were captured between January 4 and February 6, 2011, across depths from 170 meters to 2300 meters on the George V shelf.

Use Cases

• Classify benthic organisms and substrate types using visual features from the seafloor images.
• Analyze species distribution and biodiversity relative to recorded deployment depth and station location.
• Correlate visual seafloor observations with concurrent oceanographic measurements from the CTD frame.
• Study temporal changes in the benthic community by comparing image timestamps and station sequences like BT5_CAM16.
• Map seafloor characteristics across the George V shelf using georeferenced image sites.

Strengths

• Images from 93 distinct sampling sites provide spatial coverage.
• Depth range spans from 170 m to 2300 m, covering multiple oceanographic zones.
• Each image is stamped with precise UTC time for temporal analysis.
• Deployment details are systematically recorded in station names (e.g., CTD53, BT5_CAM16).

Limitations

• Specific row count, image resolution, and total file size are unknown.
• Data is from a single voyage in 2011, limiting temporal analysis to that period.
• Geographic coverage is focused solely on the George V shelf and Mertz Glacier region in East Antarctica.

Provenance

Source

Australian Ocean Data Network, collected by the Australian Antarctic Division marine science support team.

Collection Method

Camera attached to CTD or beam trawl frames lowered to 4-5 m from seafloor, held for 2-15 minutes per deployment.

Time Range

January 4, 2011 to February 6, -2011.

Freshness

Metadata was last updated in April 2026, but the underlying data is from 2011.

Geography

George V shelf in East Antarctica, around the Mertz Glacier region.