PS141 EASI-3: Seabed Glacial Geomorphology Features from East Antarctic Shelf

East Antarctic continental shelf between 85°E and 115°E, offshore of the Aurora subglacial basin and Shackleton Ice Shelf. It contains preliminary mapping results from over 10,000 nautical miles of hydroacoustic data collected during the RV Polarstern expedition PS141 in early 2024. The dataset reveals submerged glacial features and was prepared by the Australian Ocean Data Network for a 2024 conference.

Use Cases

• Mapping past ice sheet grounding lines based on grounding zone wedge features
• Analyzing iceberg distribution and dynamics based on iceberg scour patterns
• Reconstructing paleo-ice flow directions based on mega-scale glacial lineations
• Modeling subglacial basin influence on ice sheet stability

Strengths

• Over 10,000 nautical miles of new hydroacoustic data were collected
• Covers a target area off the vulnerable Aurora subglacial basin and Shackleton Ice Shelf
• Data was collected during a dedicated scientific expedition in 2024

Limitations

• Data is presented as preliminary results in a PDF format, limiting direct analysis
• Column-level documentation is absent; field semantics must be inferred after download
• Row count and dataset scale are unknown, which may limit suitability assessment

Provenance

Source

Australian Ocean Data Network

Collection Method

Hydroacoustic data (multibeam and sub-bottom profiles) collected by RV Polarstern expedition PS141

Time Range

Data collected from 6 February to 14 April 2024

Freshness

Last updated 2026-04-16 09:33:50.276421; freshness should be verified

Geography

Davis and Mawson Seas, East Antarctic margin between Wilhelm II and Wilkes Land (85°E to 115°E)