East Antarctic Continental Shelf Glacial Features from Polarstern Expedition PS141

Hydroacoustic survey data from the RV Polarstern Expedition PS141 (February to April 2024) in the Davis and Mawson Sea region. The dataset includes over 7500 nautical miles of multibeam bathymetry and sediment echography data, revealing glacial landscapes like iceberg scours and grounding zone wedges. Preliminary results were presented at the 2nd International Conference on Seafloor Landforms, Processes and Evolution in 2024.

Use Cases

• Reconstructing past ice sheet dynamics based on mapped glacial lineations and grounding zone wedges.
• Analyzing sediment transport pathways based on features identified from the hydroacoustic surveys.
• Modeling ice-ocean interactions along the East Antarctic margin using bathymetric data.
• Comparing glacial landscapes between the East and West Antarctic Ice Sheets based on the described features.

Strengths

• Covers a largely unexplored area of the East Antarctic continental shelf between 85°E and 115°E.
• Includes over 7500 nautical miles of continuous hydroacoustic survey data.
• Reveals a variety of specific glacial features, including iceberg scours and subglacial lakes.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is presented as preliminary results in a PDF format, which may limit direct analysis.

Provenance

Source

Australian Ocean Data Network, from RV Polarstern Expedition PS141.

Collection Method

Collected via continuous multibeam bathymetry and sediment echography surveys during the EASI-3 expedition.

Time Range

Data collected from 06.02.2024 to 14.04.2024.

Freshness

Last updated 2026-04-10 19:58:18.963825; freshness should be verified.

Geography

Davis and Mawson Sea continental shelves, East Antarctica, between 85°E and 115°E.