Antarctic Seafloor Biodiversity Predictions with 2km Environmental Layers

Environmental data layers for baseline Antarctic seafloor biodiversity predictions compile spatial data from various sources, projected to polar stereographic (EPSG:3031) at a 2km resolution. The dataset includes layers for seafloor depth, slope, topographic position index, distance to underwater canyons, ocean surface productivity, seafloor currents, temperature, salinity, and modelled food availability. The Australian Ocean Data Network hosts this dataset, which was last updated on 2026-07-13.

Use Cases

• Predicting species distribution patterns based on seafloor depth, slope, and topographic position index.
• Modelling benthic community structure based on seafloor water current speeds, temperature, and salinity.
• Assessing habitat suitability for seafloor organisms based on modelled availability of ocean surface-derived food.
• Analyzing the influence of underwater canyon proximity on biodiversity based on distance to the nearest canyon head.

Strengths

• All data layers are projected to a consistent polar stereographic coordinate system (EPSG:3031).
• Data layers are provided at a uniform 2km spatial resolution.
• The description lists multiple specific environmental variables, including seafloor depth, slope, and ocean surface net primary productivity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-07-13 20:17:59.760895; freshness should be verified.

Provenance

Source

Australian Ocean Data Network

Collection Method

Compiled from various spatial data sources.

Freshness

Last updated 2026-07-13 20:17:59.760895

Geography

Antarctic seafloor