Australian Marine Physical Variables With Metadata And Distribution Maps

37 marine physical environmental variables were collated for surrogacy and predictive modelling research. The dataset includes bathymetry, seabed sediments, seabed exposure, and water parameters, produced by Geoscience Australia and CSIRO. Metadata reports conform to ANZLIC standards and were last updated in April 2026.

Use Cases

• Model seabed exposure using output from the GEOMACS seabed shear stress model.
• Analyze spatial patterns of seabed sediment types derived from the MARS database.
• Correlate bottom-water nutrient and temperature data from the CARS database with species distributions.
• Map bathymetry and geomorphology features from the 250m resolution National Bathymetry Grid.
• Integrate surface-water parameters derived from satellite imagery with other environmental layers.

Strengths

• 37 distinct physical variables provide a multi-faceted environmental description.
• All data are standardized to a common WGS84 datum and a 0.01-degree grid cell size.
• Includes distribution maps and ANZLIC-standard metadata for each variable.

Limitations

• The dataset is metadata and descriptions; access to the underlying raw raster or vector files is not described.
• Specific temporal coverage for each derived variable is not provided.
• Data volume and specific file formats for the core spatial data are unknown.

Provenance

Source

Marine Biodiversity Hub (Commonwealth Environment Research Facilities Program), Geoscience Australia, CSIRO Marine and Atmospheric Division.

Collection Method

Variables were collated or specifically generated from existing databases and models, then transformed to a common grid.

Time Range

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Freshness

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Geography

Australian marine region.