Geoscience Australia's MARine Sediment database (MARS) provides seabed sediment data for the Australian Exclusive Economic Zone. The data includes percentages of carbonate, mud, sand, and gravel in sediment samples, gridded using ArcGIS Inverse Distance Squared Weighted methodology. The dataset was last updated on 2026-05-14.
Use Cases
- Model seabed habitat suitability based on sediment composition percentages.
- Analyze sediment transport and deposition patterns based on mud, sand, and gravel fractions.
- Map carbonate distribution for geological or climate studies.
- Validate or supplement regional oceanographic models with gridded seabed data.
Strengths
- Data originates from Geoscience Australia's authoritative MARS database.
- Covers the entire Australian Exclusive Economic Zone.
- Includes key sediment parameters: carbonate, mud, sand, and gravel percentages.
- Gridded using a defined spatial interpolation method (ArcGIS Inverse Distance Squared Weighted).
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
- Freshness should be verified despite the 2026-05-14 update timestamp.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Extracted from the MARS database and gridded using ArcGIS Inverse Distance Squared Weighted methodology.
- Time Range
- null
- Freshness
- Last updated 2026-05-14 08:47:10.226228.
- Geography
- Australian Exclusive Economic Zone