DEA Intertidal: Annual 10m Resolution Elevation and Exposure Maps for Australia's Coast

Digital Earth Australia Intertidal provides annual continental-scale elevation and exposure products for Australia's intertidal zone. The data is mapped at a 10-meter resolution from Landsat and Sentinel-2 satellite archives. It is produced by Geoscience Australia to support monitoring of dynamic coastal environments.

Use Cases

• Predicting coastal hazard impacts based on baseline elevation data for storm surges and sea-level rise.
• Investigating coastal erosion and sediment transport processes using annual topographic change data.
• Supporting habitat mapping and modeling for coastal ecosystems across the terrestrial-marine boundary.
• Characterizing spatio-temporal exposure patterns to support migratory shorebird and species studies.
• Integrating with existing topographic and bathymetric data to create seamless coastal elevation models.

Strengths

• Provides continental-scale coverage for Australia's entire intertidal zone.
• Offers a 10-meter spatial resolution, which is relatively detailed for satellite-derived continental products.
• Derived from long-term, open-source Landsat and Sentinel-2 satellite archives, enabling annual time-series analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and specific file sizes are unknown, which may limit suitability assessment for large-scale processing.
• Data may reflect temporal and sensor biases inherent to the optical satellite source platforms.

Provenance

Source

Geoscience Australia Data

Collection Method

Processed from Digital Earth Australia's archive of Landsat and Sentinel-2 satellite data.

Freshness

Last updated 2026-04-20 02:25:58.233962; freshness should be verified.

Geography

Australia's intertidal coastline