Digital Earth Australia Intertidal: Continental-Scale Coastal Elevation and Exposure Maps

Annual continental-scale elevation and exposure data for Australia's intertidal zone, mapped at a 10-meter resolution. The product suite is derived from Digital Earth Australia's archive of open-source Landsat and Sentinel-2 satellite data. It is provided by the Australian Ocean Data Network and was last updated in April 2026.

Use Cases

• Integrating elevation data with topographic and bathymetric datasets to map the coastal zone seamlessly.
• Predicting the impact of coastal hazards like storm surges and tsunamis based on baseline elevation data.
• Investigating coastal erosion and sediment transport processes using dynamic exposure patterns.
• Supporting habitat mapping and modeling for ecosystems spanning the terrestrial-marine boundary.
• Characterizing spatio-temporal exposure patterns to support migratory species studies and conservation.

Strengths

• Continental-scale coverage of Australia's entire intertidal zone.
• Annual products provide a time series for monitoring change.
• 10-meter spatial resolution derived from Landsat and Sentinel-2 satellite imagery.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Freshness should be verified as the last update date is in the future (2026).

Provenance

Source

Digital Earth Australia (DEA), Australian Ocean Data Network

Collection Method

Derived from open-source Landsat and Sentinel-2 satellite data archives.

Time Range

Annual products, specific start year unknown.

Freshness

Last updated 2026-04-10 18:40:42.777659

Geography

Australia's intertidal zone.