Dataset

Intertidal Extents Model Collection

Please Note: ITEM v2.0 has now been published and can be accessed on the link provided Note: This is collection-level record. For access to individual data sets, please navigate to them using the hyperlinks on this page.
The Intertidal Extents Model (ITEM v1.0) product is a national scale gridded dataset characterising the spatial extents of the exposed intertidal zone, at intervals of the observed tidal range. The current version utilises all Landsat observations (5, 7, and 8) for Australian coastal regions (excluding off-shore Territories) between 1987 and 2015 (inclusive). The Intertidal Extents Model (ITEM v1.0) consists of three datasets derived from the Landsat NBAR data managed in the Australian Geoscience Data Cube (AGDC) for the period 1987 to 2015.

Data and Resources

HTML

ITEM Version 2.0
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Intertidal Extents Model Confidence Layer
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Intertidal Extents Model Coastal Cells shapefile
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Intertidal Extents Model Relative Extents Model
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PDF

Product Description (pdf)
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Additional Information

Field	Value
Published (Metadata Record)	02/03/2026
Last updated	03/03/2026
Organisation	Australian Federal Government
License	License Not Specified
Update Frequency	Unknown