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DEPRECATED - Intertidal Extents Model 25m v. 2.0.0

Created 17/10/2025

Updated 17/10/2025

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This record has been superseded by eCat 149403 The Intertidal Extents Model (ITEM) product is a national dataset of the exposed intertidal zone; the land between the observed highest and lowest tide. ITEM provides the extent and topography of the intertidal zone of Australia's coastline (excluding off-shore Territories). This information was collated using observations in the Landsat archive since 1986. ITEM can be a valuable complimentary dataset to both onshore LiDAR survey data and coarser offshore bathymetry data, enabling a more realistic representation of the land and ocean interface.

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Additional Info

Field Value
Title DEPRECATED - Intertidal Extents Model 25m v. 2.0.0
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/66c16fb8-e013-4f46-a81f-fa4f1129350e
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 16/08/1986 - 31/07/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        -1943830.0,
        -1119030.0
      ],
      [
        2170690.0,
        -1119030.0
      ],
      [
        2170690.0,
        -4856630.0
      ],
      [
        -1943830.0,
        -4856630.0
      ],
      [
        -1943830.0,
        -1119030.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "DEPRECATED - Intertidal Extents Model 25m v. 2.0.0". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/deprecated-intertidal-extents-model-25m-v-2-0-0