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Topographic Position Index derived from 1" SRTM DEM-S

Created 25/06/2025

Updated 25/06/2025

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Topographic Position Index (TPI) is a topographic position classification identifying upper, middle and lower parts of the landscape. This dataset includes a mask that identifies where topographic position cannot be reliably derived in low relief areas. The TPI product was derived from Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 arc-second resolution SRTM data acquired by NASA in February 2000. A masked version of the TPI product was derived using the slope relief classification product. The TPI data are available at 1 arc-second and 3 arc-second resolution. The 3 arc-second resolution dataset was generated from the 1 arc-second TPI product and masked by the 3” water and ocean mask datasets.

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Additional Info

Field Value
Title Topographic Position Index derived from 1" SRTM DEM-S
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/c3c592b6-f9fb-4153-a749-9acf4b554ffc
Contact Point
Terrestrial Ecosystem Research Network's Data Discovery
esupport@tern.org.au
Reference Period 11/02/2000 - 22/02/2000
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        113.0,
        -44.0
      ],
      [
        154.0,
        -44.0
      ],
      [
        154.0,
        -10.0
      ],
      [
        113.0,
        -10.0
      ],
      [
        113.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Terrestrial Ecosystem Research Network

Data Source

This dataset was originally found on Terrestrial Ecosystem Research Network "Topographic Position Index derived from 1" SRTM DEM-S". Please visit the source to access the original metadata of the dataset:
https://geonetwork.tern.org.au/geonetwork/srv/eng/csw/dataset/topographic-position-index-derived-from-1quot-srtm-dem-s