From Geoscience Australia
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Benthic Position Index Grid of Darwin Harbour

Created 17/10/2025

Updated 17/10/2025

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The Benthic (Topographic) Position Index (Weiss 2001) grid indicates the topographic positions of the cells. Positive TPI values represent locations that are higher than the average of their surrounding (ridges); negative TPI values represent locations that are lower than their surrounding (valleys); TPI values near zero are either flat areas or areas of constant slope. The benthic position index grid was derived from the bathymetry grid of Darwin Harbour. Please see the metadata of the bathymety grid for more details (GeoCat No: 74915). Weiss, A.D., 2001. Topographic position and landforms analysis. In: ESRI international user conference, 9-13 July 2001, San Diego, CA.

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Additional Info

Field Value
Title Benthic Position Index Grid of Darwin Harbour
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/331bde13-7812-45e5-8e0d-4d57f44c92e5
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 23/02/2013 - 23/02/2013
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        130.69,
        -12.59
      ],
      [
        130.94,
        -12.59
      ],
      [
        130.94,
        -12.32
      ],
      [
        130.69,
        -12.32
      ],
      [
        130.69,
        -12.59
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Benthic Position Index Grid of Darwin Harbour". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/benthic-position-index-grid-of-darwin-harbour1