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ANZLIC National Nested Grids for NSW

Created 06/06/2025

Updated 06/06/2025

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This set of aligned GeoTIFF GIS template rasters (also called grids) covering NSW and ACT that are aligned with the Australian ANZLIC National Nested Grid (NNG). See link in resources section for more information on the NNG. There are four sets of rasters aligned to the NNG, two in Albers projection, and two series of geographic (latitude, longitude) rasters with grid cell sizes defined in terms of decimal degrees (dd) and degrees, minutes and seconds (dms). Albers projection is often used to generate area statistics because each grid cell is equal in area. Unless there is a need to nest the Albers grids within a 10km or 5km grids it is recommended you use the series nested within the 9km grid cells. Benefits of aligning rasters to the NNG include: Calculating areas: Once raster models have been built, there is often a need to report on areas of each model class within classes from another data layer, such as tenure or administrative regions. To obtain accurate area calculations it is necessary to re-project the raster into an equal area projection, such as Albers which is the projection used by the NNG.
Reduces spatial errors: Every time a raster is projected each grid cell is moved and you introduce spatial errors (<= 0.5 x cell size). If all the input grids for an analysis are already aligned, this will reduce potential spatial errors in analysis or model outputs. Reduces processing times: A prerequisite or undertaking any analysis involving multiple rasters is that the grid cells in each one are spatially aligned. If all the input rasters for an analysis are already aligned, this will reduce processing time required to align them. Aligning with national raster products: There are an increasing number of national products aligned to the NNG. For example ABS uses the NNG when generating a national grid of population and ABARES landuse data. CSIRO and TERN are also aligning their grid products to the NNG.

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Additional Info

Field Value
Title ANZLIC National Nested Grids for NSW
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://devweb.dga.links.com.au/data/dataset/3ed8202a-f3c7-429c-a9ad-1138684b441a
Remote Last Updated 26/02/2024
Contact Point
NSW Department of Climate Change, Energy, the Environment and Water
test@email.loc
Reference Period 13/06/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        139.74609375,
        -37.99616267972812
      ],
      [
        139.74609375,
        -27.527758206861886
      ],
      [
        154.16015625,
        -27.527758206861886
      ],
      [
        154.16015625,
        -37.99616267972812
      ],
      [
        139.74609375,
        -37.99616267972812
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal DataNSW

Data Source

This dataset was originally found on DataNSW "ANZLIC National Nested Grids for NSW". Please visit the source to access the original metadata of the dataset:
https://data.nsw.gov.au/data/dataset/nsw-anzlic-national-nested-grids-for-nsw