From Western Australia Government
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Christmas Island Laser DEM Shiny Colour Drape Images - 2011

Created 23/06/2025

Updated 23/06/2025

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In 2011 AAM was commissioned by the Commonwealth to fly an airborne laser scanning survey of Christmas Island. The provided 1km by 1km ESRI grids were stitched together using ESRI ArcMap 10 to form 2km by 2km tiles. In some cases the tiles are 3km by 2km to accomodate DEM grids with less than approximately 30% land cover. Using the software program ER Mapper 7.1, a wet look shiny colour drape algorthim and a HSI algorithm were applied to each of the 48 tiles.The colour range has been optimized for each individual tile to provide maximum information and clarity of features such as slopes, depressions, hills, cliffs and mining relics. A consequence of this is that colours may not match at adjoining edges. The resulting images were saved as compressed ecw format. The positional accuracy is the same as the accuracy of the 2011 digital elevation model. As a guide, the DEM data is vertically accurate to 15cm and horizontally accurate to 30cm. Disclaimer

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Additional Info

Field Value
Title Christmas Island Laser DEM Shiny Colour Drape Images - 2011
Language English
Licence Creative Commons Attribution Share Alike 4.0 International
Landing Page https://data.gov.au/data/dataset/24eb530f-188d-456d-8d06-cd55cf8027c8
Remote Last Updated 26/05/2022
Contact Point
Department of Infrastructure, Transport, Cities and Regional Development
iotgis@ga.gov.au
Reference Period 28/05/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        [
          105.24078369140626,
          -10.76267366235437
        ],
        [
          105.24078369140626,
          -10.211732725581497
        ],
        [
          105.94116210937501,
          -10.211732725581497
        ],
        [
          105.94116210937501,
          -10.76267366235437
        ],
        [
          105.24078369140626,
          -10.76267366235437
        ]
      ]
    ]
  ],
  "type": "MultiPolygon"
}
Data Portal Western Australia Government

Data Source

This dataset was originally found on Western Australia Government "Christmas Island Laser DEM Shiny Colour Drape Images - 2011". Please visit the source to access the original metadata of the dataset:
https://catalogue.data.wa.gov.au/dataset/christmas-island-2011-shiny-drape-images