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MODIS derived K490 datasets

Created 16/10/2025

Updated 16/10/2025

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The datasets measure the K490 parameter (Downwelling diffuse attenuation coefficient at 490 nm, a turbidity parameter) of Australian oceans. They are derived products from MODIS (aqua) images using NASA's SeaDAS image processing software. The extent of the datasets covers the entire Australian EEZ and surrounding waters (including the southern ocean). The spatial resolution of the datasets is 0.01 dd. The datasets contain 36 monthly k490 layers between 2009 and 2011. The unit of the datasets is 1/m.

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Additional Info

Field Value
Title MODIS derived K490 datasets
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/97fa8688-a209-4b2c-a9d3-234184575a6d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        100.0,
        -60.0
      ],
      [
        170.0,
        -60.0
      ],
      [
        170.0,
        -5.0
      ],
      [
        100.0,
        -5.0
      ],
      [
        100.0,
        -60.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "MODIS derived K490 datasets". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/modis-derived-k490-datasets1