From Australian Oceans Data Network
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MODIS Aqua Chla

Created 21/12/2025

Updated 21/12/2025

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This resource is daily means of Chla measured by the Aqua satelite which represents phytoplanton in the water for the periods 2018-2023 and 2022-2023.

The Aqua satellite platform carries a MODIS sensor that observes sunlight reflected from within the ocean surface layer at multiple wavelengths. These multi-spectral measurements are used to infer the concentration of chlorophyll-a (Chl-a), most typically due to phytoplankton, present in the water. There are multiple retrieval algorithms for estimating Chl-a. These data use the OCI method (Hu et al 2012, doi: 10.1029/2011jc007395) recommended by the NASA Ocean Biology Processing Group and implemented in the SeaDAS processing software l2gen. The OCI algorithm is described at https://oceancolor.gsfc.nasa.gov/atbd/chlor_a/ (and links therein).

Files and APIs

Additional Info

Field Value
Title MODIS Aqua Chla
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/92c79373-3e7c-404e-9350-5ed9543cba03
Contact Point
Australian Ocean Data Network
info@aodn.org.au
Reference Period 15/12/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        79.995,
        -60.005
      ],
      [
        180.0,
        -60.005
      ],
      [
        180.0,
        -10.0
      ],
      [
        79.995,
        -10.0
      ],
      [
        79.995,
        -60.005
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "MODIS Aqua Chla". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/modis-aqua-chla