From Australian Oceans Data Network
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IMOS - Satellite Remote Sensing - MODIS - 01 day - Chlorophyll-a concentration (OCI model)

Created 23/06/2025

Updated 28/09/2025

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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). Production of contemporary MODIS data ceased at 2024/12/26. Users requiring similar Ocean Colour Radiometry data beyond 2024 should consider the VIIRS instruments on the SNPP and NOAA20+ series of satellites, also provided by IMOS.

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Additional Info

Field Value
Title IMOS - Satellite Remote Sensing - MODIS - 01 day - Chlorophyll-a concentration (OCI model)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/f621e2bf-0860-4449-9a2f-e509a20d52c0
Contact Point
Australian Ocean Data Network
Edward.King@csiro.au
Reference Period 01/07/2002 - 26/12/2024
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        80.0,
        -60.0
      ],
      [
        179.9,
        -60.0
      ],
      [
        179.9,
        10.0
      ],
      [
        80.0,
        10.0
      ],
      [
        80.0,
        -60.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "IMOS - Satellite Remote Sensing - MODIS - 01 day - Chlorophyll-a concentration (OCI model)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/imos-satellite-remote-sensing-modis-01-day-chlorophyll-a-concentration-oci-model