From Australian Oceans Data Network
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Surface current data from ocean drifters in the Indian Ocean

Created 21/12/2025

Updated 21/12/2025

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The University of Western Australia (UWA) developed and deployed surface drifters at different offshore locations during the period 2019 to 2022. Each of these drifters provided data for a maximum of ~9 months. These undrogued drifters were 0.60 m in length and contained a GPS tracker that provided drifter positions at intervals varying between 4 and 7 minutes. The drifter position data were quality controlled for outlier removal and were interpolated linearly to an equal time interval of 5 minutes. This provided mean spatial resolution of 120m. The position information was used as a proxy to estimate the Lagrangian surface currents off Australia and surrounding open ocean regions. Each of the drifter data are stored in netcdf files containing the latitude and longitude position, time and zonal and meridional velocity components.

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Additional Info

Field Value
Title Surface current data from ocean drifters in the Indian Ocean
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/3d68f666-8151-41be-8c21-37180cb160ad
Contact Point
Australian Ocean Data Network
Charitha.Pattiaratchi@uwa.edu.au
Reference Period 13/01/2019 - 23/01/2023
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        35.0,
        -40.0
      ],
      [
        155.0,
        -40.0
      ],
      [
        155.0,
        -3.0
      ],
      [
        35.0,
        -3.0
      ],
      [
        35.0,
        -40.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Surface current data from ocean drifters in the Indian Ocean". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/surface-current-data-from-ocean-drifters-in-the-indian-ocean