From Australian Oceans Data Network
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SA Agulhas II Winter 2017 Cruise: ice edge drifters

Created 24/06/2025

Updated 24/06/2025

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Three Trident Sensors Helix beacons (Unit 1,2,3) were deployed about on ice floes close to latitude 62.8 S and longitude 29.8 E on 4th July 2017 to measure sea ice drift. The region where the instruments were deployed (Antarctic Marginal Ice Zone) consisted of first-year ice on average ~50 cm thick. The instruments were deployed by hand by three people, lowered by crane from the ship to the ice on a basket cradle on floes ~5 m in diameter. The temporal resolution is 4 hours. The survival of the sensors depended on staying fixed to the floe and the battery life. Unit 1 provided GPS location from the 5th July 2017 to 1st December 2017, started at 62.84 S and 30.20 E and finished at 61.55 S and 55.99 E. Unit 2 provided GPS location from the 5th July 2017 to 3rd August 2017, started at 62.83 S and 30.20 E and finished at 62.36 S and 31.57 E. Unit 3 provided GPS location from the 5th July 2017 to 15st August December 2017, started at 62.59 S and 29.98 E and finished at 61.16 S and 35.60 E. In the .xlsx submission sheet 1 refers to Unit 1, sheet 2 to Unit 2, and sheet 3 to Unit 3. First column is the Unit Identifier (1,2,3) Second column is the date in the format day/month/year Third column is the UTC time in the format hh:mm:ss Fourth column is the latitude in degrees and decimals, the negative refers to South Fifth column is the longitude in degrees and decimals, the positive refers to East

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Additional Info

Field Value
Title SA Agulhas II Winter 2017 Cruise: ice edge drifters
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/9121c6fc-f122-4e2d-b4b5-c90a1211ee70
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 05/07/2017 - 01/12/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        29.0,
        -63.0
      ],
      [
        56.0,
        -63.0
      ],
      [
        56.0,
        -60.0
      ],
      [
        29.0,
        -60.0
      ],
      [
        29.0,
        -63.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "SA Agulhas II Winter 2017 Cruise: ice edge drifters". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/sa-agulhas-ii-winter-2017-cruise-ice-edge-drifters