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Wave acquisition stereo-camera system measurements (WASS) from a voyage of the S.A. Agulhas II, July 2017

Created 23/06/2025

Updated 23/06/2025

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Between 07:00 and 08:00 UTC on the 4th July 2017, the South African icebreaker S.A. Agulhas II entered the Antarctic MIZ (62 South and 30 East) during an explosive polar cyclone. A system of two GigE monochrome industrial CMOS cameras with a 2/3 inch sensor was installed on the icebreaker. The cameras provide a field of view of the ocean surface around the port side of the ship. Images were recorded with resolution 2448x2048 pixels and a sampling rate 2 Hz during daylight on the 4th July 2017. The wave acquisition stereo-camera system (WASS; https://www.dais.unive.it/wass/) is used to reconstruct the water surface elevation. Reconstructed surface elevations are given as .nc files (6). The file name is “wass__20170704_hhmm.nc” where hh and mm denote the hour and minute in UTC of the start of each acquisition. X_grid and Y_grid are the grid in x and y direction, resolution 1000mm or 1m. Fps is the acquisition frequency, resolution 2Hz. Time is a dummy variable, time is reconstructed from start time and fps. Z is the surface elevation in space and time, in mm. Missing values are "Nan". Other variables are WASS control variables. Further details on the measurements and use of the data can be found at Alberello et al. “An extreme wave field in the winter Antarctic marginal ice zone during an explosive polar cyclone”.

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Additional Info

Field Value
Title Wave acquisition stereo-camera system measurements (WASS) from a voyage of the S.A. Agulhas II, July 2017
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/075fe203-f2d1-485a-ba3c-e66bb8337349
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 04/07/2017 - 04/07/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        29.0,
        -63.0
      ],
      [
        31.0,
        -63.0
      ],
      [
        31.0,
        -61.0
      ],
      [
        29.0,
        -61.0
      ],
      [
        29.0,
        -63.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Wave acquisition stereo-camera system measurements (WASS) from a voyage of the S.A. Agulhas II, July 2017". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/wave-acquisition-stereo-camera-system-measurements-wass-from-a-voyage-of-the-s-a-agulhas-i-2017