From Australian Oceans Data Network
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A 3D map of englacial attenuation rate from radar reflections at Law Dome, East Antarctica

Created 23/06/2025

Updated 23/06/2025

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The East Antarctic Ice Sheet (EAIS) is the largest source of potential sea-level rise, containing some 19 m of sea-level equivalent. One of the well-investigated regions in East Antarctica is Law Dome, which is a small independent ice cap situated to the west of Totten Ice Shelf. The ice cap is slow-moving, has a low melt-rate at the surface and moderate wind speeds, making it a useful study site for our investigations. Radar data from Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project has good coverage over this area. A new method is proposed for the estimation of attenuation rate from radar data which is mathematically modeled as a constrained regularised l2 minimization problem. In the proposed method, only radar data is required and the englacial reflectors are automatically detected from the radar data itself. A final product of 3D attenuation rates and 3D samples count is provided for the research community in this data set.

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Additional Info

Field Value
Title A 3D map of englacial attenuation rate from radar reflections at Law Dome, East Antarctica
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/c04469a0-7525-481c-97f8-e56123b71b61
Contact Point
Australian Ocean Data Network
Syed.AbdulSalam@utas.edu.au
Reference Period 12/06/2017 - 01/01/2020
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        110.0782,
        -68.0873
      ],
      [
        118.4557,
        -68.0873
      ],
      [
        118.4557,
        -65.1999
      ],
      [
        110.0782,
        -65.1999
      ],
      [
        110.0782,
        -68.0873
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "A 3D map of englacial attenuation rate from radar reflections at Law Dome, East Antarctica". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/a-3d-map-of-englacial-attenuation-rate-from-radar-reflections-at-law-dome-east-antarctica