From Australian Oceans Data Network
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Gridded SAM and ENSO coefficients derived from satellite altimeter data over the Antarctic Ice Sheet, 2002-2020

Created 23/06/2025

Updated 17/10/2025

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The data result from an analysis of gridded satellite altimetry time series of ice surface elevation for the Antarctic Ice Sheet. Multiple linear regression is performed, including parameters associated with the cumulative sum of each of the Southern Annular Mode (SAM) and El Nino/Southern Oscillation (ENSO). The gridded data include the original data and the derived parameters and statistical values. Four grids are provided. Two grids are from separate regressions performed on data after applying one of two different spatial smoothing filters (10 km and 200 km Gaussian functions). Two further grids are from regressions after subtracting one of two firn densification models from the 10 km-smoothed altimetry data.

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Field Value
Title Gridded SAM and ENSO coefficients derived from satellite altimeter data over the Antarctic Ice Sheet, 2002-2020
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/00d1fd9d-a95c-40ab-b9da-61f43ee22f4c
Contact Point
Australian Ocean Data Network
Matt.King@utas.edu.au
Reference Period 01/01/2002 - 31/12/2020
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        0.0,
        -90.0
      ],
      [
        360.0,
        -90.0
      ],
      [
        360.0,
        -60.0
      ],
      [
        0.0,
        -60.0
      ],
      [
        0.0,
        -90.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Gridded SAM and ENSO coefficients derived from satellite altimeter data over the Antarctic Ice Sheet, 2002-2020". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/gridded-sam-and-enso-coefficients-derived-from-satellite-altimeter-data-over-the-anta-2002-2020