From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Australian Geomagnetic Reference Field (2000 revision AGRF00) (National Geoscience Dataset)

Created 16/10/2025

Updated 16/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

The AGRF is a numerical model of the earths magnetic field over the Australian region. The model can be used to generate single point or gridded values of any element of the magnetic field (e.g., magnetic declination, inclination, or total intensity) together with annual change estimates. The AGRF is valid only for the Australian region, where it is considered to be more accurate than global models such as the International Geomagnetic Reference Field. The version here, AGRF00, is valid for years between 1995 and 2005. AGRF is also provided online. The user must input the latitude, longitude, and elevation of a site together with the year. http:/www.agso.gov.au/geophysics/geomag/rf/agrfform.html FURTHER INFORMATION:- The AGRF represents a combination of the earths main (core) field and the long wavelength crustal field. Local crustal anomolies and disturbances which are external in origin (e.g. magnetic storms) are not represented. The model is based on all available ground, airborne, and satellite vector survey data. Magnetic observatory and repeat station survey data from the region are used to update these main/crustal field data sets and to provide the estimates of annual change. The region modelled is a spherical cap of radius 28 deg centred at 24 degS, 135 degE. Model values outside a radius of 24 deg are considered to be unreliable because of edge effects.

Files and APIs

Tags

Additional Info

Field Value
Title Australian Geomagnetic Reference Field (2000 revision AGRF00) (National Geoscience Dataset)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/388b9e34-2000-48f2-9ef0-2146aa0305bf
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        108.0,
        -48.0
      ],
      [
        161.0,
        -48.0
      ],
      [
        161.0,
        0.0
      ],
      [
        108.0,
        0.0
      ],
      [
        108.0,
        -48.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Australian Geomagnetic Reference Field (2000 revision AGRF00) (National Geoscience Dataset)". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/australian-geomagnetic-reference-field-2000-revision-agrf00-national-geoscience-dataset