Product catalogue
Australian Geomagnetic Reference Field 2025 Revision (AGRF25)
<div>AGRF25 is a regional magnetic field model for Australia covering the interval 2020-2030. </div><div>The Australian Geomagnetic Reference Field (AGRF) is a set of numerical models of the geomagnetic field for Australia and near-neighbouring regions. It represents a combination of the Earth's main field originating from the core and the broad-scale crustal field. AGRF describes the geomagnetic field on a regional scale, intermediate between the global scale of the International Geomagnetic Reference Field (IGRF) and the local scale provided by detailed ground and aeromagnetic surveys.</div><div><br></div><div>Included with the dataset is evaluation software:</div><div>README.TXT: This text file of information</div><div><br></div><div>AGRF25S.FOR: Source code of a main program for generating AGRF25 values</div><div> at a sequence of single sites. The program may also be used to</div><div> generate values of the International Geomagnetic Reference Field, </div><div> revision 14 for epochs after 2025.0</div><div><br></div><div>AGRF25S.EXE: A Windows console application of program AGRF25S</div><div><br></div><div>AGRF25G.FOR: Source code of a main program for generating AGRF25 values</div><div> for a single field element on a latitude-longitude grid at </div><div> a constant altitude</div><div><br></div><div>AGRF25G.EXE: A Windows console application of program AGRF25G</div><div><br></div><div>AGRF25LB.FOR: Source code for subroutines called by the main programs.</div><div><br></div><div>COEF25: A data file of model coefficients and parameters.</div><div><br></div><div>GRID2GEO.FOR: Source code of a program to convert Universal Transverse</div><div> Mercator Easting and Northings to geodetic latitude and longitude</div><div><br></div><div>GRID2GEO.EXE: A Windows console application of GRID2GEO</div><div><br></div><div>GEO2GRID.FOR: Source code of a program to convert geodetic latitude and </div><div> longitude to UTM Easting and Northings</div><div><br></div><div>GEO2GRID.EXE: A Windows console application of GEO2GRID</div><div><br></div><div>SPHEROID.TXT: A text data file of geodetic spheroid parameters, </div><div> used by GRID2GEO and GEO2GRID</div>
Simple
Identification info
- Date (Creation)
- 2024-12-07T11:00:00
- Date (Publication)
- 2025-01-23T01:08:49
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/150056
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/150056
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Lewis, A.
Internal Contact Author Gard, M.
Internal Contact
- Purpose
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AGRF25 is developed for use within the interval 2020 to 2030 and supercedes AGRF20 over the period 2020-2025. AGRF25 is defined as the vector sum of IGRF-14 at 2025 and the "regional residual field (RRF25) for the main field and its predicted annual change. AGRF25 is based on a comprehensive set of vector magnetic field data from the region, including magnetic observatory and repeat station data, Geoscience Australia third-order ground vector survey, the US Navy high elevation airborne Project Magnet and data from the European Space Agencies' SWARM constellation, satellites A and B.This extensive regional data set used in the spherical cap harmonic modelling allow the AGRF25 to be considered the best available model for the Australian regional magnetic field for the interval 2020-2030.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Resource provider Place and Communities Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Bathgate, J.
Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2020-01-01 2029-12-31
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
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geomagnetism
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- Keywords
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magnetic field
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- Keywords
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2025
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- theme.ANZRC Fields of Research.rdf
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Magnetism and Palaeomagnetism
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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© Commonwealth of Australia (Geoscience Australia) 2025
Resource constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
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Australian Government Security Classification System
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Download dataset (zip) [26.4 MB]
Download dataset (zip) [26.4 MB]
- Distribution format
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zip
- File decompression technique
-
unzip
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Resource lineage
- Statement
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<div>This is an independent model for the period 2020-2030 and is revised on 5 yearly cycle.</div>
Reference System Information
- Reference system identifier
- EPSG/WGS 84 / geographic 2D (EPSG: 4326)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/045c4238-d74a-4d09-8dda-899cdd370f1f
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Bathgate, J.
Internal Contact
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/150056
- Date info (Creation)
- 2025-01-23T00:54:27
- Date info (Revision)
- 2025-01-23T00:54:27
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551