International Geomagnetic Reference Model
- International Geomagnetic Reference Model
The International Geomagnetic Reference Model (IGRF) is mathematical representation of Earth's magnetic field developed by the National Oceanic and Atmospheric Administration (NOAA). It is used in applications to determine heading or attitude information.
See Also
* WMM: World Magnetic Model
External Links
* [http://www.ngdc.noaa.gov/geomag/models.shtml IGRF Model from the National Geophysical Data Center]
* [http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html IAGA Description of IGRF by the International Association of Geomagnetism and Aeronomy (IAGA)]
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