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Background

Brief description of geomagnetism and observation systems

About WMM

Learn more about model derivation, uncertainties and magnetic poles

Model & Software

Download model coefficients, software and documentation

Online Calculators

Calculate magnetic field values at or near the Earth surface

Maps

Browse imagery and contour maps for main field and secular change

Uses of WMM

Common applications of WMM

License

License and copyright information

The World Magnetic Model - License and copyright information

The WMM source code is in the public domain and not licensed or under copyright. The information and software may be used freely by the public. As required by 17 U.S.C. 403, third parties producing copyrighted works consisting predominantly of the material produced by U.S. government agencies must provide notice with such work(s) identifying the U.S. Government material incorporated and stating that such material is not subject to copyright protection.


Last Modified on: Sunday, 14-Dec-2014 15:17:44 MST
NOAA > NESDIS > NGDC
http://www.ngdc.noaa.gov/geomag/WMM/license.shtml
Maintained by: geomag.models@noaa.gov