Earth, Planets and Space

, Volume 52, Issue 12, pp 1149–1162 | Cite as

The 2000 revision of the joint UK/US geomagnetic field models and an IGRF 2000 candidate model

  • S. Macmillan
  • J. M. Quinn
Open Access


The method of derivation of the joint UK/US spherical harmonic geomagnetic main-field and secular-variation models is presented. Early versions of these models, with the main field truncated at degree 10, are the UK/US candidates for the IGRF 2000 model. The main-field model describes the Earth’s magnetic field at the 2000.0 epoch, while the secular-variation model predicts the evolution of this field between 2000.0 and 2005.0. A revised 1995.0 main-field model was also generated. Regional models for the continental US, Alaska and Hawaii were also produced as a by-product of the UK/US global modelling effort.


Secular Variation Repeat Station Geomagnetic Equator British Geological Survey Geomagnetic Field Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2000

Authors and Affiliations

  1. 1.British Geological SurveyMurchison HouseEdinburghScotland
  2. 2.United States Geological SurveyDenverUSA

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