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Open Access

The working of the IGRF 2000 Task Force

Earth, Planets and Space201452:BF03352348

Received: 14 February 2000

Accepted: 24 May 2000

Published: 24 June 2014


At its meeting in July 1999, the IAGA Working Group for Analysis of the Global and Regional Geomagnetic Field and Secular Variation (WG V-8) felt unable to decide on a main-field model to use for IGRF 2000. It therefore set up a small Task Force with the remit to produce a model by the end of the year. This paper is the Chairman’s report of the working of that Task Force, outlining the various stages involved, and giving the background to the various decisions. He also makes some retrospective personal comments.


Candidate ModelSecular VariationEarth Planet SpaceBackus EffectSecular Variation Model