The 2000 revision of the joint UK/US geomagnetic field models and an IGRF 2000 candidate model
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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.
KeywordsSecular Variation Repeat Station Geomagnetic Equator British Geological Survey Geomagnetic Field Model
- Quinn, J.M.,R.J.Coleman, D.L.Shiel, and J.Nigro, The Joint US/UK 1995 Epoch World Magnetic Model, Naval Oceanographic Office, Stennis Space Center, MS: Technical Report #314, 1995.Google Scholar