Abstract
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.
Similar content being viewed by others
References
Lowes, F. J. and J. E. Martin, Optimum use of satellite intensity and vector data in modelling the main geomagnetic field, Phys. Earth Planet. Int., 48, 183–192, 1987.
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.
Stern, D. P., R. A. Langel, and G. D. Mead, Backus effect observed by MAGSAT, Geophys. Res. Lett., 7, 941–944, 1980.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Macmillan, S., Quinn, J.M. The 2000 revision of the joint UK/US geomagnetic field models and an IGRF 2000 candidate model. Earth Planet Sp 52, 1149–1162 (2000). https://doi.org/10.1186/BF03352345
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03352345