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Location of the North Magnetic Pole in April 2007
Earth, Planets and Space volume 61, pages703–710(2009)
Observations have been made at five locations in the vicinity of the North Magnetic Pole (NMP). These were used in four different analyses—virtual geomagnetic pole, simple polynomial, spherical cap harmonic, best fitting grid—to derive positions of the NMP. The average position at 2007.3 was 83.95°N, 120.72°W, with a positional uncertainty of 40 km. This position is only 27 km from the pole position given by the CHAOS magnetic model. The NMP continues to move in a northwesterly direction but its drift speed has stabilized at just over 50 km per year. The number of direct observations is insufficient to determine if the NMP has started to decelerate.
Campbell, W. H., Comments on “Survey Tracks Current Position of South Magnetic Pole” and “Recent Acceleration of North Magnetic Pole Linked to Magnetic Jerks”, Eos Trans., AGU, 84, 41, 2003.
Fraser-Smith, A., Centered and eccentric geomagnetic dipoles and their poles, 1600–1985, Rev. Geophys., 25, 1–16, 1987.
Haines, G. V., Spherical cap harmonic analysis, J. Geophys. Res., 90, 2583–2591, 1985.
Lowes, F. J., The geomagnetic eccentric dipole: Facts and fallacies, Geophys. J. Int., 118, 671–679, 1994.
Macmillan, S. and S. Maus, International geomagnetic reference field - the tenth generation, Earth Planets Space, 57, 1135–1140, 2005.
Mandea, M. and M. Dormy, Asymmetric behaviour of the magnetic dip poles, Earth Planets Space, 55, 153–157, 2003.
Merrill, R. T., M. W. McElhinny, and P. L. McFadden, The magnetic field of the Earth, paleomagnetism, the core and the deep mantle, International Geophysics Series Volume 63, Academic Press, 531 pp., 1998.
Newitt, L. R. and C. E. Barton, The position of the North Magnetic Pole in 1994, J. Geomag. Geoelectr., 48, 221–232, 1996.
Newitt, L. R., C. E. Barton, and J. Bitterly, IAGA guide for magnetic repeat station surveys, International Association of Geomagnetism and Aeronomy special publications, 1996.
Newitt, L. R., M. Mandea, L. A. McKee, and J.-J. Orgeval, Recent acceleration of the North Magnetic Pole linked to magnetic jerks, Eos, Trans. AGU, 83, 381, 2002.
Olsen, N., H. Lühr, T. Sabaka, M. Mandea, M. Rother, L. Toffner-Clausen, and S. Choi. CHAOS—a model of the Earth’s magnetic field derived from CHAMP, Ørsted, and SAC-C magnetic satellite data, Geophys. J. Int., 166, 67–75, 2006.
Olsen, N. and M. Mandea, Will the magnetic north pole wind up in Sibeia, Eos, Trans. AGU, 88, 293, 2007.
Ross, J. C., On the position of the North Magnetic Pole, Phil. Trans. Roy. Soc. London, 124, 46–51, 1834.
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Newitt, L.R., Chulliat, A. & Orgeval, J.-. Location of the North Magnetic Pole in April 2007. Earth Planet Sp 61, 703–710 (2009) doi:10.1186/BF03353178
- North Magnetic Pole
- secular variation
- geomagnetic models
- geomagnetic jerks