Abstract
A three-dimensional, self-consistent numerical model of the geodynamo is described, that maintains a magnetic field for over 40,000 years. The model, which incorporates a finitely conducting inner core, undergoes several polarity excursions and then, near the end of the simulation, a successful reversal of the dipole moment. This simulated magnetic field reversal shares some features with real reversals of the geomagnetic field, and may provide insight into the geomagnetic reversal mechanism.
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References
Elsasser, W. M. Phys. Rev. 72, 821–833 (1947).
Parker, E. N. Astrophys. J. 122, 293–314 (1955).
Merrill, R. T. & McElhinny, M. W. The Earth's Magnetic Field (Academic, London, 1983).
Cowling, T. G. Mon. Not. R. astr. Soc. 94, 34–48 (1934).
Roberts, P. H. & Soward, A. M. A. Rev. Fluid Mech. 24, 459–512 (1992).
Braginsky, S. I. & Roberts, P. H. Geophys. astrophys. Fluid Dyn. 38, 327–349 (1987).
Olson, P. Geophys. Res. Lett. 16, 613–616 (1989).
Barenghi, C. F. & Jones, C. A. Geophys. astrophys. Fluid Dyn. 60, 211–243 (1991).
Hollerbach, R. & Jones, C. A. Nature 365, 541–543 (1993).
Glatzmaier, G. A. & Roberts, P. H. J. Geomag. Geoelectr. 45, 1605–1616 (1993).
Nakajima, T. & Roberts, P. H. Proc. R. Soc. Lond. A 448, 1–28 (1995).
Pekeris, C. L., Accad,, Y. & Shkoller, B. Phil. Trans. R. Soc. Lond. A 275, 425–461 (1973).
Kumar, S. & Roberts, P. H. Proc. R. Soc. Lond. A 314, 235–258 (1975).
Gubbins, D. & Sarson, G. Nature 368, 51–55 (1994).
Zhang, K. K. & Busse, F. H. Phys. Earth planet. Inter. 59, 208–222 (1990).
Arter, W. Geophys. astrophys. Fluid Dyn. 31, 311–344 (1985).
Matthews, P. C. in Solar and Planetary Dynamos (eds Proctor, M. R. E., Matthews, P. C. & Rucklidge, A. M.) 211–218 (Cambridge Univ. Press, 1993).
Fearn, D. R., Proctor, M. R. E. & Sellar, C. C. Geophys. astrophys. Fluid Dyn. 77, 111–132 (1994).
Olson, P. & Glatzmaier, G. A. Phys. Earth planet. Inter. (in the press).
Meneguzzi, M. & Pouquet, A. J. Fluid Mech. 205, 297–318 (1989).
Brandenburg, A., Nordlund, A., Pulkkinen, P., Stein, R. F. & Tuominen, I. Astr. Astrophys. 232, 277–291 (1990).
Nordlund, A. et al. Astrophys. J. 392, 647–652 (1992).
St Pierre, M. G. in Solar and Planetary Dynamos (eds Proctor, M. R. E., Matthews, P. C. & Rucklidge, A. M.) 295–302 (Cambridge Univ. Press, 1993).
Gilman, P. A. & Miller, J. Astrophys. J. Suppl. 46, 211–238 (1981).
Gilman, P. A. Astrophys. J. Suppl. 53, 243–268 (1983).
Glatzmaier, G. A. J. comput Phys. 55, 461–484 (1984).
Glatzmaier, G. A. Astrophys. J. 291, 300–307 (1985).
Glatzmaier, G. A. Geophys. astrophys. Fluid Dyn. 31, 137–150 (1985).
Kageyama, A. et al. Phys. Plasmas 2, 1421–1431 (1995).
Glatzmaier, G. A. & Roberts, P. H. Phys. Earth planet. Inter. 91, 63–76 (1995).
Rikitake, T. Proc. Camb. phil. Soc. 54, 89–105 (1966).
Bloxham, J. & Gubbins, D. Nature 317, 777–781 (1985).
Cain, J. C., Wang, Z., Schmitz, D. R. & Meyer, J. Geophys. J. 97, 443–447 (1989).
Langel, R. in Geomagnetism (ed. Jacobs, J. A.) Vol. 1, 249–512 (Academic, San Diego, 1987).
Coe, R. S., Prevot, M. & Camps, P. Nature 374, 687–692 (1995).
Hoffman, K. A. Nature 359, 789–794 (1992).
Opdyke, N. D., Kent, D. V. & Lowrie, W. Earth planet. Sci. Lett. 20, 315–324 (1973).
Kristjansson, L. Geophys. J. R. astr. Soc. 80, 57–71 (1985).
Tric, E. et al. Phys. Earth planet. Inter. 65, 319–336 (1991).
Clement, B. M. Earth planet. Sci. Lett. 104, 48–58 (1991).
Laj, C., Mazaud, A., Weeks, R., Fuller, M. & Herrero-Bervera, E. Nature 351, 447 (1991).
Ratcliff, C. D., Geissman, J. W., Perry, F. V., Crowe, B. M. & Zeitler, P. K. Science 266, 412–416 (1994).
Langeres, C. G., van Hoof, A. A. M. & Rochette, P. Nature 358, 226–230 (1992).
Valet, J.-P., Tuchloka, P., Courtillot, V. & Meynadier, L. Nature 356, 400–407 (1992).
McFadden, P. L., Barton, C. E. & Merrill, R. T. Nature 361, 342–344 (1993).
Prevot, M. & Camps, P. Nature 366, 53–57 (1993).
McFadden, P. L. & Merrill, R. T. J. geophys. Res. 100, 307–316 (1995).
Runcorn, S. K. Nature 356, 654–656 (1992).
Clement, B. M. & Stixrude, L. Earth planet. Sci. Lett. 130, 75–85 (1995).
Valet, J.-P. & Meynadier, L. Nature 366, 234–238 (1993).
Clement, B. M. & Kent, D. V. Geophys. Res. Lett. 18, 81–84 (1991).
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Glatzmaiers, G., Roberts, P. A three-dimensional self-consistent computer simulation of a geomagnetic field reversal. Nature 377, 203–209 (1995). https://doi.org/10.1038/377203a0
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DOI: https://doi.org/10.1038/377203a0
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