A convection driven geodynamo reversal model

Physics of the Earth and Planetary Interiors

Volumn 111, Issue 1-2, 1999, Pages 3-20

  Sarson, G R ^a   Jones, C A ^a  

^a UNIVERSITY OF EXETER   (United Kingdom)

Author keywords

Convection driven geodynamo model; Polarity; Two mode approximation

Indexed keywords

GEODYNAMO; GEOMAGNETIC FIELD; MAGNETOHYDRODYNAMICS; MANTLE CONVECTION;

EID: 0033601879     PISSN: 00319201     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0031-9201(98)00142-3     Document Type: Conference Paper

References (26)

1. Aurnou J., Brito D., Olson P. Mechanics of inner core super-rotation. Geophys. Res. Lett. 23:1996;3401-3404.
2. Creager K.C. Inner core rotation rate from small-scale heterogeneity and time-varying travel times. Science. 278:1997;1284-1288.
3. Curry J.C., Herring J.R., Loncaric J., Orszag S.A. Order and disorder in two- and three-dimensional Bénard convection. J. Fluid Mech. 147:1984;1-38.
4. Dziewonski A.M., Su W. A local anomaly in the inner core. Eos, Transactions, AGU. 79:1998;218.
5. Glatzmaier G.A., Roberts P.H. A three-dimensional self-consistent computer simulation of a geomagnetic field reversal. Nature. 377:1995;203-209.
6. Glatzmaier G.A., Roberts P.H. A three-dimensional convective dynamo solution with rotating and finitely conducting inner core and mantle. Phys. Earth Planet. Int. 91:1995;63-75.
7. Glatzmaier G.A., Roberts P.H. An anelastic evolutionary geodynamo simulation driven by compositional and thermal convection. Physica D. 97:1996;81-94.
8. Glatzmaier G.A., Roberts P.H. Rotation and magnetism of Earth's inner core. Science. 274:1996;1887-1891.
9. Gubbins D., Sarson G. Geomagnetic field morphology and kinematic dynamos. Nature. 368:1994;51-55.
10. Hirsching H., Busse F.H. Stationary and chaotic dynamos in rotating spherical shells. Phys. Earth Planet. Int. 90:1995;243-254.
11. Hollerbach R. What can the observed rotation of the Earth's inner core reveal about the state of the outer core? Geophys. J. Int. 135:1998;564-572.
12. Jones C.A., Longbottom A.W., Hollerbach R. A self-consistent convection driven geodynamo model, using a mean field approximation. Phys. Earth Planet. Int. 92:1995;119-141.
13. Kuang W., Bloxham J. An earth-like numerical dynamo model. Nature. 389:1997;371-374.
14. Kuang, W., Bloxham, J., 1998. Numerical modelling of magnetohydrodynamic convection in a rapidly rotating spherical shell I: weak and strong field dynamo action, to appear in J. Comp. Phys.
15. Levy E.H. Kinematic reversal schemes for the geomagnetic dipole. Astrophys. J. 171:1972;635-642.
16. Levy E.H. On the state of the geomagnetic field and its reversals. Astrophys. J. 175:1972;573-581.
17. Parker E.N. The occasional reversal of the geomagnetic field. Astrophys. J. 158:1969;815-827.
18. Roberts P.H. Kinematic dynamo models. Philos. Trans. R. Soc. London A. 271:1972;663-697.
19. Sarson G.R., Gubbins D. Three-dimensional kinematic dynamos dominated by strong differential rotation. J. Fluid Mech. 306:1996;223-265.
20. Sarson G.R., Jones C.A., Longbottom A.W. Convection driven geodynamo models of varying Ekman number. Geophys. Astrophys. Fluid Dyn. 88:1998;225-259.
21. Song X., Richards P.G. Seismological evidence for differential rotation of the Earth's inner core. Nature. 382:1996;221-224.
22. Souriau A., Roudil P., Moynot B. Inner core differential rotation: facts and artefacts. Geophys. Res. Lett. 24:1997;2103-2106.
23. Su W.J., Dziewonski A.M., Jeanloz R. Planet within a planet - rotation of the inner-core of Earth. Science. 274:1996;1883-1887.
24. Taylor J.B. The magneto-hydrodynamics of a rotating fluid and the earth's dynamo problem. Proc. R. Soc. London A. 274:1963;274-283.
25. Wicht J., Busse F.H. Magnetohydrodynamic dynamos in rotating spherical shells. Geophys. Astrophys. Fluid Dyn. 86:1997;103-129.
26. Zhang K., Jones C.A. The effect of hyperviscosity on geodynamo models. Geophys. Res. Lett. 24:1997;2869-2872.