Dynamo action and its temporal variation inside the tangent cylinder in MHD dynamo simulations

Physics of the Earth and Planetary Interiors

Volumn 140, Issue 1-3, 2003, Pages 53-71

  Takahashi, F ^a   Matsushima, M ^a   Honkura, Y ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

Convection; Geodynamo; Tangent cylinder

Indexed keywords

CONVECTION; ELECTRICAL CONDUCTIVITY; GEODYNAMO; INNER CORE; MAGNETIC FIELD; ROTATION; SIMULATION; TEMPORAL VARIATION;

EID: 0345581329     PISSN: 00319201     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pepi.2003.07.009     Document Type: Article

References (27)

1. Christensen U.R.Olson P.Glatzmaier G.A.Numerical modeling of the geodynamo: A systematic parameter study Geophys. J. Int. 138 1999 393-409
2. Christensen U.R.Aubert J.Cardin P.Dormy E.Gibbons S.Glatzmaier G.A.Grote E.Honkura Y.Jones C.Kono M.Matsushima M.Sakuraba A.Takahashi F.Tilgner A.Wicht J.Zhang K.A numerical dynamo benchmark Phys. Earth Planet. Inter. 128 2001 25-34
3. Glatzmaier G.A.Roberts P.H.A three-dimensional convective dynamo solution with rotating and finitely conducting inner core and mantle Phys. Earth Planet. Inter. 91 1995a 63-75
4. Glatzmaier G.A.Roberts P.H.A three-dimensional self-consistent computer simulation of a geomagnetic field reversal Nature 377 1995b 203-209
5. Glatzmaier G.A.Roberts P.H.An anelastic evolutionary geodynamo simulation driven by compositional and thermal convection Physica D 97 1996 81-94
6. Glatzmaier G.A.Coe R.S.Hongre L.Roberts P.H.The role of the Earth's mantle in controlling the frequency of geomagnetic reversals Nature 401 1999 885-890
7. Grote E.Busse F.H.Dynamics of convection and dynamos in rotating spherical fluid shells Fluid Dyn. Res. 28 2001 349-368
8. Grote E.Busse F.H.Tilgner A.Regular and chaotic spherical dynamos Phys. Earth Planet. Inter. 117 2000a 259-272
9. Grote E.Busse F.H.Tilgner A.Effect of hyperdiffusivities on dynamo simulations Geophys. Res. Lett. 27 2000b 2001-2004
10. Ishihara N.Kida S.Dynamo mechanism in a rotating spherical shell: Competition between magnetic field and convection vortices J. Fluid Mech. 465 2002 1-32
11. Kageyama, A., Sato, T., Complexity Simulation Group, 1995. Computer simulation of a magnetohydrodynamic dynamo. II. Phys. Plasmas 2, 1421-1431.
12. Kageyama A.Sato T.Generation mechanism of a dipole field by a magnetohydrodynamic dynamo Phys. Rev. E 55 1997 4617-4626
13. Katayama J.S.Matsushima M.Honkura Y.Some characteristics of magnetic field behavior in a model of MHD dynamo thermally driven in a rotating spherical shell Phys. Earth Planet Inter. 111 1999 141-159
14. Kuang W.Force balances and convective state in the Earth's core Phys. Earth Planet. Inter. 116 1999 65-79
15. Kuang W.Bloxham J.An Earth-like numerical dynamo model Nature 389 1997 371-374
16. Kuang W.Bloxham J.Numerical modeling of magnetohydrodynamic convection in a rapidly rotating spherical shell: weak and strong field dynamo action J. Comp. Phys. 153 1999 51-81
17. Kutzner C.Christensen U.R.Effects of driving mechanisms in geodynamo models Gephys. Res. Lett. 28 2000 29-32
18. Kutzner C.Christensen U.R.From stable dipolar towards reversing numerical dynamos Phys. Earth Planet. Inter. 131 2002 29-45
19. Olson P.Christensen U.R.Glatzmaier G.A.Numerical modeling of the geodynamo: Mechanisms of field generation in equilibration J. Geophys. Res. 104 1999 10383-10404
20. Roberts P.H.Glatzmaier G.A.Geodynamo theory and simulations Rev. Mod. Phys. 72 2000 1081-1123
21. Sakuraba A.Kono M.Effect of the inner core on the numerical solution of the magnetohydrodynamic dynamo Phys. Earth Planet. Inter. 111 1999 105-121
22. Sarson G.R.Jones C.A.A convection driven geodynamo reversal model Phys. Earth Planet. Inter. 111 1999 3-20
23. Takahashi F.Katayama J.S.Matsushima M.Honkura Y.Effects of boundary layers on magnetic field behavior in an MHD dynamo model Phys. Earth Planet Inter. 128 2001 149-161
24. Tilgner A.Busse F.H.Finite amplitude convection in rotating spherical shells J. Fluid Mech. 332 1997 359-376
25. Zhang K.Jones C.A.The effect of hyperdiffusivity on geodynamo models Geophys. Res. Lett. 24 1997 2869-2872
26. Zhang K.Schubert G.Magnetohydrodynamics in rapidly rotating spherical systems Ann. Rev. Fluid Mech. 32 2000 409-443
27. Zhang K.Jones C.A.Sarson G.R.The dynamical effects of hyperviscosity on numerical geodynamo models Studia. Geophys. Geod. 42 1998 247-253