Zonal flow formation in the Earths core

Nature

Volumn 463, Issue 7282, 2010, Pages 793-796

  Miyagoshi, Takehiro ^a   Kageyama, Akira ^b   Sato, Tetsuya ^c  

^a JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

^b KOBE UNIVERSITY   (Japan)

^c UNIVERSITY OF HYOGO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CONVECTION; GEODYNAMO; GEOMAGNETIC FIELD; NUMERICAL MODEL; OUTER CORE; RADIAL DIFFUSION; VISCOSITY; ZONAL FLOW;

ARTICLE; ATMOSPHERE; COMPUTER SIMULATION; MAGNETIC FIELD; PRIORITY JOURNAL; THERMODYNAMICS; WATER FLOW; ZONAL FLOW;

EID: 76749111109     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature08754     Document Type: Article

References (26)

1. Maximenko, N. A., Bang, B. & Sasaki, H. Observational evidence of alternating zonal jets in the world ocean. Geophys. Res. Lett. 32, L12607 (2005).
2. Diamond, P. H., Itoh, K., Itoh, S. I. & Hahm, T. S. Zonal flows in plasma-a review. Plasma Phys. Contr. Fusion 47, R35-R161 (2005).
3. Roberts, P. H. & Glatzmaier, G. A. Geodynamo theory and simulations. Rev. Mod. Phys. 72, 1081-1123 (2000).
4. Jones, C. Convection-driven geodynamo models. Phil. Trans. R. Soc. Lond. A 358, 873-897 (2000).
5. Kono, M. & Roberts, P. H. Recent geodynamo simulations and observations of the geomagnetic field. Rev. Geophys. 40, 1013 (2002).
6. Christensen, U. R. & Aubert, J. Scaling properties of convection-driven dynamos in rotating spherical shells and applications to planetary magnetic fields. Geophys. J. Int. 166, 97-114 (2006).
7. Olson, P. & Christensen, U. R. Dipole moment scaling for convection-driven planetary dynamos. Earth Planet. Sci. Lett. 250, 561-571 (2006).
8. Aurnou, J. M. Planetary core dynamics and convective heat transfer scaling. Geophys. Astrophys. Fluid Dyn. 101, 327-345 (2007).
9. Busse, F. H. Convective flows in rapidly rotating spheres and their dynamo action. Phys. Fluids 14, 1301-1314 (2002).
10. Kageyama, A. & Sato, T. Generation mechanism of a dipole field by a magnetohydrodynamic dynamo. Phys. Rev. E 55, 4617-4626 (1997).
11. Kageyama, A., Miyagoshi, T. & Sato, T. Formation of current coils in geodynamo simulations. Nature 454, 1106-1109 (2008).
12. Habata, S., Yokokawa, M. & Kitawaki, S. The Earth Simulator system. NEC Res. Dev. 44, 21-26 (2003).
13. Christensen, U. R. A sheet-metal geodynamo. Nature 454, 1058-1059 (2008).
14. Sumita, I. & Olson, P. Laboratory experiments on high Rayleigh number thermal convection in rapidly rotating hemispherical shell. Phys. Earth Planet. Inter. 117, 153-170 (2000).
15. Aubert, J., Brito, D., Nataf, H.-C., Cardin, P. & Masson, J.-P. A systematic experimental study of rapidly rotating spherical convection in water and liquid gallium. Phys. Earth Planet. Inter. 128, 51-74 (2001).
16. Gillet, N., Brito, D., Jault, D. & Nataf, H. C. Experimental and numerical studies of convection in a rapidly rotating spherical shell. J. Fluid Mech. 580, 83-121 (2007). (Pubitemid 47307536)
17. Moffat, H. K. Magnetic Field Generation in Electrically Conducting Fluids 36-42 (Cambridge Univ. Press, 1978).
18. Christensen, U. R. Zonal flow driven by deep convection in the major planets. Geophys. Res. Lett. 28, 2553-2556 (2001).
19. Heimpel, M., Aurnou, J. & Wicht, J. Simulation of equatorial and high-latitude jets on Jupiter in a deep convection model. Nature 438, 193-196 (2005).
20. Sun, Z.-P., Schubert, G. & Glatzmaier, G. A. Banded surface flow maintained by convection in a model of the rapidly rotating giant planets. Science 260, 661-664 (1993).
21. Aurnou, J. & Heimpel, M. H. Zonal jets in rotating convection with mixed mechanical boundary conditions. Icarus 169, 492-498 (2004).
22. Kageyama, A. & Sato, T. "Yin-Yang grid": an overset grid in spherical geometry. Geochem. Geophys. Geosyst. 5, 1-15 (2004).
23. Kono, M. & Roberts, P. H. Definition of the Rayleigh number for geodynamo simulation. Phys. Earth Planet. Inter. 128, 13-24 (2001).
24. Gilman, P. & Glatzmaier, G. Compressible convection in a rotating spherical shell. I-Anelastic equations. Astrophys. J. 45 (suppl.), 335-349 (1981).
25. Chesshire, G. & Henshaw, W. D. Composite overlapping meshes for the solution of partial differential equations. J. Comput. Phys. 90, 1-64 (1990).
26. Kageyama, A., et al. in Proc. ACM/IEEE Supercomput. Conf. 2004 doi: 10.1109/ SC.2004.1; http://www.sc-conference.org/sc2004/schedule/pdfs/ pap234.pdf (2004).