An observational constraint on the strength of the toroidal magnetic field at the CMB by time variation of submarine cable voltages

Geophysical Research Letters

Volumn 25, Issue 21, 1998, Pages 4023-4026

  Shimizu, Hisayoshi ^a   Koyama, Takao ^a   Utada, Hisashi ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; CONSTRAINT THEORY; EARTH (PLANET); ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; MAGNETIC FIELD EFFECTS; MATHEMATICAL MODELS; SUBMARINE CABLES;

TOROIDAL FIELD STRENGTH; TOROIDAL MAGNETIC FIELD;

GEOMAGNETISM;

MAGNETIC FIELD; MAGNETOTELLURIC METHOD; SUBMARINE PIPELINE;

EID: 0032216305     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/1998GL900064     Document Type: Article

References (14)

1. Achache, J., J.L. LeMouël and V. Courtillot, Long-period geomagnetic variations and mantle conductivity: an inversion using Bailey's method, Geophys. J. Roy. astr. Soc., 65, 579-601, 1981.
2. Banks, R.J. Geomagnetic variations and the electrical conductivity of the upper mantle. Geophys. J. Roy. astr. Soc., 17, 457-487, 1969.
3. Flosadóttir, Á.H., J.C. Larsen, and J.T. Smith, Motional induction in North Atlantic circulation models. J. Geophys. Research, 102, 10353-10372, 1997.
4. Glatzmaier, G.A. and P.H. Roberts, A three-dimensional convective dynamo solution with rotating and finitely conducting inner core and mantle. Phys. Earth and Planetary Int., 91, 63-75, 1995.
5. Kasahara, J., H. Utada, and H. Kinoshita, GeO-TOC project - Reuse of submarine cables for seismic and geoelectrical measurements. J. Phys. Earth, 43, 619-628, 1995.
6. Larsen, J.C., Transport and heat flux of the Florida Current at 27°N derived from cross-stream voltages and profiling data: Theory and observations. Phil. Trans. R. Soc. Lond., A338, 169-236, 1992.
7. Lanzerotti, L.J., L.V. Medford, C.G. Maclennan, D.J. Thomson, A. Meloni, and G.P. Gregori, Measurements of the Large-Scale Direct-Current Earth Potential and Possible Implications for the Geomagnetic Dynamo. Science, 229, 47-49, 1985.
8. Moffatt, K.H. Magnetic field generation in electrically conducting fluid, 343pp., Cambridge University Press, Cambridge, 1978.
9. Roberts, P.H. and F.J. Lowes, Earth currents of deep internal origin, J. Geophys. Res., 66, 1243-1254, 1961.
10. Runcorn, S.K., The Earth's core. Trans. Am. Geophys. Union, 35, 49-78, 1954.
11. Runcorn, S.K., Measurements of planetary electric currents, Nature, 202, 10-13, 1964.
12. Shankland, T.J., J. Peyronneau and J.-P. Poirier, Electrical conductivity of the Earth's lower mantle, Nature, 366, 453-455, 1993.
13. Vanyan, L.L., H. Utada, H. Shimizu, Y. Tanaka, N.A. Palshin, V. Stepanov, V. Kouznetsov, R.D. Medzhitov and A. Nozdrina, Studies on the lithosphere and the water transport by using the Japan Sea submarine cable (JASC): 1. Theoretical considerations, Earth, Planet and Space, 50, 35-42, 1998.
14. Yokoyama, Y. and T. Yukutake, Sixty year variation in a time series of the geomagnetic Gauss coefficients between 1910 and 1983, J. Geomag. Geoelectr., 43, 563-584, 1991.