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Volumn 507, Issue 7493, 2014, Pages 484-487

Geomagnetic fluctuations reveal stable stratification at the top of the Earth's core

Author keywords

[No Author keywords available]

Indexed keywords

BUOYANCY; CORIOLIS FORCE; EARTH; GEOMAGNETIC FIELD; HEAT FLOW; STRATIFICATION; TORSION; ZONAL FLOW;

EID: 84897406389     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature13122     Document Type: Article
Times cited : (163)

References (32)
  • 1
    • 0001329072 scopus 로고
    • Geomagnetic line spectra-2 to 70 years
    • Currie, R. G. Geomagnetic line spectra-2 to 70 years. Astrophys. Space Sci. 21, 425-438 (1973).
    • (1973) Astrophys. Space Sci. , vol.21 , pp. 425-438
    • Currie, R.G.1
  • 3
    • 77957103279 scopus 로고    scopus 로고
    • Geomagnetic variation on decadal time scales: What can we learn fromempiricalmode decomposition?
    • Jackson, L. P. & Mound, J. E. Geomagnetic variation on decadal time scales: what can we learn fromempiricalmode decomposition? Geophys. Res. Lett. 37, L14307 (2010).
    • (2010) Geophys. Res. Lett. , vol.37
    • Jackson, L.P.1    Mound, J.E.2
  • 4
    • 78650618385 scopus 로고    scopus 로고
    • Short timescale core dynamics: Theory and observation
    • Finlay, C. C., Dumberry, M., Chulliat, A.&Pais, M. A. Short timescale core dynamics: theory and observation. Space Sci. Rev. 155, 177-218 (2010).
    • (2010) Space Sci. Rev. , vol.155 , pp. 177-218
    • Finlay, C.C.1    Dumberry, M.2    Chulliat, A.3    Pais, M.A.4
  • 5
    • 0002946890 scopus 로고
    • Torsionalmagnetohydrodynamic vibrations in the Earth's core and variations in day length
    • Braginsky, S. I. Torsionalmagnetohydrodynamic vibrations in the Earth's core and variations in day length. Geomagn. Aeron. 10, 1-10 (1970).
    • (1970) Geomagn. Aeron. , vol.10 , pp. 1-10
    • Braginsky, S.I.1
  • 6
    • 77952023179 scopus 로고    scopus 로고
    • Fast torsionalwaves and strongmagnetic field with the Earth's core
    • Gillet, N., Jault, D., Canet, E.&Fournier, A. Fast torsionalwaves and strongmagnetic field with the Earth's core. Nature 465, 74-77 (2010).
    • (2010) Nature , vol.465 , pp. 74-77
    • Gillet, N.1    Jault, D.2    Canet, E.3    Fournier, A.4
  • 7
    • 0027865862 scopus 로고
    • MAC-oscillations of the hidden ocean of the core
    • Braginsky, S. I. MAC-oscillations of the hidden ocean of the core. J. Geomag. Geoelectr. 45, 1517-1538 (1993).
    • (1993) J. Geomag. Geoelectr. , vol.45 , pp. 1517-1538
    • Braginsky, S.I.1
  • 8
    • 0031420953 scopus 로고    scopus 로고
    • Time dependency of tangentially geostrophic core surface motion
    • Jackson, A. Time dependency of tangentially geostrophic core surface motion. Phys. Earth Planet. Inter. 103, 293-311 (1997).
    • (1997) Phys. Earth Planet. Inter. , vol.103 , pp. 293-311
    • Jackson, A.1
  • 9
    • 0027044724 scopus 로고
    • Time-dependent mapping of the magnetic field at the core-mantle boundary
    • Bloxham, J. & Jackson, A. Time-dependent mapping of the magnetic field at the core-mantle boundary. J. Geophys. Res. 97, 19537-19563 (1992).
    • (1992) J. Geophys. Res. , vol.97 , pp. 19537-19563
    • Bloxham, J.1    Jackson, A.2
  • 10
    • 0026301230 scopus 로고
    • Sixty-year variation in a time series of the geomagnetic gauss coefficients between 1910 and 1983
    • Yokoyama, Y. & Yukutake, T. Sixty-year variation in a time series of the geomagnetic gauss coefficients between 1910 and 1983. J. Geomag. Geoelectr. 43, 563-584 (1991).
    • (1991) J. Geomag. Geoelectr. , vol.43 , pp. 563-584
    • Yokoyama, Y.1    Yukutake, T.2
  • 11
    • 84861070606 scopus 로고    scopus 로고
    • Thermal and electrical conductivity of iron at Earth's core conditions
    • Pozzo, M. Davies, C. Gubbins, D. & Alfe, D. Thermal and electrical conductivity of iron at Earth's core conditions. Nature 485, 355-358 (2012).
    • (2012) Nature , vol.485 , pp. 355-358
    • Davies, P.M.1    Gubbins D, C.2    Alfe, D.3
  • 12
    • 84872847856 scopus 로고    scopus 로고
    • Transport properties for liquid siliconoxygen-iron mixtures at Earth's core conditions
    • Pozzo, M., Davies, C., Gubbins, D. & Alfe, D. Transport properties for liquid siliconoxygen-iron mixtures at Earth's core conditions. Phys. Rev. B 87, 014110 (2013).
    • (2013) Phys. Rev. B , vol.87 , pp. 014110
    • Pozzo, M.1    Davies, C.2    Gubbins, D.3    Alfe, D.4
  • 13
    • 77954660172 scopus 로고    scopus 로고
    • Stratification at the top of the core due to chemical interaction with the mantle
    • Buffett, B. A. & Seagle, C. T. Stratification at the top of the core due to chemical interaction with the mantle. J. Geophys. Res. 115, B04407 (2010).
    • (2010) J. Geophys. Res. , vol.115
    • Buffett, B.A.1    Seagle, C.T.2
  • 14
    • 84871791889 scopus 로고    scopus 로고
    • The stratified layer at the core-mantle boundary caused by barodiffusion of oxygen, sulphur and silicon
    • Gubbins, D.& Davies, C. J. The stratified layer at the core-mantle boundary caused by barodiffusion of oxygen, sulphur and silicon. Phys. Earth Planet. Inter. 215, 21-28 (2013).
    • (2013) Phys. Earth Planet. Inter. , vol.215 , pp. 21-28
    • Gubbins, D.1    Davies, C.J.2
  • 15
    • 0030858137 scopus 로고    scopus 로고
    • Torsional oscillations and the magnetic field within the Earth's core
    • Zatman, S. & Bloxham, J. Torsional oscillations and the magnetic field within the Earth's core. Nature 388, 760-763 (1997).
    • (1997) Nature , vol.388 , pp. 760-763
    • Zatman, S.1    Bloxham, J.2
  • 16
    • 66549089698 scopus 로고    scopus 로고
    • Inversion of torsional oscillations for the structure and dynamics of Earth's core
    • Buffett, B. A., Mound, J. E. & Jackson, A. Inversion of torsional oscillations for the structure and dynamics of Earth's core. Geophys. J. Int. 177, 878-890 (2009).
    • (2009) Geophys. J. Int. , vol.177 , pp. 878-890
    • Buffett, B.A.1    Mound, J.E.2    Jackson, A.3
  • 17
    • 80054064097 scopus 로고    scopus 로고
    • Geodynamo models: Tools for understanding properties of Earth's magnetic field
    • Christensen, U. R. Geodynamo models: tools for understanding properties of Earth's magnetic field. Phys. Earth Planet. Inter. 187, 157-169 (2011).
    • (2011) Phys. Earth Planet. Inter. , vol.187 , pp. 157-169
    • Christensen, U.R.1
  • 18
    • 0011061913 scopus 로고    scopus 로고
    • Modeling of nutation and precession: Effects of electromagnetic coupling
    • Buffett, B. A., Matthews, P. M. & Herring, T. A. Modeling of nutation and precession: effects of electromagnetic coupling. J. Geophys. Res. 107, B42070 (2002).
    • (2002) J. Geophys. Res. , vol.107
    • Buffett, B.A.1    Matthews, P.M.2    Herring, T.A.3
  • 19
    • 77955746665 scopus 로고    scopus 로고
    • Constraints on the coupling at the core-mantle and inner-core boundaries inferred from nutation observations
    • Koot, L. et al. Constraints on the coupling at the core-mantle and inner-core boundaries inferred from nutation observations. Geophys. J. Int. 182, 1279-1294 (2010).
    • (2010) Geophys. J. Int. , vol.182 , pp. 1279-1294
    • Koot, L.1
  • 20
    • 33745598382 scopus 로고    scopus 로고
    • Core surface flow modeling from high-resolution secular variation
    • Holme, R. & Olsen, N. Core surface flow modeling from high-resolution secular variation. Geophys. J. Int. 166, 518-528 (2006).
    • (2006) Geophys. J. Int. , vol.166 , pp. 518-528
    • Holme, R.1    Olsen, N.2
  • 21
    • 0347372908 scopus 로고    scopus 로고
    • Four centuries of geomagnetic secular variation fromhistorical records
    • Jackson, A., Jonkers, A. R. T. & Walker, M. R. Four centuries of geomagnetic secular variation fromhistorical records. Phil. Trans. R. Soc. Lond. A 358, 957-990 (2000).
    • (2000) Phil. Trans. R. Soc. Lond. A , vol.358 , pp. 957-990
    • Jackson, A.1    Jonkers, A.R.T.2    Walker, M.R.3
  • 22
    • 84860842107 scopus 로고    scopus 로고
    • An extended version of theC3FMgeomagnetic fieldmodel: Application of a continuous frozen-flux constraint
    • Wardinski, I.&Lesur, V. An extended version of theC3FMgeomagnetic fieldmodel: application of a continuous frozen-flux constraint.Geophys. J. Int.189, 1409-1429 (2012).
    • (2012) Geophys. J. Int. , vol.189 , pp. 1409-1429
    • Wardinski, I.1    Lesur, V.2
  • 25
    • 0031859593 scopus 로고    scopus 로고
    • Stratification of the outer core at the core-mantle boundary
    • Lister, J. R. & Buffett, B. A. Stratification of the outer core at the core-mantle boundary. Phys. Earth Planet. Inter. 105, 5-19 (1998).
    • (1998) Phys. Earth Planet. Inter. , vol.105 , pp. 5-19
    • Lister, J.R.1    Buffett, B.A.2
  • 26
    • 0343403187 scopus 로고    scopus 로고
    • Numerical modeling of magnetohydrodynamic conv6ction in a rapidly rotating spherical shell: Weak and strong field dynamo action
    • Kuang, W. & Bloxham, J. Numerical modeling of magnetohydrodynamic conv6ction in a rapidly rotating spherical shell: Weak and strong field dynamo action. J. Comput. Phys. 153, 51-81 (1999).
    • (1999) J. Comput. Phys. , vol.153 , pp. 51-81
    • Kuang, W.1    Bloxham, J.2
  • 27
    • 0000322706 scopus 로고
    • Implicitapplicationofpolynomial filters in a k-stepArnoldimethod
    • Sorensen, D. C.Implicitapplicationofpolynomial filters in a k-stepArnoldimethod. SIAM J. Matrix Anal. Appl. 13, 357-385 (1992).
    • (1992) SIAM J. Matrix Anal. Appl. , vol.13 , pp. 357-385
    • Sorensen, D.C.1
  • 28
    • 26444475361 scopus 로고    scopus 로고
    • On core surface flows inferred from satellite magnetic data
    • Eymin, C. & Hulot, G. On core surface flows inferred from satellite magnetic data. Phys. Earth Planet. Inter. 152, 200-220 (2005).
    • (2005) Phys. Earth Planet. Inter. , vol.152 , pp. 200-220
    • Eymin, C.1    Hulot, G.2
  • 29
    • 78449248967 scopus 로고    scopus 로고
    • International geomagnetic reference field: The eleventh generation
    • Finlay, C. et al. International geomagnetic reference field: the eleventh generation. Geophys. J. Int. 183, 1216-1230 (2010).
    • (2010) Geophys. J. Int. , vol.183 , pp. 1216-1230
    • Finlay, C.1
  • 31
    • 77954656200 scopus 로고    scopus 로고
    • Chemical stratification at the top of Earth's core: Constraints from observations of nutations
    • Buffett, B. A. Chemical stratification at the top of Earth's core: constraints from observations of nutations. Earth Planet. Sci. Lett. 296, 367-372 (2010).
    • (2010) Earth Planet. Sci. Lett. , vol.296 , pp. 367-372
    • Buffett, B.A.1
  • 32
    • 39049114014 scopus 로고    scopus 로고
    • Axial invariance of rapidly varying diffusionless motion in the Earth's core interior
    • Jault, D. Axial invariance of rapidly varying diffusionless motion in the Earth's core interior. Phys. Earth Planet. Inter. 166, 67-76 (2008).
    • (2008) Phys. Earth Planet. Inter. , vol.166 , pp. 67-76
    • Jault, D.1


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