메뉴 건너뛰기




Volumn 190, Issue 1, 2012, Pages 243-254

Timescales of geomagnetic secular acceleration in satellite field models and geodynamo models

Author keywords

Dynamo: theories and simulations; Rapid time variations; Satellite magnetics

Indexed keywords

ABSOLUTE VALUES; B SPLINES; CHARACTERISTIC TIME; CONTROL PARAMETERS; CORE FLOW; DECADAL TIMESCALE; DECREASING FUNCTIONS; DYNAMIC PROCESS; DYNAMO MODELS; DYNAMO SIMULATION; FIELD MODEL; FIELD VARIABILITY; FLOW ACCELERATION; GEODYNAMO MODELS; GEOMAGNETIC FIELDS; GEOMAGNETIC SECULAR VARIATION; HARMONIC DEGREE; INDUCTION EQUATIONS; LENGTH SCALE; MAGNETIC FIELD STRENGTHS; MAGNETIC REYNOLDS NUMBER; MAGNETIC VARIATION; NEAR SURFACE FLOW; RMS VELOCITIES; ROBUST ESTIMATE; SATELLITE DATA; SATELLITE FIELDS; SCALING ANALYSIS; SECULAR VARIATION; SPECTRAL SHAPES; SPHERICAL HARMONICS; TIME DEPENDENCE; TIME DERIVATIVE; TIME VARIATIONS; TIME-SCALES;

EID: 84862206054     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2012.05508.x     Document Type: Article
Times cited : (49)

References (41)
  • 1
    • 0021581406 scopus 로고
    • Harmonics required in main field and secular variation models
    • Alldredge, L.R., 1984. Harmonics required in main field and secular variation models, J. Geomagn. Geoelectr., 36, 63-72.
    • (1984) J. Geomagn. Geoelectr. , vol.36 , pp. 63-72
    • Alldredge, L.R.1
  • 2
    • 33846002772 scopus 로고    scopus 로고
    • Tests of core flow imaging methods with numerical dynamos
    • Amit, H., Olson, P. & Christensen, U., 2007. Tests of core flow imaging methods with numerical dynamos, Geophys. J. Int., 168, 27-39.
    • (2007) Geophys. J. Int. , vol.168 , pp. 27-39
    • Amit, H.1    Olson, P.2    Christensen, U.3
  • 3
    • 0027068896 scopus 로고
    • The steady part of the secular variation of the Earth's magnetic field
    • Bloxham, J., 1992. The steady part of the secular variation of the Earth's magnetic field, J. geophys. Res., 97, 19565-19579.
    • (1992) J. geophys. Res. , vol.97 , pp. 19565-19579
    • Bloxham, J.1
  • 4
    • 78650410577 scopus 로고    scopus 로고
    • Tidal dissipation and the strength of the Earth's internal magnetic field
    • Buffett, B.A., 2010. Tidal dissipation and the strength of the Earth's internal magnetic field, Nature, 468, 952-954.
    • (2010) Nature , vol.468 , pp. 952-954
    • Buffett, B.A.1
  • 5
    • 35248879624 scopus 로고    scopus 로고
    • Magnetic and viscous coupling at the core-mantle boundary: inferences from observations of the Earth's nutation
    • Buffett, B.A. & Christensen, U.R., 2007. Magnetic and viscous coupling at the core-mantle boundary: inferences from observations of the Earth's nutation, Geophys. J. Int., 171, 145-152.
    • (2007) Geophys. J. Int. , vol.171 , pp. 145-152
    • Buffett, B.A.1    Christensen, U.R.2
  • 6
    • 2442672991 scopus 로고    scopus 로고
    • Power requirement of the geodynamo from ohmic losses in numerical and laboratory dynamos
    • Christensen, U.R. & Tilgner, A., 2004. Power requirement of the geodynamo from ohmic losses in numerical and laboratory dynamos, Nature, 429, 169-171.
    • (2004) Nature , vol.429 , pp. 169-171
    • Christensen, U.R.1    Tilgner, A.2
  • 7
    • 58149328666 scopus 로고    scopus 로고
    • Energy flux determines magnetic field strength of planets and stars
    • Christensen, U.R., Holzwarth, V. & Reiners, A., 2009. Energy flux determines magnetic field strength of planets and stars, Nature, 457, 167-169.
    • (2009) Nature , vol.457 , pp. 167-169
    • Christensen, U.R.1    Holzwarth, V.2    Reiners, A.3
  • 9
    • 26444475361 scopus 로고    scopus 로고
    • On core surface flows inferred from satellite magnetic data
    • Eymin, C. & Hulot, G., 2005. On core surface flows inferred from satellite magnetic data, Phys. Earth planet. Inter., 152, 200-220.
    • (2005) Phys. Earth planet. Inter. , vol.152 , pp. 200-220
    • Eymin, C.1    Hulot, G.2
  • 10
    • 79959269328 scopus 로고    scopus 로고
    • On flow magnitude and field-flow alignment at Earth's core surface
    • Finlay, C.C. & Amit, H., 2011. On flow magnitude and field-flow alignment at Earth's core surface, Geophys. J. Int., 186, 175-192.
    • (2011) Geophys. J. Int. , vol.186 , pp. 175-192
    • Finlay, C.C.1    Amit, H.2
  • 11
    • 77952023179 scopus 로고    scopus 로고
    • Fast torsional waves and strong magnetic fields within the Earth's core
    • Gillet, N., Jault, D., Canet, E. & Fournier, A., 2010. Fast torsional waves and strong magnetic fields within the Earth's core, Nature, 465, 74-77.
    • (2010) Nature , vol.465 , pp. 74-77
    • Gillet, N.1    Jault, D.2    Canet, E.3    Fournier, A.4
  • 12
    • 84882826006 scopus 로고    scopus 로고
    • Large-scale flow in the core
    • ed. Schubert, G., Elsevier, Amsterdam
    • Holme, R., 2007. Large-scale flow in the core, in Treatise on Geophysics: Core Dynamics, Vol. 8, pp. 107-130, ed. Schubert, G., Elsevier, Amsterdam
    • (2007) Treatise on Geophysics: Core Dynamics , vol.8 , pp. 107-130
    • Holme, R.1
  • 13
    • 33745598382 scopus 로고    scopus 로고
    • Core surface modelling from high-resolution secular variation
    • Holme, R. & Olsen, N., 2006. Core surface modelling from high-resolution secular variation, Geophys. J. Int., 166, 518-528.
    • (2006) Geophys. J. Int. , vol.166 , pp. 518-528
    • Holme, R.1    Olsen, N.2
  • 14
    • 79960354258 scopus 로고    scopus 로고
    • Mapping geomagnetic secular variation at the core-mantle boundary
    • Holme, R., Olsen, N. & Bairstow, F.L., 2011. Mapping geomagnetic secular variation at the core-mantle boundary, Geophys. J. Int., 186, 521-528.
    • (2011) Geophys. J. Int. , vol.186 , pp. 521-528
    • Holme, R.1    Olsen, N.2    Bairstow, F.L.3
  • 15
    • 0001466353 scopus 로고
    • A statistical approach to the Earth's main magnetic field
    • Hulot, G. & Le Mouël, J.-L., 1994. A statistical approach to the Earth's main magnetic field, Phys. Earth planet. Inter., 82, 167-183.
    • (1994) Phys. Earth planet. Inter. , vol.82 , pp. 167-183
    • Hulot, G.1    Le Mouël, J.-L.2
  • 16
    • 0026443505 scopus 로고
    • Taking into account truncation problems and geomagnetic model accuracy in assessing computed flows at the core-mantle boundary
    • Hulot, G., Le Mouël, J.-L. & Wahr, J., 1992. Taking into account truncation problems and geomagnetic model accuracy in assessing computed flows at the core-mantle boundary, Geophys. J. Int., 108, 224-246.
    • (1992) Geophys. J. Int. , vol.108 , pp. 224-246
    • Hulot, G.1    Le Mouël, J.-L.2    Wahr, J.3
  • 17
    • 0031420953 scopus 로고    scopus 로고
    • Time-dependency of tangentially geostrophic core surface motions
    • Jackson, A., 1997. Time-dependency of tangentially geostrophic core surface motions, Phys. Earth planet. Inter., 103, 293-311.
    • (1997) Phys. Earth planet. Inter. , vol.103 , pp. 293-311
    • Jackson, A.1
  • 18
    • 0347372908 scopus 로고    scopus 로고
    • Four centuries of geomagnetic secular variation from historical records
    • Jackson, A., Jonkers, A.R.T. & Walker, M.R., 2000. Four centuries of geomagnetic secular variation from historical records, Phil. Trans. R. Soc. Lond. A, 358, 957-990.
    • (2000) Phil. Trans. R. Soc. Lond. A , vol.358 , pp. 957-990
    • Jackson, A.1    Jonkers, A.R.T.2    Walker, M.R.3
  • 19
    • 0005301201 scopus 로고
    • The Adams and Elsasser dynamo integrals
    • James, R.W., 1973. The Adams and Elsasser dynamo integrals, Phil. Trans. R. Soc. Lond. A, 331, 469-478.
    • (1973) Phil. Trans. R. Soc. Lond. A , vol.331 , pp. 469-478
    • James, R.W.1
  • 20
    • 0034352558 scopus 로고    scopus 로고
    • Effects of driving mechanisms in geodynamo models
    • Kutzner, C. & Christensen, U.R., 2000. Effects of driving mechanisms in geodynamo models, Geophys. Res. Lett., 27, 29-32.
    • (2000) Geophys. Res. Lett. , vol.27 , pp. 29-32
    • Kutzner, C.1    Christensen, U.R.2
  • 21
    • 0036325995 scopus 로고    scopus 로고
    • From stable dipolar to reversing numerical dynamos
    • Kutzner, C. & Christensen, U.R., 2002. From stable dipolar to reversing numerical dynamos, Phys. Earth planet. Inter., 131, 29-45.
    • (2002) Phys. Earth planet. Inter. , vol.131 , pp. 29-45
    • Kutzner, C.1    Christensen, U.R.2
  • 22
    • 31444442227 scopus 로고    scopus 로고
    • The BGS magnetic field candidate models for the 10th generation IGRF
    • Lesur, V., Macmillan, S. & Thomson, A., 2005. The BGS magnetic field candidate models for the 10th generation IGRF, Earth Planets Space, 57, 1157-1163.
    • (2005) Earth Planets Space , vol.57 , pp. 1157-1163
    • Lesur, V.1    Macmillan, S.2    Thomson, A.3
  • 23
    • 42349087616 scopus 로고    scopus 로고
    • GRIMM: the GFZ reference internal magnetic model based on vector satellite and observatory data
    • Lesur, V., Wardinski, I., Rother, M. & Mandea, M., 2008. GRIMM: the GFZ reference internal magnetic model based on vector satellite and observatory data, Geophys. J. Int., 173, 382-394.
    • (2008) Geophys. J. Int. , vol.173 , pp. 382-394
    • Lesur, V.1    Wardinski, I.2    Rother, M.3    Mandea, M.4
  • 24
    • 79952085777 scopus 로고    scopus 로고
    • The second generation of the GFZ reference internal magnetic model: GRIMM-2
    • Lesur, V., Wardinski, I., Hamoudi, M. & Rother, M., 2010a. The second generation of the GFZ reference internal magnetic model: GRIMM-2, Earth Planets Space, 62, 765-773.
    • (2010) Earth Planets Space , vol.62 , pp. 765-773
    • Lesur, V.1    Wardinski, I.2    Hamoudi, M.3    Rother, M.4
  • 26
    • 79955850521 scopus 로고    scopus 로고
    • The geomagnetic secular variation timescale in observations and numerical dynamo models
    • Lhuillier, F., Fournier, A., Hulot, G. & Aubert, J., 2011. The geomagnetic secular variation timescale in observations and numerical dynamo models, Geophys. Res. Lett., 38, L09306, doi:.
    • (2011) Geophys. Res. Lett. , vol.38
    • Lhuillier, F.1    Fournier, A.2    Hulot, G.3    Aubert, J.4
  • 27
    • 84984522369 scopus 로고
    • Spatial power spectrum of the main geomagnetic field, and extrapolation to the core
    • Lowes, F.J., 1974. Spatial power spectrum of the main geomagnetic field, and extrapolation to the core, Geophys. J. Int., 36, 717-730.
    • (1974) Geophys. J. Int. , vol.36 , pp. 717-730
    • Lowes, F.J.1
  • 28
    • 0000749016 scopus 로고
    • Das Mittel der Energiedichte des geomagnetischen Hauptfeldes an der Erdoberfläche und seine säkulare Änderung
    • Mauersberger, P., 1956. Das Mittel der Energiedichte des geomagnetischen Hauptfeldes an der Erdoberfläche und seine säkulare Änderung, Gerlands Beitr. Geophys., 65, 207-215.
    • (1956) Gerlands Beitr. Geophys. , vol.65 , pp. 207-215
    • Mauersberger, P.1
  • 29
    • 0029750915 scopus 로고    scopus 로고
    • Spatial and temporal power spectra of the geomagnetic field
    • McLeod, M.G., 1996. Spatial and temporal power spectra of the geomagnetic field, J. geophys. Res., 101, 2745-2764.
    • (1996) J. geophys. Res. , vol.101 , pp. 2745-2764
    • McLeod, M.G.1
  • 30
    • 60749092648 scopus 로고    scopus 로고
    • Rapidly changing flows in the Earth's core
    • Olsen, N. & Mandea, M., 2008. Rapidly changing flows in the Earth's core, Nature Geosci., 1, 390-394.
    • (2008) Nature Geosci. , vol.1 , pp. 390-394
    • Olsen, N.1    Mandea, M.2
  • 31
    • 31444454338 scopus 로고    scopus 로고
    • New parameterisation of external and induced fields in geomagnetic field modelling, and a candidate model for IGRF 2005
    • Olsen, N., Sabaka, T. & Lowes, F., 2005. New parameterisation of external and induced fields in geomagnetic field modelling, and a candidate model for IGRF 2005, Earth Planets Space, 57, 1141-1149.
    • (2005) Earth Planets Space , vol.57 , pp. 1141-1149
    • Olsen, N.1    Sabaka, T.2    Lowes, F.3
  • 32
    • 78650983403 scopus 로고    scopus 로고
    • The CHAOS-3 geomagnetic field model and candidates for the 11th generation IGRF
    • Olsen, N., Mandea, M., Sabaka, T.J. & Tøffner-Clausen, 2010. The CHAOS-3 geomagnetic field model and candidates for the 11th generation IGRF, Earth Planets Space, 62, 719-727.
    • (2010) Earth Planets Space , vol.62 , pp. 719-727
    • Olsen, N.1    Mandea, M.2    Sabaka, T.J.3    Tøffner-Clausen4
  • 33
    • 84856028113 scopus 로고    scopus 로고
    • From superchrons to secular variation: a broadband dynamo frequency spectrum for the geomagnetic dipole
    • Olson, P., Christensen, U.R. & Driscoll, P.E., 2012. From superchrons to secular variation: a broadband dynamo frequency spectrum for the geomagnetic dipole, Earth planet. Sci. Lett., 319-320, 75-82.
    • (2012) Earth planet. Sci. Lett. , vol.319-320 , pp. 75-82
    • Olson, P.1    Christensen, U.R.2    Driscoll, P.E.3
  • 34
    • 0034026755 scopus 로고    scopus 로고
    • Core flow inversions tested with numerical dynamo models
    • Rau, S., Christensen, U.R., Jackson, A. & Wicht, J., 2000. Core flow inversions tested with numerical dynamo models, Geophys. J. Int., 141, 485-497.
    • (2000) Geophys. J. Int. , vol.141 , pp. 485-497
    • Rau, S.1    Christensen, U.R.2    Jackson, A.3    Wicht, J.4
  • 35
    • 85008279022 scopus 로고
    • On analysis of the secular variation. 1. A hydromagnetic constraint: theory
    • Roberts, P.H. & Scott, S., 1965. On analysis of the secular variation. 1. A hydromagnetic constraint: theory, J. Geomagn. Geoelectr., 17, 137-151.
    • (1965) J. Geomagn. Geoelectr. , vol.17 , pp. 137-151
    • Roberts, P.H.1    Scott, S.2
  • 36
    • 0038406785 scopus 로고
    • Steady flows at the top of Earth's core derived from geomagnetic field models
    • Voorhies, C.V., 1986. Steady flows at the top of Earth's core derived from geomagnetic field models, J. geophys. Res., 91, 12444-12466.
    • (1986) J. geophys. Res. , vol.91 , pp. 12444-12466
    • Voorhies, C.V.1
  • 37
    • 0028811785 scopus 로고
    • Time-varying fluid flow at the top of Earth's core derived from definitive geomagnetic reference models
    • Voorhies, C.V., 1995. Time-varying fluid flow at the top of Earth's core derived from definitive geomagnetic reference models, J. geophys. Res., 100, 10029-10039.
    • (1995) J. geophys. Res. , vol.100 , pp. 10029-10039
    • Voorhies, C.V.1
  • 38
    • 2542487560 scopus 로고    scopus 로고
    • Narrow-scale flow and weak field by the top or Earth's core: evidence from Ørsted, Magsat, and secular variation
    • Voorhies, C.V., 2004. Narrow-scale flow and weak field by the top or Earth's core: evidence from Ørsted, Magsat, and secular variation, J. geophys. Res., 109, doi:.
    • (2004) J. geophys. Res. , vol.109
    • Voorhies, C.V.1
  • 39
    • 0028794269 scopus 로고
    • Geomagnetic field analysis - V. Determining steady core-surface flows directly from geomagnetic observations
    • Waddington, R., Gubbins, D. & Barber, N., 1995. Geomagnetic field analysis - V. Determining steady core-surface flows directly from geomagnetic observations, Geophys. J. Int., 122, 326-350.
    • (1995) Geophys. J. Int. , vol.122 , pp. 326-350
    • Waddington, R.1    Gubbins, D.2    Barber, N.3
  • 40
    • 84860842107 scopus 로고    scopus 로고
    • 3FM geomagnetic field model: application of a continuous frozen-flux constraint
    • 3FM geomagnetic field model: application of a continuous frozen-flux constraint, Geophys. J. Int., 189, 1409-1429, doi:.
    • (2012) Geophys. J. Int. , vol.189 , pp. 1409-1429
    • Wardinski, I.1    Lesur, V.2
  • 41
    • 77954037849 scopus 로고    scopus 로고
    • Torsional oscillations in dynamo simulations
    • Wicht, J. & Christensen, U.R., 2010. Torsional oscillations in dynamo simulations, Geophys. J. Int., 181, 1367-1380.
    • (2010) Geophys. J. Int. , vol.181 , pp. 1367-1380
    • Wicht, J.1    Christensen, U.R.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.