H. Amit and P. Olson, Helical core flow from geomagnetic secular variation, Physics of the Earth and Planetary Interiors, vol.147, issue.1, pp.1-25, 2004.
DOI : 10.1016/j.pepi.2004.02.006

H. Amit and P. Olson, Time-average and time-dependent parts of core flow, Physics of the Earth and Planetary Interiors, vol.155, issue.1-2, pp.120-139, 2006.
DOI : 10.1016/j.pepi.2005.10.006

H. Amit, P. Olson, and U. Christensen, Tests of core flow imaging methods with numerical dynamos, Geophys, J. Int, vol.168, pp.27-39, 2007.

H. Amit, J. Aubert, G. Hulot, and P. Olson, A simple model for mantle?driven flow at the top of Earth's core, Earth Planets Space, pp.845-854, 2008.

J. Aubert, Steady zonal flows in spherical shell dynamos, Journal of Fluid Mechanics, vol.542, issue.-1, pp.53-6710, 2005.
DOI : 10.1017/S0022112005006129

J. Aubert, H. Amit, and G. Hulot, Detecting thermal boundary control in surface flows from numerical dynamos, Physics of the Earth and Planetary Interiors, vol.160, issue.2, pp.143-156, 2007.
DOI : 10.1016/j.pepi.2006.11.003

URL : https://hal.archives-ouvertes.fr/hal-00144095

J. Aubert, H. Amit, G. Hulot, and P. Olson, Thermochemical flows couple the Earth's inner core growth to mantle heterogeneity, Nature, vol.94, issue.7205, pp.758-76110, 2008.
DOI : 10.1038/nature07109

J. Aubert, J. Aurnou, and J. Wicht, The magnetic structure of convection-driven numerical dynamos, Geophysical Journal International, vol.172, issue.3, pp.945-956, 2008.
DOI : 10.1111/j.1365-246X.2007.03693.x

URL : https://hal.archives-ouvertes.fr/hal-00365069

J. Bloxham, Time-independent and time-dependent behaviour of high-latitude flux bundles at the core-mantle boundary, Geophysical Research Letters, vol.20, issue.18, pp.185410-1029, 2002.
DOI : 10.1029/2001GL014543

J. Bloxham and D. Gubbins, Thermal core??? mantle interactions, Thermal core?mantle interactions, pp.511-513, 1987.
DOI : 10.1038/311709a0

J. Bloxham and A. Jackson, Fluid flow near the surface of Earth's outer core, Reviews of Geophysics, vol.94, issue.2, pp.97-120, 1991.
DOI : 10.1029/90RG02470

J. Carlut and V. Courtillot, How complex is the time?averaged geomagnetic field over the past 5 Myr?, Geophys, J. Int, vol.134, pp.527-544, 1998.

U. Christensen and J. Aubert, Scaling properties of convection? driven dynamos in rotating spherical shells and application to planetary magnetic fields, Geophys, J. Int, vol.166, pp.97-114, 2006.

U. Christensen and P. Olson, Secular variation in numerical geodynamo models with lateral variations of boundary heat flow, Physics of the Earth and Planetary Interiors, vol.138, issue.1, pp.39-5410, 2003.
DOI : 10.1016/S0031-9201(03)00064-5

U. Christensen, P. Olson, and G. Glatzmaier, Numerical modelling of the geodynamo: a systematic parameter study, Geophysical Journal International, vol.138, issue.2, pp.393-409, 1999.
DOI : 10.1046/j.1365-246X.1999.00886.x

G. Glatzmaier, Geodynamo Simulations???How Realistic Are They?, Annual Review of Earth and Planetary Sciences, vol.30, issue.1, pp.237-257, 2002.
DOI : 10.1146/annurev.earth.30.091201.140817

G. Glatzmaier, R. Coe, L. Hongre, and P. Roberts, The role of the Earth's mantle in controlling the frequency of geomagnetic reversals, Nature, vol.401, issue.6756, pp.885-89010, 1999.
DOI : 10.1038/44776

D. Gubbins, P. Willis, and B. Sreenivasan, Correlation of Earth???s magnetic field with lower mantle thermal and seismic structure, Physics of the Earth and Planetary Interiors, vol.162, issue.3-4, pp.256-260, 2007.
DOI : 10.1016/j.pepi.2007.04.014

G. Hulot, C. Eymin, B. Langlais, M. Mandea, and N. Olsen, Small-scale structure of the geodynamo inferred from Oersted and Magsat satellite data, Nature, vol.416, issue.6881, pp.620-62310, 2002.
DOI : 10.1038/416620a

A. Jackson, A. Jonkers, and M. Walker, Four centuries of geomagnetic secular variation from historical records, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.358, issue.1768, pp.957-990, 2000.
DOI : 10.1098/rsta.2000.0569

C. Johnson and C. Constable, The time-averaged geomagnetic field as recorded by lava flows over the past 5 Myr, Geophysical Journal International, vol.122, issue.2, pp.489-519, 1995.
DOI : 10.1111/j.1365-246X.1995.tb07010.x

C. Johnson and C. Constable, The time-averaged geomagnetic field: global and regional biases for 0-5 Ma, Geophysical Journal International, vol.131, issue.3, pp.643-666, 1997.
DOI : 10.1111/j.1365-246X.1997.tb06604.x

C. Johnson and P. Mcfadden, Time-Averaged Field and Paleosecular Variation, Treatise on Geophysics, pp.417-453, 2007.
DOI : 10.1016/B978-044452748-6/00096-1

P. Kelly and D. Gubbins, The geomagnetic field over the past 5 million years, Geophysical Journal International, vol.128, issue.2, pp.315-330, 1997.
DOI : 10.1111/j.1365-246X.1997.tb01557.x

A. Khokhlov, G. Hulot, and J. Carlut, Towards a self-consistent approach to palaeomagnetic field modelling, Geophysical Journal International, vol.145, issue.1, pp.157-171, 2001.
DOI : 10.1111/j.1365-246X.2001.01386.x

URL : https://hal.archives-ouvertes.fr/insu-01409126

A. Khokhlov, G. Hulot, and C. Bouligand, Testing statistical palaeomagnetic field models against directional data affected by measurement errors, Geophys, J. Int, vol.167, pp.635-648, 2006.

M. Korte and C. Constable, Continuous geomagnetic models for the past 7 millennia ii: Cals7k, Geochem. Geophys. Geosyst, vol.6, issue.2, pp.2-1610, 2005.

S. Labrosse, Hotspots, mantle plumes and core heat loss, Earth and Planetary Science Letters, vol.199, issue.1-2, pp.147-15610, 2002.
DOI : 10.1016/S0012-821X(02)00537-X

URL : https://hal.archives-ouvertes.fr/hal-00599647

G. Masters, G. Laske, H. Bolton, and A. Dziewonski, The relative behavior of shear velocity, bulk sound velocity, and compressional velocity in the mantle: Implications for chemical and thermal structure, in Earth's Deep Interior, Geophys. Monogr. Ser. AGU, vol.117, 2000.

P. Olson and U. Christensen, The time averaged magnetic field in numerical dynamos with nonuniform boundary heat flow, Geophys, J. Int, vol.151, pp.809-823, 2002.

P. Olson, U. Christensen, and G. Glatzmaier, Numerical modeling of the geodynamo: Mechanisms of field generation and equilibration, Journal of Geophysical Research: Solid Earth, vol.24, issue.B5, pp.383-1010, 1999.
DOI : 10.1029/1999JB900013

P. Olson, I. Sumita, and J. Aurnou, Diffusive magnetic images of upwelling patterns in the core, Journal of Geophysical Research: Solid Earth, vol.86, issue.B12, pp.234810-1029, 2002.
DOI : 10.1029/2001JB000384

G. Sarson, C. Jones, and A. Longbottom, The influence of boundary region heterogeneities on the geodynamo, Physics of the Earth and Planetary Interiors, vol.101, issue.1-2, pp.13-3210, 1997.
DOI : 10.1016/S0031-9201(96)03248-7

R. Secco and H. Schloessin, The electrical resistivity of solid and liquid Fe at pressures up to 7 GPa, Journal of Geophysical Research, vol.34, issue.11, pp.5887-589410, 1989.
DOI : 10.1029/JB094iB05p05887

B. Sreenivasan and D. Gubbins, Dynamos with weakly convecting outer layers: implications for core-mantle boundary interaction, Geophysical & Astrophysical Fluid Dynamics, vol.104, issue.4, pp.395-407, 2008.
DOI : 10.1016/j.pepi.2007.08.002

F. Takahashi, H. Tsunakawa, M. Matsushima, N. Mochizuki, and Y. Honkura, Effects of thermally heterogeneous structure in the lowermost mantle on the geomagnetic field strength, Earth and Planetary Science Letters, vol.272, issue.3-4, pp.738-746, 2008.
DOI : 10.1016/j.epsl.2008.06.017

P. Willis, B. Sreenivasan, and D. Gubbins, Thermal core???mantle interaction: Exploring regimes for ???locked??? dynamo action, Physics of the Earth and Planetary Interiors, vol.165, issue.1-2, pp.83-92, 2007.
DOI : 10.1016/j.pepi.2007.08.002

URL : https://hal.archives-ouvertes.fr/hal-00532125