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Alexandre Fournier

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Can machine learning reveal precursors of reversals of the geomagnetic axial dipole field?

K. Gwirtz , T. Davis , M. Morzfeld , C. Constable , A. Fournier et al.
Geophysical Journal International, 2022, 231 (1), pp.520-535. ⟨10.1093/gji/ggac195⟩
Journal articles insu-03748536v1
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A taxonomy of simulated geomagnetic jerks

Julien Aubert , Philip W Livermore , Christopher C Finlay , Alexandre Fournier , Nicolas Gillet et al.
Geophysical Journal International, 2022, 231 (1), pp.650-672. ⟨10.1093/gji/ggac212⟩
Journal articles hal-03719369v1
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An assessment of implicit-explicit time integrators for the pseudo-spectral approximation of Boussinesq thermal convection in an annulus

Venkatesh Gopinath , Thomas Gastine , Alexandre Fournier
Journal of Computational Physics, 2022, 460, pp.110965. ⟨10.1016/j.jcp.2022.110965⟩
Journal articles hal-03673292v1
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Sustaining Earth’s magnetic dynamo

Maylis Landeau , Alexandre Fournier , Henri-Claude Nataf , David Cébron , Nathanaël Schaeffer et al.
Nature Reviews Earth & Environment, 2022, 3, pp.255-269. ⟨10.1038/s43017-022-00264-1⟩
Journal articles hal-03623383v1
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Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field

P. Alken , Erwan Thébault , C. D. Beggan , J. Aubert , J. Baerenzung et al.
Earth Planets and Space, 2021, 73, pp.1281-1293. ⟨10.1186/s40623-020-01281-4⟩
Journal articles insu-03584324v1
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Tracing the geomagnetic field intensity variations in Upper Mesopotamia during the Pottery Neolithic to improve ceramic-based chronologies

Y. Gallet , A. Fournier , P.W. W Livermore
Journal of Archaeological Science, 2021, 132, pp.105430. ⟨10.1016/j.jas.2021.105430⟩
Journal articles hal-03437412v1
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A secular variation candidate model for IGRF-13 based on Swarm data and ensemble inverse geodynamo modelling

Alexandre Fournier , Julien Aubert , Vincent Lesur , Guillaume Ropp
Earth Planets and Space, 2021, 73 (1), pp.43. ⟨10.1186/s40623-020-01309-9⟩
Journal articles hal-03142036v1
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International Geomagnetic Reference Field: the thirteenth generation

P Alken , E Thébault , C D Beggan , Hagay Amit , J Aubert et al.
Earth Planets and Space, 2021, 73, pp.49. ⟨10.1186/s40623-020-01288-x⟩
Journal articles cea-03141089v1
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Can one use Earth's magnetic axial dipole field intensity to predict reversals?

K. Gwirtz , M. Morzfeld , A. Fournier , G. Hulot
Geophysical Journal International, 2021, 225, pp.277-297. ⟨10.1093/gji/ggaa542⟩
Journal articles insu-03590073v1
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Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field

P. Alken , Erwan Thébault , C. D. Beggan , J. Aubert , J. Baerenzung et al.
Earth Planets and Space, 2021, 73, pp.1281-1293. ⟨10.1186/s40623-020-01281-4⟩
Journal articles insu-04033776v1
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Analyzing the geomagnetic axial dipole field moment over the historical period from new archeointensity results at Bukhara (Uzbekistan, Central Asia)

Marie Troyano , Yves Gallet , Agnès Genevey , Vladimir Pavlov , Alexandre Fournier et al.
Physics of the Earth and Planetary Interiors, 2021, 310, pp.106633. ⟨10.1016/j.pepi.2020.106633⟩
Journal articles hal-03454154v1

Geomagnetic semblance and dipolar–multipolar transition in top-heavy double-diffusive geodynamo models

Théo Tassin , Thomas Gastine , Alexandre Fournier
Geophysical Journal International, 2021, 226 (3), pp.1897-1919. ⟨10.1093/gji/ggab161⟩
Journal articles hal-03424106v1
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Tracing the geomagnetic field intensity variations in Upper Mesopotamia during the Pottery Neolithic to improve ceramic-based chronologies

Y Gallet , A Fournier , P W Livermore
Journal of Archaeological Science, 2021, 132, pp.105430. ⟨10.1016/j.jas.2021.105430⟩
Journal articles hal-03436220v1
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Archeomagnetic intensity variations during the era of geomagnetic spikes in the Levant

Philip W Livermore , Yves Gallet , Alexandre Fournier
Physics of the Earth and Planetary Interiors, 2021, 312, ⟨10.1016/j.pepi.2021.106657⟩
Journal articles hal-03444542v1
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Archeomagnetic intensity investigations of French medieval ceramic workshops: Contribution to regional field modeling and archeointensity-based dating

Agnès Genevey , Yves Gallet , Erwan Thébault , Philip W. Livermore , Alexandre Fournier et al.
Physics of the Earth and Planetary Interiors, 2021, 318, pp.106750. ⟨10.1016/j.pepi.2021.106750⟩
Journal articles hal-03284542v1
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Physics-based secular variation candidate models for the IGRF

Alexandre Fournier , Julien Aubert , Vincent Lesur , Erwan Thébault
Earth Planets and Space, 2021, 73 (1), ⟨10.1186/s40623-021-01507-z⟩
Journal articles hal-03385990v1
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Dynamo-based limit to the extent of a stable layer atop Earth's core

Thomas Gastine , Julien Aubert , Alexandre Fournier
Geophysical Journal International, 2020, 222 (2), pp.1433 - 1448. ⟨10.1093/gji/ggaa250⟩
Journal articles insu-02878730v1
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Analysis of geomagnetic field intensity variations in Mesopotamia during the third millennium BC with archeological implications

Yves Gallet , Michel Fortin , Alexandre Fournier , Maxime Le Goff , Philip Livermore et al.
Earth and Planetary Science Letters, 2020, 537, pp.116183. ⟨10.1016/j.epsl.2020.116183⟩
Journal articles hal-03028425v1
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Imprint of magnetic flux expulsion at the core-mantle boundary on geomagnetic field intensity variations

M Troyano , A. Fournier , Y. Gallet , C. Finlay
Geophysical Journal International, 2020, 221 (3), pp.1984-2009. ⟨10.1093/gji/ggaa126⟩
Journal articles insu-02878663v1
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Seismic Wave-Based Constraints on Geodynamical Processes: An Application to Partial Melting Beneath the Réunion Island

T. Franken , J. J. Armitage , N. Fuji , A. Fournier
Geochemistry, Geophysics, Geosystems, 2020, 21, ⟨10.1029/2019GC008815⟩
Journal articles insu-03748813v1
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Refining the high-fidelity archaeointensity curve for western Europe over the past millennium: analysis of Tuscan architectural bricks (Italy)

Agnes Genevey , Claudia Principe , Yves Gallet , Giuseppe Clemente , Maxime Le Goff et al.
The Geological Society, London, Special Publications, 2019, 497 (1), pp.73-88. ⟨10.1144/SP497-2019-74⟩
Journal articles hal-03028885v1
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Impact of the Earth’s magnetic field secular drift on the low altitude proton radiation belt from years 1900 to 2050

S. Bourdarie , A. Fournier , A. Sicard , G. Hulot , Julien Aubert et al.
IEEE Transactions on Nuclear Science, 2019, pp.1-1. ⟨10.1109/TNS.2019.2897378⟩
Journal articles hal-02129936v1
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Ensemble Kalman filter for the reconstruction of the Earth's mantle circulation

Marie Bocher , Alexandre Fournier , Nicolas Coltice
Nonlinear Processes in Geophysics, 2018, 25 (1), pp.99--123. ⟨10.5194/npg-25-99-2018⟩
Journal articles hal-02358980v1
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Transdimensional inference of archeomagnetic intensity change

Philip W Livermore , Alexandre Fournier , Yves Gallet , Thomas Bodin
Geophysical Journal International, 2018, 215 (3), pp.2008-2034. ⟨10.1093/gji/ggy383⟩
Journal articles insu-02303785v1
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Coarse predictions of dipole reversals by low-dimensional modeling and data assimilation

Matthias Morzfeld , Alexandre Fournier , Gauthier Hulot
Physics of the Earth and Planetary Interiors, 2017, 262, pp.8-27. ⟨10.1016/j.pepi.2016.10.007⟩
Journal articles insu-03748879v1

A particle-in-cell method for studying double-diffusive convection in the liquid layers of planetary interiors

Mathieu Bouffard , Stéphane Labrosse , Gael Choblet , Alexandre Fournier , Julien Aubert et al.
Journal of Computational Physics, 2017, 346, pp.552-571. ⟨10.1016/j.jcp.2017.06.028⟩
Journal articles hal-02329268v1
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Spherical convective dynamos in the rapidly rotating asymptotic regime

Julien Aubert , Thomas Gastine , Alexandre Fournier
Journal of Fluid Mechanics, 2017, 813, pp.558-593. ⟨10.1017/jfm.2016.789⟩
Journal articles insu-02918361v1
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Turbulent geodynamo simulations: a leap towards Earth's core

Nathanaël Schaeffer , Dominique Jault , Henri-Claude Nataf , Alexandre Fournier
Geophysical Journal International, 2017, ⟨10.1093/gji/ggx265⟩
Journal articles insu-01422187v3
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Variational Estimation of the Large-scale Time-dependent Meridional Circulation in the Sun: Proofs of Concept with a Solar Mean Field Dynamo Model

Ching Pui Hung , Allan Sacha Brun , Alexandre Fournier , Laurène Jouve , Olivier Talagrand et al.
The Astrophysical Journal, 2017, 849 (2), pp.160. ⟨10.3847/1538-4357/aa91d1⟩
Journal articles cea-02127665v1
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Frequency spectrum of the geomagnetic field harmonic coefficients from dynamo simulations

Claire Bouligand , Nicolas Gillet , Dominique Jault , Nathanaël Schaeffer , Alexandre Fournier et al.
Geophysical Journal International, 2016, 207, pp.1142 - 1157. ⟨10.1093/gji/ggw326⟩
Journal articles hal-01451189v1

Coupled dynamics of Earth's geomagnetic westward drift and inner core super-rotation

Guillaume Pichon , Julien Aubert , Alexandre Fournier
Earth and Planetary Science Letters, 2016, 437, pp.114-126. ⟨10.1016/j.epsl.2016.01.004⟩
Journal articles insu-03581676v1
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Deciphering records of geomagnetic reversals

Jean-Pierre Valet , Alexandre Fournier
Reviews of Geophysics, 2016, ⟨10.1002/2015RG000506⟩
Journal articles insu-02400962v1
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Modelling the archaeomagnetic field under spatial constraints from dynamo simulations: a resolution analysis

Sébastien Sanchez , A. Fournier , J. Aubert , E. Cosme , Y. Gallet et al.
Geophysical Journal International, 2016, 207 (2), pp.983-1002. ⟨10.1093/gji/ggw316⟩
Journal articles insu-01864279v1
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A candidate secular variation model for IGRF-12 based on Swarm data and inverse geodynamo modelling

Alexandre Fournier , Julien Aubert , Erwan Thebault
Earth Planets and Space, 2015, 67, pp.81. ⟨10.1186/s40623-015-0245-8⟩
Journal articles insu-02134305v1
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International Geomagnetic Reference Field: the 12th generation

Erwan Thébault , Christopher C Finlay , Ciarán D Beggan , Patrick Alken , Julien J Aubert et al.
Earth Planets and Space, 2015, 67, pp.79. ⟨10.1186/s40623-015-0228-9⟩
Journal articles insu-01412375v1

Estimating the Deep Solar Meridional Circulation Using Magnetic Observations and a Dynamo Model: A Variational Approach

Ching Pui Hung , Laurène Jouve , Allan Sacha Brun , Alexandre Fournier , Olivier Talagrand et al.
The Astrophysical Journal, 2015, 814, ⟨10.1088/0004-637X/814/2/151⟩
Journal articles insu-03634043v1
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The impact of geomagnetic spikes on the production rates of cosmogenic 14 C and 10 Be in the Earth's atmosphere

Alexandre Fournier , Yves Gallet , Ilya Usoskin , Philip W Livermore , Gennady A Kovaltsov et al.
Geophysical Research Letters, 2015, 42 (8), pp.2759-2766. ⟨10.1002/2015GL063461⟩
Journal articles insu-01862970v1
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A sequential data assimilation approach for the joint reconstruction of mantle convection and surface tectonics

M Bocher , N Coltice , Alexandre Fournier , Paul J. Tackley
Geophysical Journal International, 2015, 204 (1), pp.200-214. ⟨10.1093/gji/ggv427⟩
Journal articles hal-01355793v1

Core-flow constraints on extreme archeomagnetic intensity changes

Philip W. Livermore , Alexandre Fournier , Yves Gallet
Earth and Planetary Science Letters, 2014, 387, pp.145-156. ⟨10.1016/j.epsl.2013.11.020⟩
Journal articles insu-03581150v1

Hydromagnetic quasi-geostrophic modes in rapidly rotating planetary cores

E. Canet , C. C. Finlay , A. Fournier
Physics of the Earth and Planetary Interiors, 2014, 229, pp.1-15. ⟨10.1016/j.pepi.2013.12.006⟩
Journal articles insu-03581131v1

Corrigendum to “Hydromagnetic quasi-geostrophic modes in rapidly rotating planetary cores” [Phys. Earth Planet. Inter. 229 (2014) 1-15]

E. Canet , C. C. Finlay , A. Fournier
Physics of the Earth and Planetary Interiors, 2014, 234, pp.60-60. ⟨10.1016/j.pepi.2014.05.003⟩
Journal articles insu-03581096v1

Bottom-up control of geomagnetic secular variation by the Earth’s inner core

Julien Aubert , Christopher C Finlay , Alexandre Fournier
Nature, 2013, 502 (7470), pp.219-223. ⟨10.1038/nature12574⟩
Journal articles insu-02918976v1
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An ensemble Kalman filter for the time-dependent analysis of the geomagnetic field

Alexandre Fournier , Lars Nerger , Julien Aubert
Geochemistry, Geophysics, Geosystems, 2013, 14 (10), pp.4035-4043. ⟨10.1002/ggge.20252⟩
Journal articles insu-02919123v1
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A mean-field Babcock-Leighton solar dynamo model with long-term variability

Sabrina Sanchez , Alexandre Fournier , Katia J Pinheiro , Julien Aubert
Anais da Academia Brasileira de Ciências, 2013, 86 (1), pp.11-26. ⟨10.1590/0001-37652014111212⟩
Journal articles insu-02134326v1

The influence of a sloping bottom endwall on the linear stability in the thermally driven baroclinic annulus with a free surface

Thomas von Larcher , Alexandre Fournier , Rainer Hollerbach
Theoretical and Computational Fluid Dynamics, 2013, 27, pp.433-451. ⟨10.1007/s00162-012-0289-3⟩
Journal articles insu-03581783v1
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THE PREDICTABILITY OF ADVECTION-DOMINATED FLUX-TRANSPORT SOLAR DYNAMO MODELS

Sabrina Sanchez , Alexandre Fournier , Julien Aubert
The Astrophysical Journal, 2013, 781 (1), pp.8. ⟨10.1088/0004-637X/781/1/8⟩
Journal articles insu-01411576v1
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The geomagnetic secular-variation timescale in observations and numerical dynamo models

Florian Lhuillier , Alexandre Fournier , Gauthier Hulot , Julien Aubert
Geophysical Research Letters, 2011, 38 (9), pp.L09306. ⟨10.1029/2011GL047356⟩
Journal articles insu-01410184v1
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Inferring internal properties of Earth's core dynamics and their evolution from surface observations and a numerical geodynamo model

J. Aubert , A. Fournier
Nonlinear Processes in Geophysics, 2011, 18, pp.657-674. ⟨10.5194/npg-18-657-2011⟩
Journal articles insu-03606442v1
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Inference on core surface flow from observations and 3-D dynamo modelling

Alexandre Fournier , Julien Aubert , Erwan Thébault
Geophysical Journal International, 2011, ⟨10.1111/j.1365-246X.2011.05037.x⟩
Journal articles insu-01308359v1

Fast torsional waves and strong magnetic field within the Earth's core

Nicolas Gillet , Dominique Jault , Elisabeth Canet , Alexandre Fournier
Nature, 2010, 465, pp.74-77. ⟨10.1038/NATURE09010⟩
Journal articles insu-00545040v1

An Introduction to Data Assimilation and Predictability in Geomagnetism

Alexandre Fournier , Gauthier Hulot , Dominique Jault , Weijia Kuang , Andrew Tangborn et al.
Space Science Reviews, 2010, 155 (1-4), pp.247-291. ⟨10.1007/S11214-010-9669-4⟩
Journal articles insu-00565056v1
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Forward and adjoint quasi-geostrophic models of the geomagnetic secular variation

Elisabeth Canet , Alexandre Fournier , Dominique Jault
Journal of Geophysical Research : Solid Earth, 2009, 114, pp.B11101. ⟨10.1029/2008JB006189⟩
Journal articles hal-00455441v1
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A 2-D spectral-element method for computing spherical-earth seismograms—II. Waves in solid–fluid media

Tarje Nissen-Meyer , Alexandre Fournier , F. A. Dahlen
Geophysical Journal International, 2008, 174 (3), pp.873 à 888. ⟨10.1111/j.1365-246X.2008.03813.x⟩
Journal articles insu-00354179v1

Energy distribution in nonaxisymmetric magnetic Taylor-Couette flow

M. Gellert , G. Rudiger , Alexandre Fournier
Astronomical Notes / Astronomische Nachrichten, 2007, 328 (10), pp.1162 à 1165. ⟨10.1002/asna.200710862⟩
Journal articles insu-00346071v1
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A case for variational geomagnetic data assimilation: insights from a one-dimensional, nonlinear, and sparsely observed MHD system

A. Fournier , C. Eymin , T. Alboussière
Nonlinear Processes in Geophysics, 2007, 14 (2), pp.163-180
Journal articles hal-00331098v1

Spherical Couette flow in a dipolar magnetic field

R. Hollerbach , Elisabeth Canet , Alexandre Fournier
European Journal of Mechanics - B/Fluids, 2007, 26 (6), pp.729 à 737. ⟨10.1016/j.euromechflu.2007.02.002⟩
Journal articles insu-00346226v1
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A two-dimensional spectral-element method for computing spherical-earth seismograms – I. Moment-tensor source

Tarje Nissen-Meyer , Alexandre Fournier , F.A. Dahlen
Geophysical Journal International, 2007, 168 (3), pp.1067-1092. ⟨10.1111/j.1365-246X.2006.03121.x⟩
Journal articles insu-00199693v1
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A case for variational geomagnetic data assimilation: insights from a one-dimensional, nonlinear, and sparsely observed MHD system

Alexandre Fournier , Céline Eymin , Thierry Alboussière
Nonlinear Processes in Geophysics, 2007, 14, pp.163-180
Journal articles hal-00145920v1
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Spherical-earth Fréchet sensitivity kernels

Tarje Nissen-Meyer , F. A. Dahlen , Alexandre Fournier
Geophysical Journal International, 2007, 168 (3), pp.1051 à 1066. ⟨10.1111/j.1365-246X.2006.03123.x⟩
Journal articles insu-00347499v1

A Fourier-spectral element algorithm for thermal convection in rotating axisymmetric containers.

Alexandre Fournier , H.P. Bunge , R. Hollerbach , J.P. Vilotte
Journal of Computational Physics, 2005, 204 (2), pp.462-489. ⟨10.1016/j.jcp.2004.10.020⟩
Journal articles hal-00109462v1
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Application of the spectral-element method to the axisymmetric Navier-Stokes equation

A. Fournier , H. -P. Bunge , R. Hollerbach , J. -P. Vilotte
Geophysical Journal International, 2004, 156, pp.682-700. ⟨10.1111/j.1365-246X.2004.02149.x⟩
Journal articles insu-03600288v1

Towards Estimating the Solar Meridional Flow and Predicting the 11-yr Cycle Using Advanced Variational Data Assimilation Techniques

Ching Pui Hung , Allan Sacha Brun , Alexandre Fournier , Laurène Jouve , Olivier Talagrand et al.
Space Weather of the Heliosphere: Processes and Forecasts, 0000, à renseigner, Unknown Region. pp.183-186, ⟨10.1017/S1743921317010754⟩
Conference papers insu-03589340v1

A solar cycle 25 prediction based on 4D-var data assimilation approach

Allan Sacha Brun , Ching Pui Hung , Alexandre Fournier , Laurène Jouve , Olivier Talagrand et al.
Solar and Stellar Magnetic Fields: Origins and Manifestations, 0000, à renseigner, Unknown Region. pp.138-146, ⟨10.1017/S1743921320003993⟩
Conference papers insu-03584813v1

Applications archéologiques des recherches en archéomagnétisme menées à l'institut de Physique du Globe de Paris (IPGP) et au Laboratoire d'Archéologie Moléculaire et Structurale (LAMS)

Yves Gallet , Agnès Genevey , Maxime Le Goff , Nicolas Warmé , Alexandre Fournier et al.
27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Conference papers hal-03587745v1

Archeointensity-based dating method: Examples from France and the Near-East

Agnès Genevey , Yves Gallet , Erwan Thébault , Phil Livermore , Alexandre Fournier et al.
27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Conference papers hal-03587757v1

Geomagnetic intensity variations in Western Europe over the past 1700 years: Contributions and limitations of intensity dating of archeological ceramics (Invited)

Agnès Genevey , Yves Gallet , Erwan Thébault , Philip W Livermore , Alexandre Fournier et al.
AGU Fall Meeting 2021, American Geophysical Union, Dec 2021, NEw Orleans, United States
Conference papers hal-03962382v1
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Impact of the Earth’s magnetic field secular drift on the low altitude proton radiation belt from years 1900 to 2050

Sebastien Bourdarie , Alexandre Fournier , Angélica Sicard , Gauthier Hulot , Julien Aubert et al.
RADECS 2018, Sep 2018, GOTEBORG, Sweden
Conference papers hal-01982982v1

Impact of deep mantle structural heterogeneities on core-diffracted traveltimes: constraints on full-wave Born sensitivity kernel tomography

Beucler É , Y. Capdeville , A. Fournier , T. Nissen-Meyer
AGU Fall Meeting, Dec 2010, San-Francisco, United States
Conference papers hal-00588840v1

Archeointensity-based dating method: Examples from France and the Near-East

A. Genevey , Yves Gallet , Erwan Thébault , Philip W Livermore , Alexandre Fournier et al.
27e édition de la Réunion des Sciences de la Terre, Nov 2021, Lyon, France
Conference poster hal-03962428v1