Stéphane Operto – Directeur de recherche CNRS

Stéphane Operto
Directeur de recherche CNRS
Geoazur
CNRS - UNSA - IRD - OCA
250, rue Albert Einstein - Sophia-Antipolis,
Valbonne, FRANCE 06560
H +33 6 32 32 08 36
T +33 4 83 61 87 52
u +33 4 83 61 85 01
B [email protected]
Intérêts professionnels
Géophysique interne: Modélisation sismique, problèmes inverses, imagerie sismique par inversion
des formes d’ondes, traitement du signal
Formation & carrière
Oct. 2014 Promotion au grade de directeur de recherche de rang 2 du CNRS
Déc. 2006 Habilitation à diriger les recherches
Octobre 2001 Promotion au grade de chargé de recherche de rang 1 du CNRS
1991–1995 Thèse Géophysique marine, Structure et origine du plateau sous-marin de Kerguelen (océan
Indien austral): implications géodynamiques. Modélisation de données sismiques grand-angle
marines,Université de Paris 6
1990–1991 DEA Géodynamique des marges océaniques et des chaines de montagne, University of Nice
1986–1989 Diplôme d’ingénieur, Ecole Nationale Supérieure des Arts et Métiers (ENSAM), Aix-en-Provence,
Paris
Expérience professionelle
1998–actuel Chercheur CNRS, UMR Geoazur, Sophia-Antipolis, FRANCE
1996–1997 Stage post-doctoral, Centre de géophysique, Ecole des Mines de Paris, Fontainebleau
1995–1996 Stage post-doctotal, Institute for Geophysics, University of Texas, Austin
Reconnaissances & Prix
2014 Honorable mention in the category of Best paper in Geophysics for "Computationally-efficient threedimensional acoustic finite-difference frequency-domain seismic modeling in vertical transversely
isotropic media with sparse direct solver" by S. Operto et al.
2011 Geophysics bright spots for "Joint ray+Born least-squares migration and simulated annealing
optimization for target-oriented quantitative seismic imaging", (co-authored with A. Ribodetti, W.
Agudelo, J. Y. Collot and J. Virieux)
2009, 2012 "Outstanding reviewer" pour la revue GeophysicalJournalInternational.
2009 Geophysics bright spots for "Seismic imaging of complex onshore structures by two-dimensional
elastic frequency-domain full waveform inversion", (co-authored with R. Brossier and J. Virieux)
2008 Best paper in Geophysics for "Velocity model-building by 3D frequency-domain full-waveform
inversion of wide-aperture seismic data", (co-authored avec Hafedh Ben Hadj Ali and Jean Virieux)
2006 Top 30 presentation at SEG Annual Meeting for "3D frequency-domain finite-difference modeling
of acoustic wave propagation using a massively parallel direct solver: a feasibility study" (coauthored with J. Virieux, P. Amestoy, J. -Y. L’Excellent) and "2D fine-scale velocity model of the
subduction channel in Gulf of Guayaquil by integrated PSDM and simulated annealing optimization"
(co-authored with A. Ribodetti, W. Agudelo, J. -Y. Collot)
2005 Louis Cagniard Award, EAGE, Best poster presentation Annual Meeting, Madrid 1995 (co-authored
with J. Virieux and J. -X. Dessa).
1995 AGU Highlights for "Multiscale seismic imaging of the eastern Nankai trough by full waveform
inversion (co-authored with J. X. Dessa, S. Kodaira, A. Nakanishi, G. Pascal, J. Virieux and Y.
Kaneda).
Encadrements de stages post-doctoraux et de thésards
Thèses
2002 Bernhard Hustedt (Principal encadrant: J. Virieux), Ph. D., Propagation des ondes: approches
espace et ondelettes, University of Nice
2003 Céline Ravaut (Encadrant: S. Operto), Ph. D., Tomographie sismique haute résolution de la croute
terrestre: inversion combinée des temps de trajet et des formes d’ondes de données de sismique
réfraction - réflexion grand-angle multitrace, University Paris 6
2009 Romain Brossier (co-encadrants: S. Operto & J. Virieux), Ph. D., Imagerie sismique à deux dimensions des milieux visco-élastiques par inversion des formes d’ondes : développements méthodologiques
et applications, University of Nice
2009 Hafedh Ben Hadj Ali (co-encadrants: S. Operto & J. Virieux), Ph. D., Three dimensional
visco-acoustic frequency-domain full waveform inversion, University of Nice
2011 Vincent Etienne (co-encadrants: S. Operto & J. Virieux), Ph. D., Modélisation des ondes sismiques
dans des milieux élastiques 3D : application à l’inversion des formes d’ondes., University of Nice
2012 Vincent Prieux (co-encadrants: S. Operto & J. Virieux), Ph. D., Imagerie du champ pétrolier de
Valhall par inversion des formes d’onde élastique, University of Nice
2012 Guanghui Hu (co-encadrants: S. Operto & J. Virieux), Ph. D., Imagerie 3D du champ pétrolier de
Valhall par inversion des formes d’onde 3D, University of Grenoble
2012 Yaser Gholami (co-encadrants: S. Operto & A. Ribodetti), Ph. D., Imagerie des milieux anisotropes
par inversion de formes d’onde, University of Nice
2012 Damien Pageot (co-encadrants: S. Operto & M. Vallée), Ph. D., Imagerie lithosphérique à partir
de données télésismiques par inversion des formes d’onde, University of Nice
2014 Clara Castellanos (encadrants: S. Gaffet & S. Operto), Ph. D., Méthodes de régularisation et
encodage de sources en inversion des formes d’ondes, University of Nice
soutenance Stephen Beller (encadrants: S. Operto, V. Monteiller, G. Nolet), Ph. D., Imagerie lithosphérique à
prévue fin partir de téléseismes parallelinversion des formes d’ondes complètes, University of Nice
2016
soutenance Wei Zhou (encadrants: R. Brossier, S. Operto, J. Virieux), Ph. D., Construction du modèle de
prévue fin vitesse à partir de données de sismique réflexion par inversion des formes d’ondes, Université Joseph
2016 Fourier
Stages post-doctoraux & ingénieurs de recherche
2001-2003
2005-2006
2005-2008
2010-2012
2013-...
2013-...
Jean-Xavier Dessa, post-doctorant.
Matthieu Delost, post-doctorant.
Florent Sourbier, Ingénieur de recherche - informatique scientifique.
Vincent Etienne, Ingénieur de recherche - informatique scientifique.
Laure Combe, Ingénieur de recherche - informatique scientifique.
Vadim Monteiller, Post-doctorant.
Stages master
2009 Amedi Blessing (M1, MathMods, ERASMUS Mundus)
2009 Jade Rachel Garcia (M1, MathMods, ERASMUS Mundus)
2008 Vincent Prieux (M2P, Géosciences, Exploration et Risques, Grenoble University)
Gestion de projets et financements
2013 – 2015 co-responsable scientifique (avec J. Virieux) du consortium pétrolier SEISCOPE (Phase II)
(http://seiscope2.osug.eu) (contrats industriels avec 12 sponsors)
2006 – 2011 co-responsable scientifique (avec J. Virieux) du consortium pétrolier SEISCOPE (Phase I)
(http://seiscope.oca.eu) financé par BP, CGGVeritas, ENI, ExxonMobil, PETROBRAS, SaudiAramco, Shell, Statoil, Total (contrats industriels)
2005 – 2009 responsable scientifique du projet ANR SEISCOPE (financement académique, AO ANR blanche),
450Keuros
2005-2006
2002-2005
2002
1998
DYETI, seismic tomography of the crust from wide-angle seismic data
ATIP "jeunes chercheurs"
OCEANS, processing of OBS data from the SFJ-OBS experiment.
ACI "Jeunes chercheurs"
Séminaires invités
31 mars 2015 SEG FWI Workshop: filling the gaps, Abu Dhabi, Keynote speaker, Efficient 3D frequency-domain
FWI of OBC data with sparse direct solver: a real data case study from the North Sea
22 mars 2015 Workshop Multi-scale waveform modeling & Inversion, KAUST UNiversity, Efficient 3D frequencydomain FWI of OBC data with sparse direct solver: a real data case study from the North
Sea
7 février 2014 Seismic imaging of the Earth interior by Full Waveform Inversion (FWI): from theory to practice.
S. Operto, Séminaire MAD (Mathématiques pour l’analyse de données), Observatoire de la Côte
d’Azur.
September Multiparameter full waveform inversion of multicomponent data: what have we learnt from the
2013 Valhall case study, R. Brossier, C. Castellanos, Y. Gholami, L. Métivier, S. Operto∗ V. Prieux, A.
Ribodetti and J. Virieux, Workshop of the Society of Exploration Geophysics, W11 Advances in
model building, imaging and FWI
August 2013, Multiparameter full waveform inversion with multicomponent data: some insights from the Valhall
keynote case study, S. Operto∗ , R. Brossier, C. Castellanos, Y. Gholami, L. Métivier, V. Prieux, A. Ribodetti
speaker and J. Virieux, 13th International Congress of the Brazilian Geophysical Society, Rio de Janeiro
Enseignement & Formations
2006 Summer school on global-offset seismic imaging - Lectures on finite-difference frequency-domain
seismic modeling and full waveform inversion (http://seiscope.oca.eu/spip.php?rubrique20)
December Training course on seismic modeling and full waveform inversion (30 hours) - PETROBRAS, Rio
2012 de Janeiro, Brazil
August 2013 Short course on full waveform inversion (one day) - Brazilian Geophysical Society (SBGf), Rio de
Janeiro, Brazil
Editorial service
2013–present "Associate Editor" pour la revue Geophysics
2009 "Guest Associate Editor" pour la revue Geophysics pour le numéro spécial "New advances on
seismic imaging and inversion"
Rapporteur Geophysics, Geophysical Prospecting, Geophysical Journal International, Journal of Geophysical
dans les Research, Computer & Geosciences, Geophysical Reseach Letters
revues
Participation à des jurys
2009
2009
2009
2010
2010
2010
(examinateur) R. E. Plessix, HDR., University of Grenoble
(rapporteur) R. Madec, Ph. D., University of Pau
(rapporteur) L. Métivier, Ph. D., University Paris 13
(examinateur) F. Bretaudeau, Ph. D., University of Nantes
(examinateur) H. Chauris, HDR., University of Paris 6 - Mines ParisTech
(membre invité) A. Rhomdane, Ph. D., University of Paris 6
2010
2011
2013
2014
(examinateur) E. Maufroy, University of Nice
(rapporteur) L. Guasch, Imperial College, London
(rapporteur) N. Belayouni, University of Paris 6 - Mines ParisTech
(rapporteur) D. Borisov, University of Paris 6 - IPGP
Organisation de workshop
2008 Workshop of the annual EAGE meeting, Roma - Full waveform inversion - current status and
perspectives (with Wim Mulder and René-Edouard Plessix)
2015 SEG FWI workshop: filling the gaps (member of the organization commitee)
Affiliation
EAGE, SEG.
Développements algorithmiques: modélisation et imagerie sismiques
Time-space and time-wavelet finite-difference time-domain algorithms.
Finite-difference frequency-domain algorithms.
Least-squares ray+Born migration algorithms.
Full waveform inversion codes.
Basic seismic data processing: filtering, deconvolution, spectral analysis.
Participation à des campagnes océanographiques
2002 campagne MEDISIS - Multichannel seismic (MCS) reflection experiment, Nil delta and Mediterannean ridge. Chef de mission: J. Mascle
2000 campagne SISTEUR - MCS and OBS refraction surveys, offshore Equador - Colombia subduction
margins. Co-chefs de mission: J.Y. Collot and Ph. Charvis
1999 campagne GEOLIG2D - OBS seismic refraction survey, offshore Ligurian basin. Chef de mission:
S. Operto
1995 campagne TAICRUST. MCS and OBS seismic surveys, offshore Taiwan. Co-chefs de mission: Yosio
Nakamura et T-K Wang
1995 campagne TICOSECT (UTIG-GEOMAR). OBS survey offshore Costa Rica. Co-chefs de mission :
Kirk McIntosh & Tom Shipley
1993 campagne REUSIS - MCS and OBS surveys, offshore Reunion island. Co-chefs de mission: Philippe
Charvis and Béatrice de Voogdt
1991 campagne MD/66 KeOBS. OBS survey over submarine Kerguelen plateau. Chef de mission:
Philippe Charvis
Production scientifique
62 articles dans des revues avec comité de lecture.
6 chapitres de livre.
86 actes de congrès.
h index: 24 (Isi Web of knowledge); 34 (Google scholar).
Publications
[1] P. Amestoy, R. Brossier, A. Buttari, J.-Y. L’Excellent, T. Mary, L. Métivier, A. Miniussi, and
S. Operto. Fast 3d frequency-domain full waveform inversion with a parallel Block Low-Rank
multifrontal direct solver: application to OBC data from the North Sea. Geophysics, in-press, 2016.
[2] S. Operto, A. Miniussi, R. Brossier, L. Combe, L. Métivier, V. Monteiller, A. Ribodetti, and
J. Virieux. Efficient 3-D frequency-domain mono-parameter full-waveform inversion of ocean-bottom
cable data: application to Valhall in the visco-acoustic vertical transverse isotropic approximation.
Geophysical Journal International, 202(2):1362–1391, 2015.
[3] W. Zhou, R. Brossier, S. Operto, and J. Virieux. Full waveform inversion of diving & reflected
waves for velocity model building with impedance inversion based on scale separation. Geophysical
Journal International, 202(3):1535–1554, 2015.
[4] C. Castellanos, L. Métivier, S. Operto, R. Brossier, and J. Virieux. Fast full waveform inversion with
source encoding and and second-order optimization methods. Geophysical Journal International,
200:718–742, 2015.
[5] L. Métivier, R. Brossier, S. Labbé, S. Operto, and J. Virieux. A robust absorbing layer for
anisotropic seismic wave modeling. Journal of Computational Physics, 279:218–240, 2014.
[6] S. Operto, R. Brossier, L. Combe, L. Métivier, A. Ribodetti, and J. Virieux. Computationallyefficient visco-acoustic finite-difference frequency-domain seismic modeling in vertical transversely
isotropic media with sparse direct solvers. Geophysics, 79(5):T257–T275, 2014.
[7] E. Mauffroy, S. Gaffet, S. Operto, Y. Guglielmi, and D. Boyer. Travel time inversion from ground
level to gallery: protocol for the characterization of P-wave signature in a fractured-porous Urgonian
platform at hectometric scale. Near surface geophysics, 12:697–708, 2014.
[8] R. Brossier, S. Operto, and J. Virieux. Velocity-model building from seismic reflection data by full
waveform inversion. Geophysical Prospecting, Accepted for publication, 2013.
[9] L. Métivier, F. Bretaudeau, R. Brossier, S. Operto, and J. Virieux. Full waveform inversion using
the truncated newton method: quantitative imaging of complex subsurface structures. Geophysical
Prospecting, 62(6):1353 – 1375, 2013.
[10] S. Operto, R. Brossier, Y. Gholami, L. Métivier, V. Prieux, A. Ribodetti, and J. Virieux. Multiparameter full waveform inversion with multi-component data: from theory to practice. The
Leading Edge, September, Full Waveform Inversion special issue:1040 – 1054, 2013.
[11] V. Prieux, R. Brossier, S. Operto, and J. Virieux. Multiparameter full waveform inversion of
multicomponent OBC data from valhall. Part 2: imaging compressional and shear-wave velocities.
Geophysical Journal International, 194(3):1665 – 1681, 2013.
[12] V. Prieux, R. Brossier, S. Operto, and J. Virieux. Multiparameter full waveform inversion of
multicomponent OBC data from valhall. Part 1: imaging compressional wavespeed, density and
attenuation. Geophysical Journal International, 194(3):1640–1664, 2013.
[13] L. Métivier, R. Brossier, J. Virieux, and S. Operto. Full waveform inversion and the truncated
Newton method. SIAM Journal on Scientific Computing, 35(2):B401 – B437, 2013.
[14] D. Pageot, S. Operto, M. Vallée, R. Brossier, and J. Virieux. A parametric analysis of twodimensional elastic full waveform inversion of teleseismic data for lithospheric imaging. Geophysical
Journal International, 193:1479–1505, 2013.
[15] Y. Gholami, R. Brossier, S. Operto, V. Prieux, A. Ribodetti, and Jean Virieux. Which parametrization for acoustic VTI full waveform inversion? - Part 2: application to Valhall. Geophysics,
78(2):R107–R124, 2013.
[16] Y. Gholami, R. Brossier, S. Operto, A. Ribodetti, and Jean Virieux. Which parametrization for
acoustic VTI full waveform inversion? - Part 1: sensitivity and trade-off analysis. Geophysics,
78(2):R81–R105, 2013.
[17] V. Prieux, G. Lambaré, S. Operto, and Jean Virieux. Building starting model for full waveform inversion from wide-aperture data by stereotomography. Geophysical Prospecting, 61(Issue
supplement: 60 year anniversary issue):109–137, 2012.
[18] V. Prieux, R. Brossier, Y. Gholami, S. Operto, J. Virieux, O.I. Barkved, and J.H. Kommedal. On
the footprint of anisotropy on isotropic full waveform inversion: the Valhall case study. Geophysical
Journal International, 187:1495–1515, 2011.
[19] A. Ribodetti, S. Operto, W. Agudelo, J.-Y. Collot, and J. Virieux. Joint ray+born least-squares
migration and simulated annealing optimization for high-resolution target-oriented quantitative
seismic imaging. Geophysics, 76(2):R23, 2011.
[20] A. Romdhane, G. Grandjean, R. Brossier, F. Réjiba, S. Operto, and J. Virieux. Shallow structures
characterization by 2D elastic waveform inversion. Geophysics, 76(3):R81, 2011.
[21] M. Malinowski, S. Operto, and A. Ribodetti. High-resolution seismic attenuation imaging from
wide-aperture onshore data by visco-acoustic frequency-domain full waveform inversion. Geophysical
Journal International, 186(3):1179–1204, 2011.
[22] F. Sourbier, A. Haiddar, L. Giraud, H. Ben-Hadj-Ali, S. Operto, and J. Virieux. Three-dimensional
parallel frequency-domain visco-acoustic wave modelling based on a hybrid direct/iterative solver.
Geophysical Prospecting, 59(5):834–856, 2011.
[23] H. Ben Hadj Ali, S. Operto, and J. Virieux. An efficient frequency-domain full waveform inversion
method using simultaneous encoded sources. Geophysics, 76(4):R109, 2011.
[24] Romain Brossier, Stéphane Operto, and Jean Virieux. Which data residual norm for robust elastic
frequency-domain full waveform inversion? Geophysics, 75(3):R37–R46, 2010.
[25] J. Virieux and S. Operto. An overview of full waveform inversion in exploration geophysics.
Geophysics, 74(6):WCC1–WCC26, 2009.
[26] J. Virieux, S. Operto, H. Ben Hadj Ali, R. Brossier, V. Etienne, F. Sourbier, L. Giraud, and
A. Haidar. Seismic wave modeling for seismic imaging. The Leading Edge, 28(5):538–544, 2009.
[27] Florent Sourbier, Stéphane Operto, Jean Virieux, Patrick Amestoy, and Jean-Yves L’Excellent.
FWT2D: A massively parallel program for frequency-domain full-waveform tomography of wideaperture seismic data–Part 2: Numerical examples and scalability analysis. Computers & Geosciences, 35(3):496 – 514, 2009.
[28] Florent Sourbier, Stéphane Operto, Jean Virieux, Patrick Amestoy, and Jean-Yves L’Excellent.
FWT2D: A massively parallel program for frequency-domain full-waveform tomography of wideaperture seismic data–Part 1: Algorithm. Computers & Geosciences, 35(3):487 – 495, 2009.
[29] Stefan Buske, Isabelle Lecomte, Tamas Nemeth, Stéphane Operto, and Valenti Sallares. Imaging
and inversion — introduction. Geophysics, 74(6):WCA1–WCA4, 2009.
[30] R. Brossier, S. Operto, and J. Virieux. Seismic imaging of complex onshore structures by 2D
elastic frequency-domain full-waveform inversion. Geophysics, 74(6):WCC105–WCC118, 2009.
[31] R. Brossier, S. Operto, and J. Virieux. Robust frequency-domain full-waveform inversion using the
l1 norm. Geophysical Research Letters, 36:L20310, 2009.
[32] S. Operto, J. Virieux, A. Ribodetti, and J. E. Anderson. Finite-difference frequency-domain
modeling of visco-acoustic wave propagation in two-dimensional TTI media. Geophysics, 74
(5):T75–T95, 2009.
[33] M. Malinowski and S. Operto. Quantitative imaging of the Permo-Mesozoic complex and its
basement by frequency domain waveform tomography of wide-aperture seismic data from the Polish
basin. Geophysical Prospecting, 56:805–825, 2008.
[34] R. Brossier, J. Virieux, and S. Operto. Parsimonious finite-volume frequency-domain method for
2-D P-SV-wave modelling. Geophysical Journal International, 175(2):541–559, 2008.
[35] H. Ben Hadj Ali, S. Operto, and J. Virieux. Velocity model building by 3D frequency-domain,
full-waveform inversion of wide-aperture seismic data. Geophysics, 73(5):VE101–VE117, 2008.
[36] S. Operto, J. Virieux, P. Amestoy, J-Y. L’Éxcellent, L. Giraud, and H. Ben Hadj Ali. 3D finitedifference frequency-domain modeling of visco-acoustic wave propagation using a massively parallel
direct solver: A feasibility study. Geophysics, 72(5):SM195–SM211, 2007.
[37] S. Operto, J. Virieux, J. X. Dessa, and G. Pascal. Crustal imaging from multifold ocean bottom
seismometers data by frequency-domain full-waveform tomography: application to the eastern
Nankai trough. Journal of Geophysical Research, 111(B09306):doi:10.1029/2005JB003835, 2006.
[38] C. Gélis, D. Leparoux, J. Virieux, A. Bitri, S. Operto, and G. Grandjean. Numerical modeling
of surface waves over shallow cavities. Journal of Environmental and Engineering Geophysics,
10:49–59, 2005.
[39] A. Ribodetti, S. Gaffet, S. Operto, J. Virieux, and G. Saracco. Asymptotic waveform inversion for
unbiased velocity and attenuation measurements: numerical tests and application for Vesuvius
lava sample analysis. Geophysical Journal International, 158:353–371, 2004.
[40] C. Ravaut, S. Operto, L. Improta, J. Virieux, A. Herrero, and P. dell’Aversana. Multi-scale imaging
of complex structures from multi-fold wide-aperture seismic data by frequency-domain full-wavefield
inversions: application to a thrust belt. Geophysical Journal International, 159:1032–1056, 2004.
[41] B. Hustedt, S. Operto, and J. Virieux. Mixed-grid and staggered-grid finite difference methods
for frequency domain acoustic wave modelling. Geophysical Journal International, 157:1269–1296,
2004.
[42] J. X. Dessa, S. Operto, S. Kodaira, A. Nakanishi, G. Pascal, J. Virieux, and Y. Kaneda. Multiscale
seismic imaging of the eastern nankai trough by full waveform inversion. Geophysical Research
Letters, 31(L18606):doi:10.1029/2004GL020453, 2004.
[43] J. X. Dessa, S. Operto, S. Kodaira, A. Nakanishi, G. Pascal, K. Uhira, and Y. Kaneda. Deep
seismic imaging of the eastern Nankai trough (Japan) from multifold ocean bottom seismometer
data by combined traveltime tomography and prestack depth migration. Journal of Geophysical
Research, 109(B02111):doi:10.1029/2003JB002689, 2004.
[44] S. Operto, C. Ravaut, L. Improta, J. Virieux, A. Herrero, and P. Dell’Aversana. Quantitative
imaging of complex structures from dense wide-aperture seismic data by multiscale traveltime and
waveform inversions: a case study. Geophysical Prospecting, 52:625–651, 2004.
[45] B. Hustedt, S. Operto, and J. Virieux. A multi-level direct-iterative solver for seismic wave
propagation: space and wavelet approaches. Geophysical Journal International, 155(12):953–980,
2003.
[46] I. Borissova, M. F. Coffin, P. Charvis, and S. Operto. Structure and development of a microcontinent:
Elan bank in the southern ’I’ndian ’O’cean. Geochemistry-Geophysics-Geosystems, 4:1–16, 2003.
[47] S. Operto, G. Lambaré, P. Podvin, and Ph. Thierry. 3-D ray-Born migration/inversion. part 2:
application to the SEG/EAGE overthrust experiment. Geophysics, 68(4):1357–1370, 2003.
[48] G. Lambaré, S. Operto, P. Podvin, Ph. Thierry, and M. Noble. 3-D ray+Born migration/inversion
- part 1: theory. Geophysics, 68:1348–1356, 2003.
[49] J. Y. Collot, P. Charvis, M. A. Gutscher, and S. Operto. Exploring the ecuador-colombia
active margin and interplate seismogenic zone. Eos, Transactions, American Geophysical Union,
148(83):185,189–190, 2002.
[50] S. Operto, J. Virieux, B. Hustedt, and F. Malfanti. Adaptative wavelet-based finite-difference
modelling of SH-wave propagation. Geophysical Journal International, 148:1–28, 2002.
[51] A. Ribodetti, H. P. Valero, S. Operto, J. Virieux, and D. Gibert. Geophysical tomography by
viscoacoustic asymptotic waveform inversion of ultrasonic laboratory data. IEEE Transactions on
instrumentation and measurement, 50(5):1404–1412, 2001.
[52] K. McIntosh, F. Akbar, C. Calderon, P. Stoffa, S. Operto, G. Christeson, Y. Nakamura, T. Shipley,
E. Flueh, A. Stavenhagen, and G. Leandro. Large aperture seismic imaging at a convergent margin:
Techniques and results from the costa rica seismogenic zone. Marine Geophysical Researches,
21:451–474, 2000.
[53] S. Operto, S. Xu, and G. Lambaré. Can we image quantitatively complex models with rays?
Geophysics, 65(4):1223–1238, 2000.
[54] A. Ribodetti, S. Operto, J. Virieux, G. Lambaré, H.-P. Valéro, and D. Gibert. Asymptotic
viscoacoustic diffraction tomography of ultrasonic laboratory data : a tool for rock properties
analysis. Geophysical Journal International, 140:324–340, 2000.
[55] J. Virieux, A. Ribodetti, S. Operto, and E. Augier. Imagerie sismique haute fréquence. Bulletin de
la Société géologique de France, 170(Numéro spécial: aux frontières des Géosciences):69–83, 1999.
[56] P. Thierry, S. Operto, and G. Lambaré. Fast 2D ray-Born inversion/migration in complex media.
Geophysics, 64(1):162–181, 1999.
[57] Ph. Charvis and S. Operto. Structure of the Cretaceous Kerguelen Volcanic Province (southern
Indian ocean) from wide-angle seismic data. Journal of Geodynamics, 28:51–71, 1999.
[58] M. Recq, J. Goslin, Ph. Charvis, and S. Operto. Small-scale crustal variability within an
intraplate structure: the Crozet bank (southern Indian ocean). Geophysical Journal International,
134:145–156, 1998.
[59] S. Operto and Ph.Charvis. Deep structure of the southern Kerguelen plateau (southern Indian
ocean) from ocean bottom seismometer wide-angle seismic data. Journal of Geophysical Research,
101:25077–25103, 1996.
[60] Ph. Charvis, M. Recq, S. Operto, and D. Brefort. Deep structure of the northern Kerguelen
plateau and hotspot-related activity. Geophysical Journal International, 122:899–924, 1995.
[61] S. Operto and Ph. Charvis. Kerguelen Plateau: a volcanic passive margin fragment? Geology,
23:137–140, 1995.
[62] Ph. Charvis, S. Operto, L. K. Konnecke, M. Recq, Y. Hello, F. Houdry, P. Lebellegard, R. Louat,
and F. Sage. Stucture profonde du domaine nord du plateau de Kerguelen (océan Indien austral):
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