Výsledky vyhledávání - "Serge Sambolian"

Akademický článek

Seismic Exploration of the Deep Structure and Seismogenic Faults in the Ligurian Sea by Joint Multi Channel and Ocean Bottom Seismic Acquisitions: Preliminary Results of the SEFASILS Cruise

Autor: Jean-Xavier Dessa, Marie-Odile Beslier, Laure Schenini, Nicolas Chamot-Rooke, Nicolà Corradi, Matthias Delescluse, Jacques Déverchère, Christophe Larroque, Serge Sambolian, Albane Canva, Stéphane Operto, Alessandra Ribodetti, Hans Agurto-Detzel, Cédric Bulois, Caroline Chalumeau, Laure Combe

Publikováno v: Geosciences, Vol 10, Iss 3, p 108 (2020)

The north Ligurian margin is a complex geological area in many ways. It has witnessed several phases of highly contrasting deformation styles, at both crustal scale and that of shallower cover tectonics, simultaneously or in quick succession, and wit

Externí odkaz: https://doaj.org/article/fd9e4e27fa21489c9cf9bd0333773e6a

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Consistent seismic event location and subsurface parameters inversion through slope tomography: a variable-projection approach

Autor: Alessandra Ribodetti, Stéphane Operto, Jean Virieux, Serge Sambolian

Publikováno v: Geophysical Journal International
Geophysical Journal International, Oxford University Press (OUP), 2021, 2020-11-18, 224 (3), pp.1956-1979. ⟨10.1093/gji/ggaa555⟩
Geophysical Journal International, 2021, 2020-11-18, 224 (3), pp.1956-1979. ⟨10.1093/gji/ggaa555⟩

SUMMARY We revisit the hypocentre–velocity problem, which is of interest in different fields as for example microseismics and seismology. We develop a formulation based on kinematic migration of two picked kinematic attributes in the 2-D case, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::411c0f82b19f933421b71d6778625679
https://doi.org/10.1093/gji/ggaa555

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Mitigating the ill-posedness of first-arrival traveltime tomography using slopes: application to the eastern Nankai Trough (Japan) OBS data set

Autor: Serge Sambolian, Stéphane Operto, Andrzej Górszczyk, Alessandra Ribodetti

Publikováno v: Geophysical Journal International
Geophysical Journal International, 2021, 227 (2), pp.898-921. ⟨10.1093/gji/ggab262⟩

SUMMARYFirst-arrival traveltime tomography is one of the most used velocity model building techniques especially in sparse wide-angle acquisitions for deep crustal seismic imaging cases. Relying on the inversion of a picked attribute, the absolute tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0884d4973bbcf9533eed98e7eaa42e65
https://hal.science/hal-03578625/file/ggab262.pdf

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Structural inversion of the North Ligurian margin: results from the SEFASILS experiment

Autor: Marie-Odile Beslier, Jean-Xavier Dessa, Matthias Delescluse, Alessandra Ribodetti, Nicolas Chamot-Rooke, Isabelle Thinon, Albane Canva, Laure Schenini, Jacques Déverchère, Serge Sambolian, Christophe Larroque

Publikováno v: EGU General Assembly 2021
EGU General Assembly 2021, Apr 2021, on-line, France. ⟨10.5194/egusphere-egu21-9759⟩

The north Ligurian margin is a stretched continental margin located at the junction of the Western Mediterranean Sea and the Alpine belt. This region underwent several phases of contrasting deformation styles. The Ligurian basin opened from late Olig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f25f81dcd8c6b17f10b830348bf62a6d
https://hal.archives-ouvertes.fr/hal-03435817

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Strain to Ground Motion Conversion of DAS Data for Earthquake Magnitude and Stress Drop Determination

Autor: Itzhak Lior, Serge Sambolian, Diane Rivet, Anthony Sladen, Jean-Paul Ampuero, Diego Mercerat

The use of Distributed Acoustic Sensing (DAS) presents unique advantages for earthquake monitoring compared with standard seismic networks: spatially dense measurements adapted for harsh environments and designed for remote operation. However, the ab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c859ef74467864e57266f9c5fe533d0
https://doi.org/10.5194/se-2020-219

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GOMCRUST - The crustal-scale extension of the 2004 BP velocity model for long-offset OBN acquisition setting

Autor: Serge Sambolian, Stéphane Operto, Andrzej Górszczyk

Publikováno v: 82nd EAGE Annual Conference & Exhibition.

Summary We present an extension of the 2004 BP velocity model which is suitable for the assessment of cutting-edge seismic imaging methods as FWI applied to ultra long-offset ocean-bottom node (OBN) acquisitions. The 2004 BP model is routinely utiliz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d58bb923c03939b9292ecfb590532df3
https://doi.org/10.3997/2214-4609.202112776

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Revisiting the hypocenter-velocity problem through a slope tomography inspiration

Autor: Jean Virieux, Serge Sambolian, Alessandra Ribodetti, Stéphane Operto

Publikováno v: SEG Technical Program Expanded Abstracts 2020
SEG Technical Program Expanded Abstracts 2020, Oct 2020, Virtual, United States. pp.2146-2150, ⟨10.1190/segam2020-3428084.1⟩

International audience; We revisit the hypocenter-velocity problem which is of interest in different fields as for example microseismics and seismology. We show how, through a formulation based on kinematic migration focusing using two picked kinemat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0f91f0ec453fa3c985b00724a189918
https://hal.archives-ouvertes.fr/hal-02972251

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The active North Ligurian domain: new geophysical insight from the SEFASILS cruise

Autor: Marie-Odile Beslier, Jean-Xavier Dessa, Jacques Déverchère, Matthias Delescluse, Nicola Corradi, Alessandra Ribodetti, Christophe Larroque, Albane Canva, Stéphane Operto, Mohamed Bachir Miguil, Serge Sambolian, Laure Schenini, Nicolas Chamot-Rooke

Publikováno v: EGU General Assembly 2020
EGU General Assembly 2020, May 2020, Vienna, Austria. ⟨10.5194/egusphere-egu2020-10047⟩

The first leg of the SEFASILS cruise took place in November 2018 onboard the RV Pourquoi-Pas ? Up-to-date multichannel and wide-angle seismic data were acquired offshore Monaco, from margin to basin, aiming at providing a renewed vision of the comple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79b84c863be818e830e19f7657779fb3
https://hal.archives-ouvertes.fr/hal-02525588

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Seismic exploration of the deep structure and seismogenic faults in the Ligurian Sea by joint MCS and OBS acquisition: preliminary results of the SEFASILS cruise

Autor: Jean-Xavier Dessa, Marie-Odile Beslier, Laure Schenini, Nicolas Chamot-Rooke, Nicola Corradi, Matthias Delescluse, Jacques Déverchère, Christophe Larroque, Mohamed Bachir Miguil, Stéphane Operto, Alessandra Ribodetti, Serge Sambolian, The Sefasils Shipboard Team (h. Agurto-Detzel, C. Bulois, C. Chalumeau, L. Combe, P. Guyavarch, D. Oregioni, C. Prunier, M. Roudaut, S. Trematerra)

Publikováno v: IMEKO TC-19 International Workshop on Metrology for the Sea (MetroSea 2019)
IMEKO TC-19 International Workshop on Metrology for the Sea (MetroSea 2019), Oct 2019, Genoa, Italy. p.70-75
HAL

International audience; The north Ligurian margin is a complex geological area on many accounts. It has witnessed several phases of highly contrasting deformation styles, at crustal scale and through shallow cover tectonics, simultaneously or in quic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a34a6c9059ff3d14ceea24387d61f250
https://hal.archives-ouvertes.fr/hal-02381960

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Mitigating the ill-posedness of first-arrival traveltime tomography using slopes: application to crustal imaging from OBS data

Autor: F Borhan Tavakoli, Jean Virieux, Alessandra Ribodetti, Andrzej Górszczyk, Stéphane Operto, Serge Sambolian

First-arrival traveltime tomography (FATT) has been one of the commanding tomographic approaches for long wavelength velocity model building. Nowadays, FATT models are often used as initial models ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03ab871ae1042910b1875d3956d2c7ea
https://doi.org/10.1002/essoar.10500808.1

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