Bjørn Ursin
Publikasjoner
2023
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Amundsen, Lasse;
Ursin, Bjørn.
(2023)
The viscoacoustic Green’s function for the Helmholtz equation in a velocity gradient interface model.
Geophysical Journal International
Vitenskapelig artikkel
2022
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Amundsen, Lasse;
Ursin, Bjørn.
(2022)
Solving the non-linear Riccati equation for the 1D plane-wave reflection response from a velocity gradient interface by a Heun to hypergeometric reduction.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn;
Landrø, Martin.
(2022)
The plane-wave primary reflection response from an impedance gradient interface.
Journal of the Acoustical Society of America
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn.
(2022)
Ultralow-frequency amplitude variation with angle inversion of plane-wave primary reflection seismograms.
Geophysics
Vitenskapelig artikkel
2021
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Ursin, Bjørn;
Porsani, Milton J..
(2021)
Signal time-frequency representation and decomposition using partial fractions.
Geophysical Journal International
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn.
(2021)
Pseudo-elastic PP and PSSP modeling in stratified media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Porsani, Milton J.
(2021)
Signal time-frequency representation and decomposition using partial fractions.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
Favretto-Cristini, Nathalie;
Cristini, Paul.
(2021)
Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media.
Geophysical Journal International
Vitenskapelig artikkel
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Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
V. de Hoop, Maarten.
(2021)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: dynamic ray tracing in ray-centred coordinates.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
V. de Hoop, Maarten.
(2021)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: transformation between Cartesian and ray-centred coordinates.
Geophysical Journal International
Vitenskapelig artikkel
2020
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Solymosi, Bence;
Favretto-Cristini, Nathalie;
Monteiller, Vadim;
Cristini, Paul;
Ursin, Bjørn;
Komatitsch, Dimitri.
(2020)
Seismic surveying and imaging at the laboratory scale: A framework to cross-validate experiments and simulations for a salt-body environment.
Geophysics
Vitenskapelig artikkel
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Jakobsen, Morten;
Pšenčík, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2020)
Transition operator approach to seismic full-waveform inversion in arbitrary anisotropic elastic media.
Communications in Computational Physics
Vitenskapelig artikkel
2019
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Porsani, Milton J.;
Ursin, Bjørn;
Silva, Michelângelo G..
(2019)
Signal decomposition and time-frequency representation using iterative singular spectrum analysis.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
de Hoop, Maarten.
(2019)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: dynamic ray tracing in Cartesian coordinates.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
de Hoop, Maarten V..
(2019)
Higher-order dynamic ray tracing in ray-centred coordinates.
SEG technical program expanded abstracts
Vitenskapelig artikkel
2018
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Iversen, Einar;
Ursin, Bjørn;
de Hoop, Maarten V..
(2018)
Higher-order extrapolation of traveltime and geometrical spreading in anisotropic heterogeneous media.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Solymosi, Bence;
Favretto-Cristini, Nathalie;
Monteiller, Vadim;
Komatitsch, Dimitri;
Cristini, Paul;
Arntsen, Børge.
(2018)
How to adapt numerical simulation of wave propagation and ultrasonic laboratory experiments to be comparable — A case study for a complex topographic model
.
Geophysics
Vitenskapelig artikkel
2017
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Mütschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2017)
On Processing and Inversion of Marine Magnetotelluric Data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2017/311)
Doktorgradsavhandling
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Favretto-Cristini, Nathalie;
Aizenberg, Arkady M;
Ursin, Bjørn;
Cristini, Paul;
Tantsereva, Anastasiya.
(2017)
Analysis of Wave Scattering from a Viscoelastic Layer with Complex Shape.
Journal of Computational Acoustics
Vitenskapelig artikkel
-
Jakobsen, Morten;
Psencik, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2017)
On the parameterization of seismic anisotropy in elastic waveform inversion: The HTI case.
EAGE extended abstracts
Sammendrag/abstract
-
Mütschard, Lutz;
Hokstad, Ketil;
Wiik, Torgeir;
Ursin, Bjørn.
(2017)
3D marine magnetotelluric inversion: A hybrid impedance and direct-field approach.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Carcione, José M.;
Gei, Davide.
(2017)
A physical solution for plane SH waves in anelastic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Jakobsen, Morten;
Psencik, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2017)
On the parametrization of seismic anisotropy for ray-Born inversion.
Seismic Waves in Complex 3-D Structures
Vitenskapelig artikkel
2016
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Carcione, José M.;
Ursin, Bjørn.
(2016)
On Fermat's principle and Snell's Law in lossy anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Silva, Michelângelo G.;
Porsani, Milton J.;
Ursin, Bjørn.
(2016)
Automatic data extrapolation to zero offset along local slope.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Reitan, Arne;
Weglein, Arthur B;
Ursin, Bjørn.
(2016)
On seismic deghosting using Green’s theorem.
Geophysics
Vitenskapelig artikkel
2015
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Silva, Michelângelo G.;
Porsani, Milton J.;
Ursin, Bjørn.
(2015)
Automatic data extrapolation to zero offset along local slope.
Geophysics
Vitenskapelig artikkel
-
Carcione, José M.;
Ursin, Bjørn.
(2015)
On Fermat's principle and Snell's law in lossy anisotropic media.
Geophysics
Vitenskapelig artikkel
-
V. de Hoop, Maarten;
Holman, Sean F.;
Iversen, Einar;
Lassas, Matti;
Ursin, Bjørn.
(2015)
Recovering the isometry type of a Riemannian manifold from local boundary diffraction travel times.
Journal des Mathématiques Pures et Appliquées
Vitenskapelig artikkel
-
Jakobsen, Morten;
Ursin, Bjørn.
(2015)
Full waveform inversion in the frequency domain using direct iterative T-matrix methods.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
2014
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Mutschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2014)
Estimation of seafloor electromagnetic receiver orientation.
Geophysics
Vitenskapelig artikkel
-
Favretto-Cristini, Nathalie;
Tantsereva, Anastasiya;
Cristini, Paul;
Ursin, Bjørn;
Komatitsch, Dimitri;
Aizenberg, Arkady M..
(2014)
Numerical modeling of zero-offset laboratory data in a strong topographic environment: results for a spectral-element method and a discretized Kirchhoff integral method.
Earthquake Science
Vitenskapelig artikkel
-
Ursin, Bjørn;
Silva, Michelangelo G.;
Porsani, Milton J..
(2014)
Signal and traveltime parameter estimation using singular value decomposition.
Geophysics
Vitenskapelig artikkel
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de Hoop, Maarten V.;
Holman, Sean F;
Iversen, Einar;
Lassas, Matti;
Ursin, Bjørn.
(2014)
Reconstruction of a conformally euclidean metric from local boundary diffraction travel times.
SIAM journal on computing (Print)
Vitenskapelig artikkel
-
Tantsereva, Anastasiya;
Ursin, Bjørn;
Favretto-Cristini, N.;
Cristini, P.;
Aizenberg, A. M..
(2014)
Numerical modeling of 3D zero-offset laboratory data by a discretized Kirchhoff integral method.
Geophysics
Vitenskapelig artikkel
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Ursin, Bjørn;
Favretto-Cristini, Nathalie;
Cristini, Paul.
(2014)
Fresnel volume and interface Fresnel zone for reflected and transmitted waves from a curved interface in anisotropic media.
Geophysics
Vitenskapelig artikkel
2013
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Wiik, Torgeir;
Hokstad, Ketil;
Ursin, Bjørn;
Mutschard, Lutz.
(2013)
Joint contrast source inversion of marine magnetotelluric and controlled-source electromagnetic data.
Geophysics
Vitenskapelig artikkel
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Arntsen, Børge;
Kritski, Alexander;
Ursin, Bjørn;
Amundsen, Lasse.
(2013)
Shot-profile true amplitude crosscorrelation imaging condition.
Geophysics
Vitenskapelig artikkel
-
Wiik, Torgeir;
Ursin, Bjørn.
(2013)
Modeling and Inversion of Marine Electromagnetic Data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2013:67)
Doktorgradsavhandling
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Aune, Erlend;
Eidsvik, Jo;
Ursin, Bjørn.
(2013)
Three-dimensional non-stationary and non-linear isotropic AVA inversion.
Geophysical Journal International
Vitenskapelig artikkel
-
Wiik, Torgeir;
Ursin, Bjørn;
Hokstad, Ketil.
(2013)
2.5D EM modelling in TIV conductive media and the effect of anisotropy in normalized amplitude responses.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Porsani, MJ;
Ursin, Bjørn;
Silva, MG;
Melo, PEM.
(2013)
Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement.
Geophysical Prospecting
Vitenskapelig artikkel
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Porsani, MJ;
Ursin, Bjørn;
Silva, MG.
(2013)
Dynamic estimation of reflectivity by minimum-delay seismic trace decomposition.
Geophysics
Vitenskapelig artikkel
2012
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Cristini, P.;
Favretto-Cristini, N.;
Tantsereva, Anastasiya;
Ursin, Bjørn;
Aizenberg, A;
Komatitsch, Dimitri.
(2012)
Laboratory benchmarks vs. Synthetic modeling of seismic wave propagation in complex environments (BENCHIE Project): Results for a spectral-element Method and the Tip Wave Superposition Method.
Journal of the Acoustical Society of America
Vitenskapelig artikkel
-
Abbad, Brahim;
Ursin, Bjørn.
(2012)
High-resolution bootstrapped differential semblance.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Iversen, Einar;
Tygel, M;
Ursin, Bjørn;
de Hoop, MV.
(2012)
Kinematic time migration and demigration of reflections in pre-stack seismic data.
Geophysical Journal International
Vitenskapelig artikkel
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Ursin, Bjørn;
Pedersen, Ørjan;
Arntsen, Børge.
(2012)
Flux-normalized wavefield decomposition and migration of seismic data.
Geophysics
Vitenskapelig artikkel
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Tygel, M;
Ursin, Bjørn;
Iversen, Einar;
de Hoop, MV.
(2012)
Estimation of geological dip and reflector curvature from zero-offset seismic reflections in heterogeneous anisotropic media.
Studia Geophysica et Geodaetica
Vitenskapelig artikkel
-
Pestana, RC;
Ursin, Bjørn;
Stoffa, PL.
(2012)
Rapid expansion and pseudo spectral implementation for reverse time migration in VTI media.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
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Tygel, Martin;
Ursin, Bjørn;
Iversen, Einar;
Hoop, Maarten V. de.
(2012)
Estimation of geological dip and curvature from time-migrated zero-offset reflections in heterogeneous anisotropic media.
Geophysical Prospecting
Vitenskapelig artikkel
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Mutschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2012)
Estimation of Seafloor Electromagnetic Receiver Orientation.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2011
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Abbad, Brahim;
Ursin, Bjørn;
Porsani, Milton J..
(2011)
A fast, modified parabolic Radon transform.
Geophysics
Vitenskapelig artikkel
-
Malcolm, AE;
de Hoop, Martijn;
Ursin, Bjørn.
(2011)
Recursive imaging with multiply scattered waves using partial image regularization: A North Sea case study.
Geophysics
Vitenskapelig artikkel
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2011)
AVA inversion of the top Utsira Sand reflection at the Sleipner field.
Geophysics
Vitenskapelig artikkel
-
Abbad, Brahim;
Ursin, Bjørn.
(2011)
Nonhyperbolic velocity analysis and improved demultiple for seismic data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2011:300)
Doktorgradsavhandling
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Pestana, Reynam C.;
Ursin, Bjørn;
Stoffa, Paul L..
(2011)
Seperate P- and SV-wave equations for VTI media.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Jakobsen, Morten;
Ursin, Bjørn.
(2011)
T-matrix Approach to the Nonlinear Waveform Inversion Problem in 4D Seismics.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wiik, Torgeir;
Løseth, Lars Ole;
Ursin, Bjørn;
Hokstad, Ketil.
(2011)
TIV contrast source inversion of mCSEM data.
Geophysics
Vitenskapelig artikkel
2010
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Tyapkin, Y;
Ursin, Bjørn;
Perroud, H;
Silinska, O;
Tiapkina, Olena.
(2010)
Zero- and first-order approximations for least-squares estimation of seismic signal with coherent and random noise.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Nag, Steinar;
Alerini, Mathias;
Ursin, Bjørn.
(2010)
PP/PS anisotropic stereotomography.
Geophysical Journal International
Vitenskapelig artikkel
-
Pedersen, Ørjan;
Brandsberg-Dahl, Sverre;
Ursin, Bjørn.
(2010)
Seismic imaging using lateral adaptive windows.
Geophysics
Vitenskapelig artikkel
-
Wang, Shen;
de Hoop, Maarten V.;
Ursin, Bjørn.
(2010)
Illumination analysis of wave-equation imaging with curvelets.
Inverse Problems
Vitenskapelig artikkel
-
Porsani, MJ;
Silva, MG;
Melo, PEM;
Ursin, Bjørn.
(2010)
SVD filtering applied to ground-roll attenuation.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Malcolm, A.;
Ursin, Bjørn;
de Hoop, M.V..
(2010)
Imaging with Doubly-scattered Waves - A North Sea Case Study.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Pedersen, Ørjan;
Ursin, Bjørn.
(2010)
One-way wave-equation migration for wide-angle propagation in anisotropic media.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2010:140)
Doktorgradsavhandling
-
Pedersen, Ørjan;
Ursin, Bjørn;
Helgesen, Hans Kristian.
(2010)
One-way wave-equation migration of compressional and converted waves in a VTI medium.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Westerdahl, H.;
Thompson, M.;
Haugen, Jon Andre;
Reitan, Arne;
Landrø, Martin.
(2010)
Multicomponent ocean bottom and vertical cable seismic acquisition for wavefield reconstruction.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Westerdahl, Harald;
Thompson, Mark;
Haugen, Jon Andre;
Reitan, Arne;
Landrø, Martin.
(2010)
Multicomponent OBS and VC acquisition for wavefield reconstruction.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
2009
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2009)
Non-linear Bayesian inversion of seismic reflection amplitudes.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, A.;
Ursin, Bjørn.
(2009)
Wave-equation Depth Migration in Elastic Media - New Results.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wiik, Torgeir;
Ursin, Bjørn;
Hokstad, K.
(2009)
2.5D Frequency Domain EM Modeling in Conductive TIV Media.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A;
Helle, H.B.;
Klem-Musatov, K.D.;
Pajchel, J.;
Ursin, Bjørn.
(2009)
Our Experiences of 3D Synthetic Seismic Modeling with Tip-wave Superposition Method and Effective Coefficients.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Alerini, Mathias;
Ursin, Bjørn.
(2009)
Adaptive focusing window for seismic angle migration.
Geophysics
Vitenskapelig artikkel
-
Vivas, FA;
Pestana, RC;
Ursin, Bjørn.
(2009)
A new stabilized least-squares imaging condition.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2009)
Improved geometric-spreading approximation in layered transversely isotropic media.
Geophysics
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Tsvankin, I;
Aizenberg, A;
Ursin, Bjørn.
(2009)
Effective reflection coefficients for curved interfaces in transversely isotropic media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin;
Iversen, Einar.
(2009)
SS-traveltime parameters from PP and PS reflections.
Geophysics
Vitenskapelig artikkel
-
deplante, christian;
Ursin, Bjørn.
(2009)
Frequency attenuation and resolution of seismic data receive the full treatment at research workshop.
First Break
Vitenskapelig artikkel
-
Landrø, Martin;
Holt, Rune Martin;
Ursin, Bjørn.
(2009)
ROSE - Rock Physics and Seismic Reserach at the Norwegian University of Science and Technology.
Exploration & Production. The Oil and Gas Review
Fagartikkel
-
Abbad, Brahim;
Ursin, Bjørn;
Rappin, D.
(2009)
Automatic nonhyperbolic velocity analysis.
Geophysics
Vitenskapelig artikkel
-
Malcolm, AE;
Ursin, Bjørn;
de Hoop, Martijn.
(2009)
Seismic imaging and illumination with internal multiples.
Geophysical Journal International
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Aizenberg, Arkady M.;
Ursin, Bjørn.
(2009)
Tip-wave superposition method with effective reflection and transmission coefficients: A new 3D Kirchhoff-based approach to synthetic seismic modeling.
The Leading Edge
Vitenskapelig artikkel
2008
-
Ayzenberg, Milana;
Ursin, Bjørn.
(2008)
Three-Dimensional Seismic Diffraction Modeling.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2008:304)
Doktorgradsavhandling
-
Alerini, M.;
Ursin, Bjørn.
(2008)
Adaptive Limitation of the Migration Operator Aperture.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2008)
Improved Geometrical Spreading Approximation in Layered Transversely Isotropic Media (P072).
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Abbad, Brahim;
Rappin, D..
(2008)
Automatic nonhyperbolic velocity analysis. Expanded abstracts, 3058-3062.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Tsvankin, Ilya;
Aizenberg, A. M.;
Ursin, Bjørn.
(2008)
Effective Reflection Coefficients for Curved Interfaces in TI Media.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A. M.;
Helle, Hans Bjarne;
Klem-Musatov, Kamill D.;
Pajchel, J;
Ursin, Bjørn.
(2008)
3D Modeling of Acoustic Green's Function in Layered Media with Diffracting Edges.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Malcolm, A.;
Ursin, Bjørn;
de Hoop, M.V..
(2008)
Subsalt imaging with internal multiples. Expanded abstracts, 2461-2465.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, A.;
Dischler, E.Ø.;
Ursin, Bjørn.
(2008)
Wave equation depth migration - a new method of solution. Expanded abstracts, 2252-2256.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, Arne;
Dischler, Eirik;
Ursin, Bjørn.
(2008)
Wave equation depth migration—a new method of solution.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Amundsen, Lasse;
Reitan, Arne;
Reitan, Arne;
Arntsen, Børge;
Ursin, Bjørn.
(2008)
Elastic nonlinear amplitude versus angle inversion and data-driven depth imaging in stratified media derived from inverse scattering approximations.
Inverse Problems
Vitenskapelig artikkel
-
Rabben, Tor Erik;
Tjelmeland, Håkon;
Ursin, Bjørn.
(2008)
Non-linear Bayesian joint inversion of seismic reflection coefficients.
Geophysical Journal International
Vitenskapelig artikkel
2007
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
The Reflection and Transmission Responces of a Periodically Layered Medium.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
The Geometrical Spreading in VTI Medium Revisited.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Tygel, M..
(2007)
Zero-offset seismic amplitude decomposition and migration.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Abbad, Brahim;
Ursin, Bjørn;
Rappin, D..
(2007)
Automatic nonhyperbolic velocity analysis in VTI media.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2007)
Nonlinear least squares inversion of reflection coefficients using Bayesian regularization.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hoang, P.;
Avseth, P.A.;
Ursin, Bjørn;
van Wijngaarden, A.J..
(2007)
Rock Physics Depth Trend Analysis Based on Stacking Velocity.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Løseth, L.O.;
Ursin, Bjørn;
Amundsen, L..
(2007)
On the Effects of Anisotropy in Marine CSEM.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Alerini, M.;
Riede, M.;
Ursin, Bjørn.
(2007)
Limited-Aperture Migration by Sterotomography Output.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A.;
Helle, H.;
Klem-Musatov, K.;
Pajchel, J.;
Ursin, Bjørn.
(2007)
3-D Acoustic Green's Function Modeling in Multilayered Overburden.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Pedersen, Ørjan;
Brandsberg-Dahl, Sverre;
Ursin, Bjørn.
(2007)
Seismic Imaging Using Lateral Adaptive Windows.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tyapkin, Y.;
Ursin, Bjørn;
Roganov, Y.;
Nekrasov, I.;
Shumlyanskaya, G..
(2007)
Least-Squares Signal Estimation with Complicated Mathematical Models of Seismic Data.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
Equivalent time-average and effective medium for periodic layers.
Geophysical Prospecting
Vitenskapelig artikkel
-
Pedersen, Ørjan;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Wide-angle phase-slowness approximations in VTI media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin.
(2007)
Zero-offset seismic amplitude decomposition and migration.
Geophysics
Vitenskapelig artikkel
-
Haugen, Jon Andre;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Sensitivity of Dix-type inverse formulae.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Carcione, JM;
Ursin, Bjørn;
Nordskag, Janniche Iren.
(2007)
Cross-property relations between electrical conductivity and the seismic velocity of rocks.
Geophysics
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Aizenberg, Arkady M.;
Helle, Hans B.;
Klem-Musatov, Kamill D.;
Pajchel, Jan;
Ursin, Bjørn.
(2007)
3D diffraction modeling of singly scattered acoustic wavefields based on the combination of surface integral propagators and transmission operators.
Geophysics
Vitenskapelig artikkel
-
Løseth, Lars Ole;
Ursin, Bjørn.
(2007)
Electromagnetic fields in planarly layered anisotropic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
Estimation of layer parameters for linear P- and S-wave velocity functions.
Geophysics
Vitenskapelig artikkel
-
Tygel, Martin;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Convergence of traveltime power series for a layered VTI medium.
Geophysics
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn.
(2007)
Direct multichannel predictive deconvolution.
Geophysics
Vitenskapelig artikkel
2006
-
Nag, Steinar;
Alerini, M.;
Duveneck, E.;
Ursin, Bjørn.
(2006)
2D stereotomography for anisotropic media.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tyapkin, Yuriy;
Ursin, Bjørn;
Roganov, Y.;
Nekrasov, I..
(2006)
Optimum seismic signal estimation with complicated models of coherent and random noise.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Pedersen, Ørjan;
Ursin, Bjørn;
Stovas, Alexey.
(2006)
Wide-Angle Phase-Slowness Approximations in VTI Media (P186).
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Aizenberg, A.M.;
Ayzenberg, Milana;
Helle, H.B.;
Klem-Musatov, K.D.;
Pajchel, J.;
Ursin, Bjørn.
(2006)
3D seismic diffraction modelling in multilayered media in terms of surface integrals.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2006)
Traveltime approximations for a layered transversely isotropic medium.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Løseth, Lars Ole;
Mittet, Rune;
Ellingsrud, Svein;
Ursin, Bjørn.
(2006)
Decomposition of electromagnetic fields into upgoing and downgoing components.
Geophysics
Vitenskapelig artikkel
-
Løseth, Lars Ole;
Pedersen, Hans Magne;
Ursin, Bjørn;
Amundsen, Lasse;
Ellingsrud, Svein.
(2006)
Low-frequency electromagnetic fields in applied geophysics: Waves or diffusion?.
Geophysics
Vitenskapelig artikkel
-
Tygel, M.;
Ursin, Bjørn.
(2006)
Divergent and asymptotic nature of the time-offset Taner-Koehler series in reflection seismics - Discussion.
Geophysics
Leder
-
Stovas, Alexey;
Ursin, Bjørn.
(2006)
Parameter estimation for a linear velocity function.
Russian Geology and Geophysics
Vitenskapelig artikkel
2005
-
Stovas, Alexey;
Ursin, Bjørn.
(2005)
The reflection and transmission responses of a periodic layered medium.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tyapkin, Yuriy;
Ursin, Bjørn.
(2005)
Optimum stacking of seismic records with irregular noise.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2005)
Generalized Dix equations for layered transversely isotropic medium.
Geophysics
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn;
de Hoop, Maarten V..
(2005)
Depth-consistent reflection tomography using PP and PS seismic data.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Hoop, Maarten V.;
Foss, Stig-Kyrre;
Brandsberg-Dahl, Sverre.
(2005)
Seismic angle tomography.
The Leading Edge
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Hoop, Maarten V.;
Brandsberg-Dahl, Sverre;
Sollid, Anders.
(2005)
Seismic angle migration.
The Leading Edge
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
de Hoop, Maarten V.;
Ursin, Bjørn.
(2005)
Linearized 2.5-dimensional parameter imaging inversion in anisotropic elastic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Toverud, T;
Ursin, Bjørn.
(2005)
Comparison of seismic attenuation models using zero-offset vertical seismic profiling (VSP) data.
Geophysics
Vitenskapelig artikkel
2004
-
Ursin, Bjørn.
(2004)
Parameter inversion and angle migration in anisotropic elastic media.
Geophysics
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn;
Sollid, Anders.
(2004)
A practical approach to PP seismic angle tomography.
Geophysical Prospecting
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2004)
New travel-time approximations for a transversely isotropic medium.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn.
(2004)
2.5D modelling, inversion and angle migration in anisotropic elastic media.
Geophysical Prospecting
Vitenskapelig artikkel
2003
-
Stovas, Alexey;
Ursin, Bjørn.
(2003)
Reflection and transmission responses of layered transversely isotropic visco-elastic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Hokstad, Ketil.
(2003)
Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis.
Geophysics
Vitenskapelig artikkel
-
Brandsberg-Dahl, Sverre;
Ursin, Bjørn;
de Hoop, M.V..
(2003)
Seismic velocity analysis in the scattering/azimuth domain.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Bauer, Christian;
Zhao, H.;
Fichler, Christine.
(2003)
Combined seismic inversion and gravity modelling of a shallow anomaly in the southern Barents Sea.
Geophysics
Vitenskapelig artikkel
-
Brandsberg-Dahl, Sverre;
de Hoop, M.V.;
Ursin, Bjørn.
(2003)
Focusing in dip and AVA compensation on scattering angle/azimuth common image gathers.
Geophysics
Vitenskapelig artikkel
-
Sollid, A.;
Ursin, Bjørn.
(2003)
Scattering-angle migration of OBS data in weakly anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Hokstad, K.
(2003)
Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis.
Geophysics
Vitenskapelig artikkel
-
Sollid, Anders;
Ursin, Bjørn.
(2003)
Scattering-angle migration of ocean-bottom seismic data in weakly anisotropic media.
Geophysics
Vitenskapelig artikkel
2002
-
Eide, Alfhild Lien;
Omre, Henning;
Ursin, Bjørn.
(2002)
Prediction of reservoir variables based on seismic data and well observations.
Journal of the American Statistical Association
Vitenskapelig artikkel
-
Ettrich, N.;
Sollid, A.;
Ursin, Bjørn.
(2002)
Out-of-plane geometrical spreading in anisotropic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Pham, Nam H.;
Carcione, José M.;
Helle, Hans B.;
Ursin, Bjørn.
(2002)
Wave velocities and attenuation of shaley sandstones as a function of pore pressure and partial saturation.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Toverud, Tommy.
(2002)
Comparison of seismic dispersion and attenuation models.
Studia Geophysica et Geodaetica
Vitenskapelig artikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2002)
Reflection and transmission responses of a layered isotropic visco-elastic medium.
Geophysics
Vitenskapelig artikkel
2001
-
Toverud, Tommy;
Dimri, V.P.;
Ursin, Bjørn.
(2001)
Comparison of deconvolution methods for scaling reflectivity.
Journal of Geophysics
Vitenskapelig artikkel
-
Helle, Hans B.;
Bhatt, Alpana;
Ursin, Bjørn.
(2001)
Porosity and permeability prediction from wireline logs using artificial neural networks: a North Sea case study.
Geophysical Prospecting
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2001)
Second-order approximations of the reflection and transmission coefficients between two visco-elastic isotropic media.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Schleicher, J.;
Tygel, Martin;
Bleistein, N.;
Ursin, Bjørn.
(2001)
The Kirchhoff-Helmholtz integral for anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
2000
-
Porsani, Milton J.;
Ursin, Bjørn.
(2000)
Mixed-phase deconvolution and wavelet estimation.
The Leading Edge
Vitenskapelig artikkel
-
Causse, Emmanuel;
Ursin, Bjørn.
(2000)
Viscoacoustic reverse-time migration.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Porsani, Milton.
(2000)
Estimation of an optimal mixed-phase inverse filter.
Geophysical Prospecting
Vitenskapelig artikkel
1999
-
Tygel, Martin;
Ursin, Bjørn.
(1999)
Weak-contrast edge and vertex diffractions in anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
-
Ekren, Bjørn Olav;
Ursin, Bjørn.
(1999)
True-amplitude frequency-wavenumber constant-offset migration.
Geophysics
Vitenskapelig artikkel
-
Causse, Emmanuel;
Ursin, Bjørn.
(1999)
Asymptotic error analysis of constant-velocity viscoacoustic migration.
Geophysics
Vitenskapelig artikkel
-
Causse, Emmanuel;
Mittet, Rune;
Ursin, Bjørn.
(1999)
Preconditioning of full-waveform inversion in viscoacoustic media.
Geophysics
Vitenskapelig artikkel
-
Lu, Guochun;
Ursin, Bjørn;
Lutro, Jan.
(1999)
Model-based removal of water-layer multiple reflections.
Geophysics
Vitenskapelig artikkel
1998
-
Bakke, Nils E.;
Ursin, Bjørn.
(1998)
Thin-bed AVO effects.
Geophysical Prospecting
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn.
(1998)
Mixed-phase deconvolution.
Geophysics
Vitenskapelig artikkel
1997
-
Eide, Alfhild Lien;
Omre, Henning;
Ursin, Bjørn.
(1997)
Stochastic reservoir characterization conditioned on seismic data.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Novais, Amélia;
Santos, Lucio T.;
Tygel, Martin;
Ursin, Bjørn.
(1997)
A unified Born-Kirchhoff representation for acoustic media.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin.
(1997)
Reciprocal volume and surface scattering integrals for anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
-
Ursin, Bjørn.
(1997)
Methods for estimating the seismic reflection response.
Geophysics
Vitenskapelig artikkel
1996
-
Haugen, Geir U.;
Ursin, Bjørn.
(1996)
Elastic properties of rocks with fracture-induced anisotropy.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Haugen, Geir U..
(1996)
Weak-contrast approximation of the elastic scattering matrix in anisotropic media.
Pure and Applied Geophysics (PAGEOPH)
Vitenskapelig artikkel
-
Santos, L.T. dos;
Ursin, Bjørn;
Tygel, Martin.
(1996)
Razlo#vzenie volnovogo polja v rjad v slu#vcae stratificirovannogo fljuida.
Geologiâ i geofizika (Soviet Geology and Geophysics)
Vitenskapelig artikkel
-
Ursin, Bjørn;
Haugen, Geir U..
(1996)
Weak-contrast approximation of the elastic scattering matrix in anisotropic media.
Pure and Applied Geophysics (PAGEOPH)
Vitenskapelig artikkel
-
Shapiro, Sergei A.;
Hubral, Peter;
Ursin, Bjørn.
(1996)
Reflectivity/transmissivity for one-dimensional inhomogeneous random elastic media : dynamic-equivalent-medium approach.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tjåland, Egil.
(1996)
The information content of the elastic reflection matrix.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Matos Neto, Joao B.;
Porsani, Milton J..
(1996)
Seismic reflection estimation with coloured noise.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Ekren, Bjørn Olav;
Tjåland, Egil.
(1996)
Linearized elastic parameter sections.
Geophysical Prospecting
Vitenskapelig artikkel
1995
-
Ursin, Bjørn;
Ekren, Bjørn Olav.
(1995)
Robust AVO analysis.
Geophysics
Vitenskapelig artikkel
-
Pestana, R.;
Chaves, R.D.;
Ursin, Bjørn.
(1995)
Migra#,c#~ao de ondas planas em meios lateralmente heterog#^eneso.
Revista Brasileira de Geofisica
Vitenskapelig artikkel
1993
-
Ursin, Bjørn;
Tjåland, Egil.
(1993)
The accuracy of linearized elastic parameter estimation.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Arntsen, Børge;
Ursin, Bjørn.
(1993)
Estimation of reflection coefficients from zero-offset field data.
Geophysics
Vitenskapelig artikkel
1992
-
Ursin, Bjørn;
Dahl, Terje.
(1992)
Seismic reflection amplitudes.
Geophysical Prospecting
Vitenskapelig artikkel
-
Dahl, Terje;
Ursin, Bjørn.
(1992)
Non-linear AVO inversion for a stack of anelastic layers.
Geophysical Prospecting
Vitenskapelig artikkel
1988
-
Landrø, Martin;
Ursin, Bjørn.
(1988)
Detection of zero-offset seismic reflections.
First Break
Vitenskapelig artikkel
1985
-
Arntsen, Børge;
Ursin, Bjørn.
(1985)
Ccomputation of zero-offset vertical . seismic profiles including geometrical spreading and absorption.
Geophysical Prospecting
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Amundsen, Lasse;
Ursin, Bjørn.
(2023)
The viscoacoustic Green’s function for the Helmholtz equation in a velocity gradient interface model.
Geophysical Journal International
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn.
(2022)
Solving the non-linear Riccati equation for the 1D plane-wave reflection response from a velocity gradient interface by a Heun to hypergeometric reduction.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn;
Landrø, Martin.
(2022)
The plane-wave primary reflection response from an impedance gradient interface.
Journal of the Acoustical Society of America
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn.
(2022)
Ultralow-frequency amplitude variation with angle inversion of plane-wave primary reflection seismograms.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Porsani, Milton J..
(2021)
Signal time-frequency representation and decomposition using partial fractions.
Geophysical Journal International
Vitenskapelig artikkel
-
Amundsen, Lasse;
Ursin, Bjørn.
(2021)
Pseudo-elastic PP and PSSP modeling in stratified media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Porsani, Milton J.
(2021)
Signal time-frequency representation and decomposition using partial fractions.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
Favretto-Cristini, Nathalie;
Cristini, Paul.
(2021)
Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
V. de Hoop, Maarten.
(2021)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: dynamic ray tracing in ray-centred coordinates.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
V. de Hoop, Maarten.
(2021)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: transformation between Cartesian and ray-centred coordinates.
Geophysical Journal International
Vitenskapelig artikkel
-
Solymosi, Bence;
Favretto-Cristini, Nathalie;
Monteiller, Vadim;
Cristini, Paul;
Ursin, Bjørn;
Komatitsch, Dimitri.
(2020)
Seismic surveying and imaging at the laboratory scale: A framework to cross-validate experiments and simulations for a salt-body environment.
Geophysics
Vitenskapelig artikkel
-
Jakobsen, Morten;
Pšenčík, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2020)
Transition operator approach to seismic full-waveform inversion in arbitrary anisotropic elastic media.
Communications in Computational Physics
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn;
Silva, Michelângelo G..
(2019)
Signal decomposition and time-frequency representation using iterative singular spectrum analysis.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
de Hoop, Maarten.
(2019)
Higher-order Hamilton–Jacobi perturbation theory for anisotropic heterogeneous media: dynamic ray tracing in Cartesian coordinates.
Geophysical Journal International
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
Saksala, Teemu;
Ilmavirta, Joonas;
de Hoop, Maarten V..
(2019)
Higher-order dynamic ray tracing in ray-centred coordinates.
SEG technical program expanded abstracts
Vitenskapelig artikkel
-
Iversen, Einar;
Ursin, Bjørn;
de Hoop, Maarten V..
(2018)
Higher-order extrapolation of traveltime and geometrical spreading in anisotropic heterogeneous media.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Solymosi, Bence;
Favretto-Cristini, Nathalie;
Monteiller, Vadim;
Komatitsch, Dimitri;
Cristini, Paul;
Arntsen, Børge.
(2018)
How to adapt numerical simulation of wave propagation and ultrasonic laboratory experiments to be comparable — A case study for a complex topographic model
.
Geophysics
Vitenskapelig artikkel
-
Favretto-Cristini, Nathalie;
Aizenberg, Arkady M;
Ursin, Bjørn;
Cristini, Paul;
Tantsereva, Anastasiya.
(2017)
Analysis of Wave Scattering from a Viscoelastic Layer with Complex Shape.
Journal of Computational Acoustics
Vitenskapelig artikkel
-
Jakobsen, Morten;
Psencik, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2017)
On the parameterization of seismic anisotropy in elastic waveform inversion: The HTI case.
EAGE extended abstracts
Sammendrag/abstract
-
Mütschard, Lutz;
Hokstad, Ketil;
Wiik, Torgeir;
Ursin, Bjørn.
(2017)
3D marine magnetotelluric inversion: A hybrid impedance and direct-field approach.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Carcione, José M.;
Gei, Davide.
(2017)
A physical solution for plane SH waves in anelastic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Jakobsen, Morten;
Psencik, Ivan;
Iversen, Einar;
Ursin, Bjørn.
(2017)
On the parametrization of seismic anisotropy for ray-Born inversion.
Seismic Waves in Complex 3-D Structures
Vitenskapelig artikkel
-
Carcione, José M.;
Ursin, Bjørn.
(2016)
On Fermat's principle and Snell's Law in lossy anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Silva, Michelângelo G.;
Porsani, Milton J.;
Ursin, Bjørn.
(2016)
Automatic data extrapolation to zero offset along local slope.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Reitan, Arne;
Weglein, Arthur B;
Ursin, Bjørn.
(2016)
On seismic deghosting using Green’s theorem.
Geophysics
Vitenskapelig artikkel
-
Silva, Michelângelo G.;
Porsani, Milton J.;
Ursin, Bjørn.
(2015)
Automatic data extrapolation to zero offset along local slope.
Geophysics
Vitenskapelig artikkel
-
Carcione, José M.;
Ursin, Bjørn.
(2015)
On Fermat's principle and Snell's law in lossy anisotropic media.
Geophysics
Vitenskapelig artikkel
-
V. de Hoop, Maarten;
Holman, Sean F.;
Iversen, Einar;
Lassas, Matti;
Ursin, Bjørn.
(2015)
Recovering the isometry type of a Riemannian manifold from local boundary diffraction travel times.
Journal des Mathématiques Pures et Appliquées
Vitenskapelig artikkel
-
Jakobsen, Morten;
Ursin, Bjørn.
(2015)
Full waveform inversion in the frequency domain using direct iterative T-matrix methods.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Mutschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2014)
Estimation of seafloor electromagnetic receiver orientation.
Geophysics
Vitenskapelig artikkel
-
Favretto-Cristini, Nathalie;
Tantsereva, Anastasiya;
Cristini, Paul;
Ursin, Bjørn;
Komatitsch, Dimitri;
Aizenberg, Arkady M..
(2014)
Numerical modeling of zero-offset laboratory data in a strong topographic environment: results for a spectral-element method and a discretized Kirchhoff integral method.
Earthquake Science
Vitenskapelig artikkel
-
Ursin, Bjørn;
Silva, Michelangelo G.;
Porsani, Milton J..
(2014)
Signal and traveltime parameter estimation using singular value decomposition.
Geophysics
Vitenskapelig artikkel
-
de Hoop, Maarten V.;
Holman, Sean F;
Iversen, Einar;
Lassas, Matti;
Ursin, Bjørn.
(2014)
Reconstruction of a conformally euclidean metric from local boundary diffraction travel times.
SIAM journal on computing (Print)
Vitenskapelig artikkel
-
Tantsereva, Anastasiya;
Ursin, Bjørn;
Favretto-Cristini, N.;
Cristini, P.;
Aizenberg, A. M..
(2014)
Numerical modeling of 3D zero-offset laboratory data by a discretized Kirchhoff integral method.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Favretto-Cristini, Nathalie;
Cristini, Paul.
(2014)
Fresnel volume and interface Fresnel zone for reflected and transmitted waves from a curved interface in anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Wiik, Torgeir;
Hokstad, Ketil;
Ursin, Bjørn;
Mutschard, Lutz.
(2013)
Joint contrast source inversion of marine magnetotelluric and controlled-source electromagnetic data.
Geophysics
Vitenskapelig artikkel
-
Arntsen, Børge;
Kritski, Alexander;
Ursin, Bjørn;
Amundsen, Lasse.
(2013)
Shot-profile true amplitude crosscorrelation imaging condition.
Geophysics
Vitenskapelig artikkel
-
Aune, Erlend;
Eidsvik, Jo;
Ursin, Bjørn.
(2013)
Three-dimensional non-stationary and non-linear isotropic AVA inversion.
Geophysical Journal International
Vitenskapelig artikkel
-
Wiik, Torgeir;
Ursin, Bjørn;
Hokstad, Ketil.
(2013)
2.5D EM modelling in TIV conductive media and the effect of anisotropy in normalized amplitude responses.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Porsani, MJ;
Ursin, Bjørn;
Silva, MG;
Melo, PEM.
(2013)
Dip-adaptive singular-value decomposition filtering for seismic reflection enhancement.
Geophysical Prospecting
Vitenskapelig artikkel
-
Porsani, MJ;
Ursin, Bjørn;
Silva, MG.
(2013)
Dynamic estimation of reflectivity by minimum-delay seismic trace decomposition.
Geophysics
Vitenskapelig artikkel
-
Cristini, P.;
Favretto-Cristini, N.;
Tantsereva, Anastasiya;
Ursin, Bjørn;
Aizenberg, A;
Komatitsch, Dimitri.
(2012)
Laboratory benchmarks vs. Synthetic modeling of seismic wave propagation in complex environments (BENCHIE Project): Results for a spectral-element Method and the Tip Wave Superposition Method.
Journal of the Acoustical Society of America
Vitenskapelig artikkel
-
Abbad, Brahim;
Ursin, Bjørn.
(2012)
High-resolution bootstrapped differential semblance.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Iversen, Einar;
Tygel, M;
Ursin, Bjørn;
de Hoop, MV.
(2012)
Kinematic time migration and demigration of reflections in pre-stack seismic data.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
Pedersen, Ørjan;
Arntsen, Børge.
(2012)
Flux-normalized wavefield decomposition and migration of seismic data.
Geophysics
Vitenskapelig artikkel
-
Tygel, M;
Ursin, Bjørn;
Iversen, Einar;
de Hoop, MV.
(2012)
Estimation of geological dip and reflector curvature from zero-offset seismic reflections in heterogeneous anisotropic media.
Studia Geophysica et Geodaetica
Vitenskapelig artikkel
-
Pestana, RC;
Ursin, Bjørn;
Stoffa, PL.
(2012)
Rapid expansion and pseudo spectral implementation for reverse time migration in VTI media.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Tygel, Martin;
Ursin, Bjørn;
Iversen, Einar;
Hoop, Maarten V. de.
(2012)
Estimation of geological dip and curvature from time-migrated zero-offset reflections in heterogeneous anisotropic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Abbad, Brahim;
Ursin, Bjørn;
Porsani, Milton J..
(2011)
A fast, modified parabolic Radon transform.
Geophysics
Vitenskapelig artikkel
-
Malcolm, AE;
de Hoop, Martijn;
Ursin, Bjørn.
(2011)
Recursive imaging with multiply scattered waves using partial image regularization: A North Sea case study.
Geophysics
Vitenskapelig artikkel
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2011)
AVA inversion of the top Utsira Sand reflection at the Sleipner field.
Geophysics
Vitenskapelig artikkel
-
Pestana, Reynam C.;
Ursin, Bjørn;
Stoffa, Paul L..
(2011)
Seperate P- and SV-wave equations for VTI media.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Wiik, Torgeir;
Løseth, Lars Ole;
Ursin, Bjørn;
Hokstad, Ketil.
(2011)
TIV contrast source inversion of mCSEM data.
Geophysics
Vitenskapelig artikkel
-
Tyapkin, Y;
Ursin, Bjørn;
Perroud, H;
Silinska, O;
Tiapkina, Olena.
(2010)
Zero- and first-order approximations for least-squares estimation of seismic signal with coherent and random noise.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Nag, Steinar;
Alerini, Mathias;
Ursin, Bjørn.
(2010)
PP/PS anisotropic stereotomography.
Geophysical Journal International
Vitenskapelig artikkel
-
Pedersen, Ørjan;
Brandsberg-Dahl, Sverre;
Ursin, Bjørn.
(2010)
Seismic imaging using lateral adaptive windows.
Geophysics
Vitenskapelig artikkel
-
Wang, Shen;
de Hoop, Maarten V.;
Ursin, Bjørn.
(2010)
Illumination analysis of wave-equation imaging with curvelets.
Inverse Problems
Vitenskapelig artikkel
-
Porsani, MJ;
Silva, MG;
Melo, PEM;
Ursin, Bjørn.
(2010)
SVD filtering applied to ground-roll attenuation.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Pedersen, Ørjan;
Ursin, Bjørn;
Helgesen, Hans Kristian.
(2010)
One-way wave-equation migration of compressional and converted waves in a VTI medium.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Westerdahl, H.;
Thompson, M.;
Haugen, Jon Andre;
Reitan, Arne;
Landrø, Martin.
(2010)
Multicomponent ocean bottom and vertical cable seismic acquisition for wavefield reconstruction.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Westerdahl, Harald;
Thompson, Mark;
Haugen, Jon Andre;
Reitan, Arne;
Landrø, Martin.
(2010)
Multicomponent OBS and VC acquisition for wavefield reconstruction.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Alerini, Mathias;
Ursin, Bjørn.
(2009)
Adaptive focusing window for seismic angle migration.
Geophysics
Vitenskapelig artikkel
-
Vivas, FA;
Pestana, RC;
Ursin, Bjørn.
(2009)
A new stabilized least-squares imaging condition.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2009)
Improved geometric-spreading approximation in layered transversely isotropic media.
Geophysics
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Tsvankin, I;
Aizenberg, A;
Ursin, Bjørn.
(2009)
Effective reflection coefficients for curved interfaces in transversely isotropic media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin;
Iversen, Einar.
(2009)
SS-traveltime parameters from PP and PS reflections.
Geophysics
Vitenskapelig artikkel
-
deplante, christian;
Ursin, Bjørn.
(2009)
Frequency attenuation and resolution of seismic data receive the full treatment at research workshop.
First Break
Vitenskapelig artikkel
-
Landrø, Martin;
Holt, Rune Martin;
Ursin, Bjørn.
(2009)
ROSE - Rock Physics and Seismic Reserach at the Norwegian University of Science and Technology.
Exploration & Production. The Oil and Gas Review
Fagartikkel
-
Abbad, Brahim;
Ursin, Bjørn;
Rappin, D.
(2009)
Automatic nonhyperbolic velocity analysis.
Geophysics
Vitenskapelig artikkel
-
Malcolm, AE;
Ursin, Bjørn;
de Hoop, Martijn.
(2009)
Seismic imaging and illumination with internal multiples.
Geophysical Journal International
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Aizenberg, Arkady M.;
Ursin, Bjørn.
(2009)
Tip-wave superposition method with effective reflection and transmission coefficients: A new 3D Kirchhoff-based approach to synthetic seismic modeling.
The Leading Edge
Vitenskapelig artikkel
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, Arne;
Dischler, Eirik;
Ursin, Bjørn.
(2008)
Wave equation depth migration—a new method of solution.
Society of Exploration Geophysicists. Expanded Abstracts with Biographies
Vitenskapelig artikkel
-
Amundsen, Lasse;
Reitan, Arne;
Reitan, Arne;
Arntsen, Børge;
Ursin, Bjørn.
(2008)
Elastic nonlinear amplitude versus angle inversion and data-driven depth imaging in stratified media derived from inverse scattering approximations.
Inverse Problems
Vitenskapelig artikkel
-
Rabben, Tor Erik;
Tjelmeland, Håkon;
Ursin, Bjørn.
(2008)
Non-linear Bayesian joint inversion of seismic reflection coefficients.
Geophysical Journal International
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
Equivalent time-average and effective medium for periodic layers.
Geophysical Prospecting
Vitenskapelig artikkel
-
Pedersen, Ørjan;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Wide-angle phase-slowness approximations in VTI media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin.
(2007)
Zero-offset seismic amplitude decomposition and migration.
Geophysics
Vitenskapelig artikkel
-
Haugen, Jon Andre;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Sensitivity of Dix-type inverse formulae.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Carcione, JM;
Ursin, Bjørn;
Nordskag, Janniche Iren.
(2007)
Cross-property relations between electrical conductivity and the seismic velocity of rocks.
Geophysics
Vitenskapelig artikkel
-
Ayzenberg, Milana;
Aizenberg, Arkady M.;
Helle, Hans B.;
Klem-Musatov, Kamill D.;
Pajchel, Jan;
Ursin, Bjørn.
(2007)
3D diffraction modeling of singly scattered acoustic wavefields based on the combination of surface integral propagators and transmission operators.
Geophysics
Vitenskapelig artikkel
-
Løseth, Lars Ole;
Ursin, Bjørn.
(2007)
Electromagnetic fields in planarly layered anisotropic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
Estimation of layer parameters for linear P- and S-wave velocity functions.
Geophysics
Vitenskapelig artikkel
-
Tygel, Martin;
Ursin, Bjørn;
Stovas, Alexey.
(2007)
Convergence of traveltime power series for a layered VTI medium.
Geophysics
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn.
(2007)
Direct multichannel predictive deconvolution.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2006)
Traveltime approximations for a layered transversely isotropic medium.
Geophysics
Vitenskapelig artikkel
-
Amundsen, Lasse;
Løseth, Lars Ole;
Mittet, Rune;
Ellingsrud, Svein;
Ursin, Bjørn.
(2006)
Decomposition of electromagnetic fields into upgoing and downgoing components.
Geophysics
Vitenskapelig artikkel
-
Løseth, Lars Ole;
Pedersen, Hans Magne;
Ursin, Bjørn;
Amundsen, Lasse;
Ellingsrud, Svein.
(2006)
Low-frequency electromagnetic fields in applied geophysics: Waves or diffusion?.
Geophysics
Vitenskapelig artikkel
-
Tygel, M.;
Ursin, Bjørn.
(2006)
Divergent and asymptotic nature of the time-offset Taner-Koehler series in reflection seismics - Discussion.
Geophysics
Leder
-
Stovas, Alexey;
Ursin, Bjørn.
(2006)
Parameter estimation for a linear velocity function.
Russian Geology and Geophysics
Vitenskapelig artikkel
-
Tyapkin, Yuriy;
Ursin, Bjørn.
(2005)
Optimum stacking of seismic records with irregular noise.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2005)
Generalized Dix equations for layered transversely isotropic medium.
Geophysics
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn;
de Hoop, Maarten V..
(2005)
Depth-consistent reflection tomography using PP and PS seismic data.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Hoop, Maarten V.;
Foss, Stig-Kyrre;
Brandsberg-Dahl, Sverre.
(2005)
Seismic angle tomography.
The Leading Edge
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Hoop, Maarten V.;
Brandsberg-Dahl, Sverre;
Sollid, Anders.
(2005)
Seismic angle migration.
The Leading Edge
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
de Hoop, Maarten V.;
Ursin, Bjørn.
(2005)
Linearized 2.5-dimensional parameter imaging inversion in anisotropic elastic media.
Geophysical Journal International
Vitenskapelig artikkel
-
Toverud, T;
Ursin, Bjørn.
(2005)
Comparison of seismic attenuation models using zero-offset vertical seismic profiling (VSP) data.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn.
(2004)
Parameter inversion and angle migration in anisotropic elastic media.
Geophysics
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn;
Sollid, Anders.
(2004)
A practical approach to PP seismic angle tomography.
Geophysical Prospecting
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2004)
New travel-time approximations for a transversely isotropic medium.
Journal of Geophysics and Engineering
Vitenskapelig artikkel
-
Foss, Stig-Kyrre;
Ursin, Bjørn.
(2004)
2.5D modelling, inversion and angle migration in anisotropic elastic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2003)
Reflection and transmission responses of layered transversely isotropic visco-elastic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Hokstad, Ketil.
(2003)
Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis.
Geophysics
Vitenskapelig artikkel
-
Brandsberg-Dahl, Sverre;
Ursin, Bjørn;
de Hoop, M.V..
(2003)
Seismic velocity analysis in the scattering/azimuth domain.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Bauer, Christian;
Zhao, H.;
Fichler, Christine.
(2003)
Combined seismic inversion and gravity modelling of a shallow anomaly in the southern Barents Sea.
Geophysics
Vitenskapelig artikkel
-
Brandsberg-Dahl, Sverre;
de Hoop, M.V.;
Ursin, Bjørn.
(2003)
Focusing in dip and AVA compensation on scattering angle/azimuth common image gathers.
Geophysics
Vitenskapelig artikkel
-
Sollid, A.;
Ursin, Bjørn.
(2003)
Scattering-angle migration of OBS data in weakly anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Hokstad, K.
(2003)
Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis.
Geophysics
Vitenskapelig artikkel
-
Sollid, Anders;
Ursin, Bjørn.
(2003)
Scattering-angle migration of ocean-bottom seismic data in weakly anisotropic media.
Geophysics
Vitenskapelig artikkel
-
Eide, Alfhild Lien;
Omre, Henning;
Ursin, Bjørn.
(2002)
Prediction of reservoir variables based on seismic data and well observations.
Journal of the American Statistical Association
Vitenskapelig artikkel
-
Ettrich, N.;
Sollid, A.;
Ursin, Bjørn.
(2002)
Out-of-plane geometrical spreading in anisotropic media.
Geophysical Prospecting
Vitenskapelig artikkel
-
Pham, Nam H.;
Carcione, José M.;
Helle, Hans B.;
Ursin, Bjørn.
(2002)
Wave velocities and attenuation of shaley sandstones as a function of pore pressure and partial saturation.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Toverud, Tommy.
(2002)
Comparison of seismic dispersion and attenuation models.
Studia Geophysica et Geodaetica
Vitenskapelig artikkel
-
Ursin, Bjørn;
Stovas, Alexey.
(2002)
Reflection and transmission responses of a layered isotropic visco-elastic medium.
Geophysics
Vitenskapelig artikkel
-
Toverud, Tommy;
Dimri, V.P.;
Ursin, Bjørn.
(2001)
Comparison of deconvolution methods for scaling reflectivity.
Journal of Geophysics
Vitenskapelig artikkel
-
Helle, Hans B.;
Bhatt, Alpana;
Ursin, Bjørn.
(2001)
Porosity and permeability prediction from wireline logs using artificial neural networks: a North Sea case study.
Geophysical Prospecting
Vitenskapelig artikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2001)
Second-order approximations of the reflection and transmission coefficients between two visco-elastic isotropic media.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Schleicher, J.;
Tygel, Martin;
Bleistein, N.;
Ursin, Bjørn.
(2001)
The Kirchhoff-Helmholtz integral for anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn.
(2000)
Mixed-phase deconvolution and wavelet estimation.
The Leading Edge
Vitenskapelig artikkel
-
Causse, Emmanuel;
Ursin, Bjørn.
(2000)
Viscoacoustic reverse-time migration.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Porsani, Milton.
(2000)
Estimation of an optimal mixed-phase inverse filter.
Geophysical Prospecting
Vitenskapelig artikkel
-
Tygel, Martin;
Ursin, Bjørn.
(1999)
Weak-contrast edge and vertex diffractions in anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
-
Ekren, Bjørn Olav;
Ursin, Bjørn.
(1999)
True-amplitude frequency-wavenumber constant-offset migration.
Geophysics
Vitenskapelig artikkel
-
Causse, Emmanuel;
Ursin, Bjørn.
(1999)
Asymptotic error analysis of constant-velocity viscoacoustic migration.
Geophysics
Vitenskapelig artikkel
-
Causse, Emmanuel;
Mittet, Rune;
Ursin, Bjørn.
(1999)
Preconditioning of full-waveform inversion in viscoacoustic media.
Geophysics
Vitenskapelig artikkel
-
Lu, Guochun;
Ursin, Bjørn;
Lutro, Jan.
(1999)
Model-based removal of water-layer multiple reflections.
Geophysics
Vitenskapelig artikkel
-
Bakke, Nils E.;
Ursin, Bjørn.
(1998)
Thin-bed AVO effects.
Geophysical Prospecting
Vitenskapelig artikkel
-
Porsani, Milton J.;
Ursin, Bjørn.
(1998)
Mixed-phase deconvolution.
Geophysics
Vitenskapelig artikkel
-
Novais, Amélia;
Santos, Lucio T.;
Tygel, Martin;
Ursin, Bjørn.
(1997)
A unified Born-Kirchhoff representation for acoustic media.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tygel, Martin.
(1997)
Reciprocal volume and surface scattering integrals for anisotropic elastic media.
Wave motion
Vitenskapelig artikkel
-
Ursin, Bjørn.
(1997)
Methods for estimating the seismic reflection response.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Haugen, Geir U..
(1996)
Weak-contrast approximation of the elastic scattering matrix in anisotropic media.
Pure and Applied Geophysics (PAGEOPH)
Vitenskapelig artikkel
-
Santos, L.T. dos;
Ursin, Bjørn;
Tygel, Martin.
(1996)
Razlo#vzenie volnovogo polja v rjad v slu#vcae stratificirovannogo fljuida.
Geologiâ i geofizika (Soviet Geology and Geophysics)
Vitenskapelig artikkel
-
Ursin, Bjørn;
Haugen, Geir U..
(1996)
Weak-contrast approximation of the elastic scattering matrix in anisotropic media.
Pure and Applied Geophysics (PAGEOPH)
Vitenskapelig artikkel
-
Shapiro, Sergei A.;
Hubral, Peter;
Ursin, Bjørn.
(1996)
Reflectivity/transmissivity for one-dimensional inhomogeneous random elastic media : dynamic-equivalent-medium approach.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tjåland, Egil.
(1996)
The information content of the elastic reflection matrix.
Geophysical Journal International
Vitenskapelig artikkel
-
Ursin, Bjørn;
de Matos Neto, Joao B.;
Porsani, Milton J..
(1996)
Seismic reflection estimation with coloured noise.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Ursin, Bjørn;
Ekren, Bjørn Olav;
Tjåland, Egil.
(1996)
Linearized elastic parameter sections.
Geophysical Prospecting
Vitenskapelig artikkel
-
Ursin, Bjørn;
Ekren, Bjørn Olav.
(1995)
Robust AVO analysis.
Geophysics
Vitenskapelig artikkel
-
Pestana, R.;
Chaves, R.D.;
Ursin, Bjørn.
(1995)
Migra#,c#~ao de ondas planas em meios lateralmente heterog#^eneso.
Revista Brasileira de Geofisica
Vitenskapelig artikkel
-
Ursin, Bjørn;
Tjåland, Egil.
(1993)
The accuracy of linearized elastic parameter estimation.
Journal of Seismic Exploration
Vitenskapelig artikkel
-
Arntsen, Børge;
Ursin, Bjørn.
(1993)
Estimation of reflection coefficients from zero-offset field data.
Geophysics
Vitenskapelig artikkel
-
Ursin, Bjørn;
Dahl, Terje.
(1992)
Seismic reflection amplitudes.
Geophysical Prospecting
Vitenskapelig artikkel
-
Dahl, Terje;
Ursin, Bjørn.
(1992)
Non-linear AVO inversion for a stack of anelastic layers.
Geophysical Prospecting
Vitenskapelig artikkel
-
Landrø, Martin;
Ursin, Bjørn.
(1988)
Detection of zero-offset seismic reflections.
First Break
Vitenskapelig artikkel
-
Arntsen, Børge;
Ursin, Bjørn.
(1985)
Ccomputation of zero-offset vertical . seismic profiles including geometrical spreading and absorption.
Geophysical Prospecting
Vitenskapelig artikkel
Del av bok/rapport
-
Mutschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2012)
Estimation of Seafloor Electromagnetic Receiver Orientation.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Jakobsen, Morten;
Ursin, Bjørn.
(2011)
T-matrix Approach to the Nonlinear Waveform Inversion Problem in 4D Seismics.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Malcolm, A.;
Ursin, Bjørn;
de Hoop, M.V..
(2010)
Imaging with Doubly-scattered Waves - A North Sea Case Study.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, A.;
Ursin, Bjørn.
(2009)
Wave-equation Depth Migration in Elastic Media - New Results.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Wiik, Torgeir;
Ursin, Bjørn;
Hokstad, K.
(2009)
2.5D Frequency Domain EM Modeling in Conductive TIV Media.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A;
Helle, H.B.;
Klem-Musatov, K.D.;
Pajchel, J.;
Ursin, Bjørn.
(2009)
Our Experiences of 3D Synthetic Seismic Modeling with Tip-wave Superposition Method and Effective Coefficients.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Alerini, M.;
Ursin, Bjørn.
(2008)
Adaptive Limitation of the Migration Operator Aperture.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2008)
Improved Geometrical Spreading Approximation in Layered Transversely Isotropic Media (P072).
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Abbad, Brahim;
Rappin, D..
(2008)
Automatic nonhyperbolic velocity analysis. Expanded abstracts, 3058-3062.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Tsvankin, Ilya;
Aizenberg, A. M.;
Ursin, Bjørn.
(2008)
Effective Reflection Coefficients for Curved Interfaces in TI Media.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A. M.;
Helle, Hans Bjarne;
Klem-Musatov, Kamill D.;
Pajchel, J;
Ursin, Bjørn.
(2008)
3D Modeling of Acoustic Green's Function in Layered Media with Diffracting Edges.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Malcolm, A.;
Ursin, Bjørn;
de Hoop, M.V..
(2008)
Subsalt imaging with internal multiples. Expanded abstracts, 2461-2465.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Amundsen, Lasse;
Arntsen, Børge;
Reitan, A.;
Dischler, E.Ø.;
Ursin, Bjørn.
(2008)
Wave equation depth migration - a new method of solution. Expanded abstracts, 2252-2256.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
The Reflection and Transmission Responces of a Periodically Layered Medium.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2007)
The Geometrical Spreading in VTI Medium Revisited.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ursin, Bjørn;
Tygel, M..
(2007)
Zero-offset seismic amplitude decomposition and migration.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Abbad, Brahim;
Ursin, Bjørn;
Rappin, D..
(2007)
Automatic nonhyperbolic velocity analysis in VTI media.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2007)
Nonlinear least squares inversion of reflection coefficients using Bayesian regularization.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hoang, P.;
Avseth, P.A.;
Ursin, Bjørn;
van Wijngaarden, A.J..
(2007)
Rock Physics Depth Trend Analysis Based on Stacking Velocity.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Løseth, L.O.;
Ursin, Bjørn;
Amundsen, L..
(2007)
On the Effects of Anisotropy in Marine CSEM.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Alerini, M.;
Riede, M.;
Ursin, Bjørn.
(2007)
Limited-Aperture Migration by Sterotomography Output.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ayzenberg, Milana;
Aizenberg, A.;
Helle, H.;
Klem-Musatov, K.;
Pajchel, J.;
Ursin, Bjørn.
(2007)
3-D Acoustic Green's Function Modeling in Multilayered Overburden.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Pedersen, Ørjan;
Brandsberg-Dahl, Sverre;
Ursin, Bjørn.
(2007)
Seismic Imaging Using Lateral Adaptive Windows.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tyapkin, Y.;
Ursin, Bjørn;
Roganov, Y.;
Nekrasov, I.;
Shumlyanskaya, G..
(2007)
Least-Squares Signal Estimation with Complicated Mathematical Models of Seismic Data.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nag, Steinar;
Alerini, M.;
Duveneck, E.;
Ursin, Bjørn.
(2006)
2D stereotomography for anisotropic media.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tyapkin, Yuriy;
Ursin, Bjørn;
Roganov, Y.;
Nekrasov, I..
(2006)
Optimum seismic signal estimation with complicated models of coherent and random noise.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Pedersen, Ørjan;
Ursin, Bjørn;
Stovas, Alexey.
(2006)
Wide-Angle Phase-Slowness Approximations in VTI Media (P186).
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Aizenberg, A.M.;
Ayzenberg, Milana;
Helle, H.B.;
Klem-Musatov, K.D.;
Pajchel, J.;
Ursin, Bjørn.
(2006)
3D seismic diffraction modelling in multilayered media in terms of surface integrals.
European Association of Geoscientists and Engineers (EAGE)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Stovas, Alexey;
Ursin, Bjørn.
(2005)
The reflection and transmission responses of a periodic layered medium.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Eide, Alfhild Lien;
Omre, Henning;
Ursin, Bjørn.
(1997)
Stochastic reservoir characterization conditioned on seismic data.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Haugen, Geir U.;
Ursin, Bjørn.
(1996)
Elastic properties of rocks with fracture-induced anisotropy.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Mütschard, Lutz;
Hokstad, Ketil;
Ursin, Bjørn.
(2017)
On Processing and Inversion of Marine Magnetotelluric Data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2017/311)
Doktorgradsavhandling
-
Wiik, Torgeir;
Ursin, Bjørn.
(2013)
Modeling and Inversion of Marine Electromagnetic Data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2013:67)
Doktorgradsavhandling
-
Abbad, Brahim;
Ursin, Bjørn.
(2011)
Nonhyperbolic velocity analysis and improved demultiple for seismic data.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2011:300)
Doktorgradsavhandling
-
Pedersen, Ørjan;
Ursin, Bjørn.
(2010)
One-way wave-equation migration for wide-angle propagation in anisotropic media.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2010:140)
Doktorgradsavhandling
-
Rabben, Tor Erik;
Ursin, Bjørn.
(2009)
Non-linear Bayesian inversion of seismic reflection amplitudes.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
-
Ayzenberg, Milana;
Ursin, Bjørn.
(2008)
Three-Dimensional Seismic Diffraction Modeling.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2008:304)
Doktorgradsavhandling
Formidling
2019
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; Saksala, Teemu; Ilmavirta, Joonas; de Hoop, Maarten V.. (2019) Higher-order Hamilton-Jacobi perturbation theory for anisotropic heterogeneous media: transformation between Cartesian and ray-centred coordinates. Geo-Mathematical Imaging Group Geo-Mathematical Imaging Group Annual Project Review, pp. 329-349 , Rice University, TX 2019-04-29 - 2019-04-30
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; Saksala, Teemu; Ilmavirta, Joonas; de Hoop, Maarten V.. (2019) Higher-order Hamilton-Jacobi perturbation theory for anisotropic heterogeneous media: dynamic ray tracing in ray-centred coordinates. Geo-Mathematical Imaging Group Geo-Mathematical Imaging Group Annual Project Review, pp. 351-381 , Rice University, TX 2019-04-29 - 2019-04-30
2018
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; de Hoop, Maarten V.. (2018) Higher-order Dynamic Ray Tracing for Extrapolation of Traveltime and Geometrical Spreading. European Association of Geoscientists and Engineers EAGE 80th Conference & Exhibition , Copenhagen 2018-06-11 - 2018-06-14
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; de Hoop, Maarten V.. (2018) Higher-order extrapolation of traveltime and geometrical spreading in anisotropic heterogeneous media. Society of Exploration Geophysicists SEG Annual Meeting , Anaheim 2018-10-14 - 2018-10-19
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; de Hoop, Maarten V.. (2018) Higher-order Hamilton-Jacobi theory with applications for 3D heterogeneous anisotropic media. Geo-Mathematical Imaging Group, Rice University Annual Meeting of the Geo-Mathematical Imaging Group , Houston 2018-04-18 - 2018-04-19
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Faglig foredragJakobsen, Morten; Psencik, Ivan; Iversen, Einar; Ursin, Bjørn. (2018) Nonlinear inverse scattering in anisotropic elastic media. University of California, Santa Cruz International workshop on Seismic-Wave Scattering, Imaging and Inversion , Santa Cruz, California 2018-07-19 - 2018-07-21
2017
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Faglig foredragJakobsen, Morten; Psencik, Ivan; Iversen, Einar; Ursin, Bjørn. (2017) On the parameterization of seismic anisotropy in elastic waveform inversion: The HTI case. European Association of Geoscientists and Engineers EAGE Annual Meeting , Paris 2017-06-12 - 2017-06-15
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Vitenskapelig foredragIversen, Einar; Ursin, Bjørn; de Hoop, Maarten V.. (2017) Higher-order Hamilton-Jacobi perturbation equations for anisotropic media. Geo-Mathematical Imaging Group Geo-Mathematical Imaging Group Annual Project Review, pp. 227-250 , Rice University, TX 2017-04-15 -
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Vitenskapelig foredragJakobsen, Morten; Psencik, Ivan; Iversen, Einar; Ursin, Bjørn. (2017) On the Parameterization of Seismic Anisotropy in Elastic Waveform Inversion - The HTI Case. European Association of Geoscientists and Engineers 79th EAGE Conference and Exhibition 2017 , Paris 2017-06-12 -
2016
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Vitenskapelig foredragSilva, Michelângelo G.; Porsani, Milton J.; Ursin, Bjørn. (2016) A single-trace singular value decomposition Method With Application to ground-roll removal. SEG Annual Meeting , Dallas 2016-10-16 - 2016-10-21
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Vitenskapelig foredragFavretto-Cristini, N.; Tantsereva, Anastasiya; Aizenberg, A; Ursin, Bjørn; Cristini, P.. (2016) Validation expérimental de simulations numérique de champs d'ondes diffractés par une structure viscoélastique à topographie complexe. Congrés Francais d'Acoustique , Le Mans 2016-04-11 - 2016-04-15
2014
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Vitenskapelig foredragFavretto-Cristini, N.; Ursin, Bjørn; Cristini, P.. (2014) Interface Fresnel Zone for Reflected Waves from a Curved Interface in Anisotropic Media. EAGE 76 th EAGE Conference & Exhibition 2014 , Amsterdam 2014-06-16 - 2014-06-19
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Vitenskapelig foredragUrsin, Bjørn; da Silva, M. G.; Porsani, Milton J.. (2014) Signal and Traveltime Parameter Estimation Using Singular Value Decomposition. EAGE 76 th EAGE Conference & Exhibition 2014 , Amsterdam RAI 2014-06-16 - 2014-06-19
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Vitenskapelig foredragFavretto-Cristini, N.; Ursin, Bjørn; Cristini, P.. (2014) Resolution sismique laterale le long d'une interface courbe entre deux milieux anisotropes: cas des ondes reflechies. CFA Le Congres Francais d'Acoustique , Marseille 2014-04-22 - 2014-04-25
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Vitenskapelig foredragFavretto-Cristini, N.; Cristini, P.; Tantsereva, Anastasiya; Ursin, Bjørn; Komatitsch, Dimitri; Aizenberg, A. M.. (2014) Simulations numeriques versus Benchmarks experimentaux de la propagation des ondes en environnement topographique complexe: resultats d'une methode d'elements finis spectraux et de la methode de l'integrale de Kirchhoff discretisee. CFA 2014 Le Congres Francais d'Acoustique , Poitier 2014-04-22 - 2014-04-25
2013
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Vitenskapelig foredragUrsin, Bjørn; Tantsereva, Anastasiya; Favretto-Cristini, N.; Cristini, P.; Komatisch, D.; Aizenberg, A. M.. (2013) Numerical modeling of zero-offset Acoustic data by the Tip-Wave Superposition Method and the Spectral-Element Method. International Conference on 3-D Wave Propagation and Imaging through the Earth's Interior , Wuhan 2013-05-18 - 2013-05-20
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2013) Nonlinear waveform inversion as a sequence of linear inverse problems. Workshop on Full Waveform Inversion , Muscat 2013-04-27 - 2013-05-01
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Vitenskapelig foredragUrsin, Bjørn; silva, michelângelo G.; Porsani, Milton J.. (2013) Generalized semblance coefficients using singular value decomposition. 13th International Congress of the Brazilian Geophysical Society , Rio de Janeiro 2013-08-26 - 2013-08-29
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Vitenskapelig foredragTantsereva, Anastasiya; Ursin, Bjørn; Favretto-Cristini, N.; Cristini, P.; Aizenberg, A. M.. (2013) Numerical modelling of zero-offset Acoustic data by the tip-wave superposition method. SPE 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013 , London 2013-06-10 - 2013-06-13
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2013) Nonlinear seismic waveform inversion. KSEG KSEG Symposium on Geophysics for Discovery and Exploration 2013-09-19 - 2013-09-21
2012
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Vitenskapelig foredragFavretto-Cristini, N.; Cristini, P.; Komatitsch, Dimitri; Ursin, Bjørn; Tantsereva, Anastasiya; Aizenberg, A. M.. (2012) Laboratory benchmarks vs. Synthetic modeling of seismic wave propagation in complex environments (BENCHIE Project). Acoustics 2012 Nantes Conference , Nantes 2012-04-23 - 2012-04-27
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Vitenskapelig foredragPorsani, Milton J.; silva, michelângelo G.; Ursin, Bjørn. (2012) Reflectivity estimation using minimum-delay seismic trace decomposition. V Simposio Brasileiro de Geofisica , Salvador 2012-11-27 - 2012-11-29
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Vitenskapelig foredragTantsereva, Anastasiya; Ursin, Bjørn; Favretto-Cristini, N.; Cristini, P.; Komatitsch, Dimitri; Aizenberg, A. M.. (2012) Comparison of Numerical Seismic Modeling Results with Acoustic Water-tank Data. EAGE 74th EAGE Conference & Exhibition incorporating SPE EUROPEC 2012 , Copenhagen 2012-06-04 - 2012-06-07
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Vitenskapelig foredragAndrade, Marcus C.B.; Porsani, Milton J.; Medeiros, Walter E.; Ursin, Bjørn. (2012) Representacão Tempo versus Frequência do Traco Sismico os Mètodos de Wigner-Ville e a Decomposicão de Fase Minima. V Simposio Brasileiro de Geofisica , Salvador 2012-11-27 - 2012-11-29
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2012) The nonlinear waveform inversion problem. Lofotenseminaret i petroleumsgeofysikk , Henningsvær Bryggehotell 2012-08-15 - 2012-08-17
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2012) Seismic waveform inversion using a T-matrix approach. KSEG KSEG Symposium on Geophysics for Discovery and Exploration 2012-09-19 - 2012-09-21
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2012) Nonlinear seismic waveform inversion using a Born iterative T-matrix method. Society of Exploration Geophysics SEG Annual Meeting , Las Vegas 2012-11-04 - 2012-11-09
2011
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Vitenskapelig foredragPestana, Reynam C.; Ursin, Bjørn; Stoffa, Paul L.. (2011) Seperate P- and SV-wave equations for VTI media. SEG San Antonio 2011 Annual Meeting 81st SEG Meeting , San Antonio, Texas 2011-09-18 - 2011-09-23
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Vitenskapelig foredragPestana, Reynam C.; Ursin, Bjørn; Stoffa, Paul L.. (2011) Seperate P- and SV-wave equations for VTI media. 11th Int. Congress of the Brazilian Geophysical Society 11th Int. Congress of the Brazilian Geophysical Society , Rio de Janeiro 2011-08-15 - 2011-08-18
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Vitenskapelig foredragAbbad, Brahim; Ursin, Bjørn. (2011) High-resolution bootstrapped differential-semblance. 81st SEG Meeting SEG San Antonio 2011 Annual Meeting , San Antonio 2011-09-18 - 2011-09-23
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Vitenskapelig foredragJakobsen, Morten; Ursin, Bjørn. (2011) T-matrix Approach to the Nonlinear Waveform Inversion Problem in 4D Seismics. 73rd EAGE Conference & Exhibition incorporating SPE EUROPEC 73rd EAGE Conference & Exhibition incorporating SPE EUROPEC 2011 , Wien 2011-05-23 - 2011-05-26
2010
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Vitenskapelig foredragUrsin, Bjørn; Amundsen, Lasse; Westerdahl, Harald; Thompson, Mark; Haugen, Jon Andre; Reitan, Arne. (2010) Multicomponent OBS and VC acquisition for wavefield reconstruction. SEG 80th SEG Meeting , Denver 2010-10-17 - 2010-10-22
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Vitenskapelig foredragUrsin, Bjørn; Malcolm, A. E.; de Hoop, M.V.. (2010) Imaging with Doubly-scattered Waves - A North Sea Case Study. EAGE 72nd EAGE Conference , Barcelona 2010-06-14 - 2010-06-17
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Vitenskapelig foredragUrsin, Bjørn; Porsani, Milton J.; Silva, Michelângelo G.; Melo, Paulo E. M.. (2010) An adaptive local-slope SVD filtering approach to enhance events on seismic sections. SEG 80th SEG Meeting , Denver 2010-10-17 - 2010-10-22
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Vitenskapelig foredragUrsin, Bjørn; Wiik, Torgeir; Løseth, L.O.; Hokstad, Ketil. (2010) TIV Contrast Source Inversion of mCSEM data. EGM EGM 2010 International Workshop , Capri 2010-04-11 - 2010-04-14
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn; Toverud, Tommy. (2010) Seismic attenuation and dispersion models: Theory and VSP data analysis. Workshop meeting seismic waves in laterally inhomogeneous media VII 2010 , Czech Republic 2010-06-21 - 2010-06-26
2009
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Vitenskapelig foredragAyzenberg, Milana; Aizenberg, Arkady M.; Helle, Hans Bjarne; Klem-Musatov, Kamill D.; Pajchel, J.; Ursin, Bjørn. (2009) Our Experiences of 3D Synthetic Seismic Modeling with Tip-wave Superposition Method and Effective Coefficients. EAGE Conference , Amsterdam 2009-06-08 - 2009-06-11
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Vitenskapelig foredragAmundsen, Lasse; arnstsen, børge; Reitan, A.; Ursin, Bjørn. (2009) Wave-equation Depth Migration in Elastic Media New Results. EAGE Conference , Amsterdam 2009-06-08 - 2009-06-11
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Vitenskapelig foredragWiik, Torgeir; Ursin, Bjørn; Hokstad, Ketil. (2009) Frequency Domain EM Modeling in Conductive TIV Media. EAGE Conference , Amsterdam 2009-06-08 - 2009-06-11
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Vitenskapelig foredragMalcolm, A.; Ursin, Bjørn; de Hoop, M.V.. (2009) Imaging with multiply scattered seismic waves. Waves 2009 , Pau 2009-06-15 - 2009-06-19
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Vitenskapelig foredragUrsin, Bjørn; Abbad, Brahim; Porsani, Milton J.. (2009) Multiple attenuation with a modified parabolic Radon transform. International Congress of the Brazilian Geophysical Society , Salvador 2009-08-24 - 2009-08-28
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Vitenskapelig foredragUrsin, Bjørn; Tygel, Martin; Iversen, Einar. (2009) SS-traveltime parameters from PP- and PS-reflections. International Congress of the Brazilian Geophysical Society , Salvador 2009-08-24 - 2009-08-28
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Vitenskapelig foredragWang, Shen; de Hoop, Maarten V.; Ursin, Bjørn. (2009) Illumination analysis of wave-equation imaging with "curvelets". SEG Houston 2009 International Exposition and Annual Meeting , Houston 2009-10-25 - 2009-10-30
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Vitenskapelig foredragTyapkin, Yuriy; Ursin, Bjørn; Silinska, Olena; Tiapkina, Olena. (2009) Zero- and first-order approximations for least-squares estimation of seismic signal contaminated by coherent and random noise of complex structure. SEG Houston 2009 International Exposition and Annual Meeting , Houston 2009-10-25 - 2009-10-30
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Vitenskapelig foredragPorsani, Milton J.; Silva, Michelângelo G.; Melo, Paulo E. M.; Ursin, Bjørn. (2009) Filtragem do ground roll utilizando SVD. International Congress of the Brazilian Geophysical Society , Salvador 2009-08-24 - 2009-08-28
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2009) Seismic attenuation and dispersion models-theory and VSP data analysis. EAGE EAGE-SEG Workshop , Barcelona 2009-09-14 - 2009-09-15
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Vitenskapelig foredragPorsani, Milton J.; silva, michelângelo G.; Melo, Paulo E. M.; Ursin, Bjørn. (2009) Ground-roll attenuation based on SVD filtering. SEG Houston 2009 International Exposition and Annual Meeting , Houston 2009-10-25 - 2009-10-30
2008
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Vitenskapelig foredragArntsen, Børge; Amundsen, Lasse; Dischler, Eirik Øverland; Reitan, Arne; Ursin, Bjørn. (2008) Wave equation depth migration - a new method of solution. Society of Exploration Geophysicists SEG Las Vegas 2008 , Las Vegas 2008-11-09 - 2008-11-14
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2008) Improved Geometrical Spreading Approximation in Layered Transversely Isotropic Media. EAGE 3rd Saint Petersburg International Conference & Exhibition , Saint Petersburg 2008-04-07 - 2008-04-10
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Vitenskapelig foredragMalcolm, A.; Ursin, Bjørn; de Hoop, M.V.. (2008) Subsalt imaging with internal multiples. Expanded abstracts, 2461-2465. SEG 78th SEG Meeting 2008-11-09 - 2008-11-14
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Vitenskapelig foredragUrsin, Bjørn; Abbad, Brahim; Rappin, D.. (2008) Automatic nonhyperbolic velocity analsysis. Expanded abstracts, 3058-3062. SEG 78th SEG Meeting , Las Vegas 2008-11-09 - 2008-11-14
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Vitenskapelig foredragAlerini, M.; Ursin, Bjørn. (2008) Adaptive limitation of the migration operator aperture. Extended abstracts, F032. EAGE 70th EAGE Conference , Roma 2008-06-09 - 2008-06-12
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Vitenskapelig foredragAyzenberg, Milana; Tsvankin, I; Aizenberg, A.M.; Ursin, Bjørn. (2008) Effective reflection coefficients for curved interfaces in TI media. Extended abstracts, P346. EAGE 70th EAGE Conference , Roma 2008-06-09 -
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Vitenskapelig foredragAyzenberg, Milana; Aizenberg, A.M.; Helle, H.B.; Klem-Musatov, K.D.; Pajchel, J.; Ursin, Bjørn. (2008) 3D modelling of acoustic Green's function in layered media with diffracting edges. Extended abstracts, F052. EAGE 70th EAGE Conference , Roma 2008-06-09 - 2008-06-12
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Vitenskapelig foredragAmundsen, Lasse; Arntsen, Børge; Reitan, A.; Dischler, E.Ø.; Ursin, Bjørn. (2008) Wave equation depth migration - a new method of solution. Expanded abstracts, 2252-2256. SEG 78th SEG Meeting , Las Vegas 2008-11-09 - 2008-11-14
2007
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Vitenskapelig foredragUrsin, Bjørn; Carcione, J.M.. (2007) Seimic-Velocity/Electrical-Conductivity Relations. EGM EGM 2007 International Workshop , Capri 2007-04-15 - 2007-04-18
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Vitenskapelig foredragLøseth, L.O.; Ursin, Bjørn; Amundsen, L.. (2007) On the Effects of Anisotropy in Marine CSEM. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragNordskag, Janniche Iren; Amundsen, Lasse; Ursin, Bjørn. (2007) Decomposition of Marine Electromagnetic Fields Into TE and TM Modes for Enhanced Interpretation. EGM EGM 2007 International Workshop , Capri 2007-04-15 - 2007-04-18
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Vitenskapelig foredragPedersen, Ørjan; Brandsberg-Dahl, Sverre; Ursin, Bjørn. (2007) Seismic Imaging Using Lateral Adaptive Windows. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragAlerini, M.; Riede, M.; Ursin, Bjørn. (2007) Limited-Aperture Migration by Sterotomography Output. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragRabben, Tor Erik; Ursin, Bjørn. (2007) Nonlinear least squares inversion of reflection coefficients using Bayesian regularization. SEG 77th SEG/San Antonio 2007 Annual Meeting , San Antonio 2007-09-23 - 2007-09-26
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Vitenskapelig foredragTyapkin, Y.; Ursin, Bjørn; Roganov, Y.; Nekrasov, I.; Shumlyanskaya, G.. (2007) Least-Squares Signal Estimation with Complicated Mathematical Models of Seismic Data. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragRabben, Tor Erik; Tjelmeland, Håkon; Ursin, Bjørn. (2007) Nonlinear Bayesian joint inversion of seismic reflection coefficients. EAGE Petroleum Geostatistics 2007, Cascais, Portugal , Cascais 2007-09-10 - 2007-09-14
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Vitenskapelig foredragHoang, P.; Avseth, P.A.; Ursin, Bjørn; van Wijngaarden, A.J.. (2007) Rock Physics Depth Trend Analysis Based on Stacking Velocity. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragAyzenberg, Milana; Aizenberg, A.; Helle, H.; Klem-Musatov, K.; Pajchel, J.; Ursin, Bjørn. (2007) 3-D Acoustic Green's Function Modeling in Multilayered Overburden. EAGE EAGE 69th Conference & Exhibition , London 2007-06-11 - 2007-06-14
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2007) The Reflection and Transmission Responces of a Periodically Layered Medium. Association for Mathematical Geology 12th Conference of the Int. Association for Mathematical Geology , Beijing 2007-08-26 - 2007-08-31
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Vitenskapelig foredragUrsin, Bjørn; Tygel, M.. (2007) Zero-offset seismic amplitude decomposition and migration. Brazilian Geophysical Society 10th International Congress of the Brazialian Geophysical Society , Rio de Janeiro 2007-11-19 - 2007-11-23
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Vitenskapelig foredragAbbad, Brahim; Ursin, Bjørn; Rappin, D.. (2007) Automatic nonhyperbolic velocity analysis in VTI media. Brazilian Geophysical Society 10th International Congress of the Brazilian Geophysical Society , Rio de Janeiro 2007-11-19 - 2007-11-23
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PosterMalcolm, A.; Ursin, Bjørn; de Hoop, M.. (2007) Multiples: From artifact prediction to image reconstruction via illumination. AGU AGU Fall Meeting , San Fransisco, CA 2007-12-09 - 2007-12-13
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PosterStovas, Alexey; Ursin, Bjørn. (2007) The Geometrical Spreading in VTI Medium Revisited. EAGE EAGE 69th Conference & Exhibition - London, UK , London 2007-06-11 - 2007-06-14
2006
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Vitenskapelig foredragAizenberg, A.M.; Ayzenberg, Milana; Helle, H.B.; Klem-Musatov, K.D.; Pajchel, J.; Ursin, Bjørn. (2006) 3D seismic diffraction modelling in multilayered media in terms of surface integrals. EAGE 68th EAGE Conference & Exhibition , Wien 2006-06-12 - 2006-06-15
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Vitenskapelig foredragPedersen, Ørjan; Ursin, Bjørn; Stovas, Alexey. (2006) Wide-Angle Phase-Slowness Approximations in VTI Media (P186). EAGE EAGE 68th Conference & Exhibition , Wien 2006-06-12 - 2006-06-15
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Vitenskapelig foredragNag, Steinar; Alerini, M.; Duveneck, E.; Ursin, Bjørn. (2006) 2D stereotomography for anisotropic media. Society of Exploration Geophysicists SEG International Exposition and Seventy-Sixth Annual Meeting , New Orleans 2006-10-01 - 2006-10-06
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Vitenskapelig foredragTyapkin, Yuriy; Ursin, Bjørn; Roganov, Y.; Nekrasov, I.. (2006) Optimum seismic signal estimation with complicated models of coherent and random noise. Society of Exploration Geophysicists SEG International Exposition and Seventy-Sixth Annual Meeting , New Orleans 2006-10-01 - 2006-10-06
2005
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Vitenskapelig foredragUrsin, Bjørn; Stovas, Alexey. (2005) Traveltime approximations for a layered transversely isotropic medium. Anisotropy Workshop , Praha 2005-06-13 - 2005-06-17
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2005) The reflection and transmission responses of a periodic layered medium. SEG SEG/Houston 2005 Annual Meeting , Houston 2005-11-06 - 2005-11-11
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Vitenskapelig foredragUrsin, Bjørn; Stovas, Alexey. (2005) P097 Generalized DIX equations for a layered transversely isotropic medium. EAGE EAGE 67th Conference & Exhibition , Madrid 2005-06-13 - 2005-06-16
2004
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Vitenskapelig foredragFoss, Stig-Kyrre; Ursin, Bjørn; de Hoop, Maarten V.; Sollid, Anders. (2004) Depth Consistent PP and PS seismic angle tomography, (E015). EAGE 66th EAGE Conference & Exhibition , Paris 2004-06-07 - 2004-06-10
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2004) New traveltime approximations for a transversely isotroptic medium, (P314). EAGE EAGE 66th Conference & Exhibition , Paris 2004-06-07 - 2004-06-10
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Vitenskapelig foredragUrsin, Bjørn; Stovas, Alexey. (2004) Traveltime approximations for a layered transversely isotropic medium. SEG SEG International Exposition and 74th Annual Meeting , Denver, Colorado 2004-10-10 - 2004-10-15
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Vitenskapelig foredragFoss, Stig-Kyrre; Ursin, Bjørn; de Hoop, Maarten V.. (2004) Depth-consistent P- and S-wave velocity reflection tomography using PP and PS seismic data. SEG SEG International and 74th Annual Meeting , Denver, Colorado 2004-10-10 - 2004-10-15
2003
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2003) Application of Committee Machines in Reservoir Characterisation While Drilling: A Novel Neural Network Approach in Log Analysis. 6th Nordic Symposium on Petrophysics , Trondheim 2001-05-16 -
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2003) New traveltime approximation for a layered transversely isotropic medium. EAGE/SEG Summer Research Workshop, Trieste, Extended abstracts, T03 , Trieste, Italy 2003-09-04 -
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Vitenskapelig foredragFoss, Stig-Kyrre; Ursin, Bjørn; Sollid, A.. (2003) A practical approach to automated PP angle tomography. EAGE/SEG Summer Research Workshop, Trieste, Extended abstracts, T29 , Trieste, Italy 2003-09-04 -
2002
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Vitenskapelig foredragHelle, Hans B.; Bhatt, Alpana; Ursin, Bjørn. (2002) Fluid saturation from well logs using modular neural networks. 64th EAGE Conference & Exhibition, Extended abstracts, B-45 , Florence, Italy 2002-05-30 -
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2002) Determination of facies from well logs using modular neural networks. 64th EAGE Conference & Exhibition, Extended abstracts, P091 , Florence, Italy 2002-05-30 -
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; Ursin, Bjørn; de Hoop, M.V.. (2002) Angle tomography. 64th EAGE Conference & Exhibition, Extended abstracts, B-22 , Florence, Italy 2002-05-30 -
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2002) Lithofacies identification in the North Sea - a neural network approach. 7th Nordic Symposium on Petrophysics , Akureyri, Iceland 2002-08-16 -
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Vitenskapelig foredragStovas, Alexey; Ursin, Bjørn. (2002) Second-order approximations of the transmission and reflection matrices at an interface between two visco-elastic TIV media. 64th EAGE Conference & Exhibition, Extended abstracts, C-26 , Florence, Italy 2002-05-30 -
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Vitenskapelig foredragUrsin, Bjørn; de Hoop, M.V.; Brandsberg-Dahl, Sverre; Sollid, A.; Clarke, R.A.. (2002) Seismic angle migration. Cairo 2002 International Petroleum Conference and Exhibition , Cairo 2002-10-30 -
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Vitenskapelig foredragUrsin, Bjørn; Hokstad, Ketil. (2002) Geometrical spreading in a layered transversely isotropic medium with vertical symmetry axis. 72nd SEG Meeting , Salt Lake City 2002-10-11 -
2001
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, M.V.; Ursin, Bjørn. (2001) AVA analysis and compensation on common image gathers in the angle domain. 63rd EAGE Conference, Amsterdam, Expanded abstracts, A-30 , Amsterdam 2001-06-15 -
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2001) Application of parallel neural networks for reservoir characterisation while drilling. 63rd EAGE Conference, Amsterdam, Expanded abstracts, L-18 , Amsterdam 2001-06-15 -
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, M.V.; Ursin, Bjørn. (2001) Velocity analysis in the scattering-angle/azimuth domain. 7th International Congress of the Brazilian Geophysical Society , Salvador 2001-10-31 -
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2001) Application of parallel neural networks in reservoir characterisation from well logs. EAGE/SEG Research Workshop on Reservoir Rocks , Pau, France 2001-05-04 -
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PosterStovas, Alexey; Ursin, Bjørn. (2001) A new approximation of the reflection and transmission coefficients between two visco-elastic isotropic media. 63rd EAGE Conference, Amsterdam, Expanded abstracts, P-192 , Amsterdam 2001-06-15 -
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PosterBrandsberg-Dahl, Sverre; de Hoop, M.V.; Ursin, Bjørn. (2001) Imaging-inversion with focusing in dip. 63rd EAGE Conference, Amsterdam, Expanded abstracts, P-79 , Amsterdam 2001-06-15 -
2000
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, Maarten V.; Ursin, Bjørn. (2000) Focusing in dip and AVA compensation on scattering-angle/azimuth common image gathers. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
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Vitenskapelig foredragToverud, Tommy; Dimri, Vijay P.; Ursin, Bjørn. (2000) Deconvolution for scaling reflectivity. Association of Exploration Geophysicists, Seminar on Exploration Geophysics, Special Theme: Deep Water Exploration, 8-10 November, 2000 Goa, India , Goa, India, 8-10 November 2000
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Vitenskapelig foredragBhatt, Alpana; Helle, Hans B.; Ursin, Bjørn. (2000) Prediction of reservoir and fluid properties from well logs using artificial neural networks: A North Sea case study. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
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Vitenskapelig foredragSollid, Anders; Ursin, Bjørn. (2000) 2.5-D scattering-angle migration and AVA analysis. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
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Vitenskapelig foredragToverud, Tommy; Ursin, Bjørn. (2000) Estimation of viscoelastic parameters from zero-offset VSP data. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
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Vitenskapelig foredragSollid, Anders; Ursin, Bjørn. (2000) 2.5-D PP- and PS scattering-angle depth migration in TI media. SEG/EAGE Summer Research Workshop, Boise, October 1-6, 2000 , Boise, October 1-6, 2000
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Vitenskapelig foredragSchleicher, J.; Tygel, M.; Ursin, Bjørn; Bleistein, N.. (2000) The Kirchhoff-Helmholtz integral for anisotropic elastic media. EAGE 62nd Conference and Technical Exhibition , Glasgow, Scotland, 29 May - 2 June 2000
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Vitenskapelig foredragBauer, Christian; Ursin, Bjørn; Zhao, Huasheng; Fichler, Christine. (2000) Improved shallow gas interpretation combining seismic and gravity data. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000 2000-11-15 - 2000-11-16
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Vitenskapelig foredragPham, N.H.; Carcione, J.M.; Helle, H.B.; Ursin, Bjørn. (2000) Poro-viscolelastic representation of shaley sandstones. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
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Vitenskapelig foredragUrsin, Bjørn; Stovas, Alexey. (2000) Approximate reflection and transmission responses from a layered isotropic visco-elastic medium. Workshop on Seismic Signatures of Fluid Transport, Berlin, Germany - Hotel Steglitz International, February 27-29, 2000 , Berlin, Germany, February 27-29, 2000
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; Hokstad, Ketil; de Hoop, Maarten V.; Ursin, Bjørn. (2000) Maslov asymptotic Green's functions in heterogeneous anisotropic elastic media. Fifth International Conference on Mathematical and Numerical Aspects of Wave Propagation , Santiago de Compostella, July 10-14, 2000
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PosterStovas, Alexey; Ursin, Bjørn. (2000) Reflection and transmission coefficients between two visco-elastic TIV media. EAGE 62nd Conference and Technical Exhibition - Glasgow, Scotland, 29 May - 2 June 2000 , Glasgow, Scotland, 29 May - 2 June 2000
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PosterPorsani, Milton J.; Ursin, Bjørn. (2000) Deconvolution and wavelet estimation by using a genetic algorithm. 70th SEG Meeting, Calgary , Calgary, 2000
1999
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, Maarten V.; Ursin, Bjørn. (1999) Velocity analysis in the common scattering-angle/azimuth domain. 69th SEG Meeting, paper STHRY 1.3 , Houston, USA, October 31 - November 5, 1999
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, Maarten; Ursin, Bjørn. (1999) The sensitivity transform in the common scattering-angle/azimuth domain. EAGE 61st Conference and Technical Exhibition, paper 4-53 , Helsinki, Finland, 7-11 June 1999
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Vitenskapelig foredragUrsin, Bjørn; Stovas, Alexey. (1999) Approximate reflection and transmission responses from a layered isotropic elastic medium. EAGE 61st Conference and Technical Exhibition, paper 4-13 , Helsinki, Finland, 7-11 June 1999
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Vitenskapelig foredragToverud, Tommy; Ursin, Bjørn. (1999) Estimation of viscoelastic parameters from zero-offset VSP data. EAGE 61st Conference and Technical Exhibition, paper 4-29. The 6th International Congress of the Brazilian Geophysical Society, paper SBGf 119. , Helsinki, Finland, 7-11 June 1999 og Rio de Janeiro, Brazil, Aug. 1999
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Vitenskapelig foredragBrandsberg-Dahl, Sverre; de Hoop, Maarten V.; Ursin, Bjørn. (1999) A framework for DSO in the common scattering angle domain in the presence of multi-pathing. Fifth SIAM Conference on Mathematical and Computational Issues in Geosciences, MS21 , San Antonio, USA, 1999
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Vitenskapelig foredragUrsin, Bjørn; Tygel, Martin. (1999) Scattering, reflection and diffraction in anisotropic media. 4th International Conference on Theoretical and Computational Acoustics, C4-10 , Trieste, 1999
1998
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Vitenskapelig foredragCausse, Emmanuel; Ursin, Bjørn. (1998) Analysis of errors in constant velocity viscoacoustic migration. 60th Conference, European Association of Geoscientists and Engineers, Expanded Abstracts, P033 , [Mangler data]
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Vitenskapelig foredragToverud, Tommy; Ursin, Bjørn. (1998) Comparison of different seismic attenuation laws. 2nd International Conference and Technical Exhibition , Krakow, Polen, 1-4 September 1998
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Vitenskapelig foredragPorsani, Milton J.; Ursin, Bjørn. (1998) An optimality formulation for the design of mixed-phase inverse filters. 68th SEG Meeting , [Mangler data]
1997
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Vitenskapelig foredragCausse, Emmanuel; Mittet, Rune; Ursin, Bjørn. (1997) Preconditioned full-waveform inversion in general viscoacoustic media. EAGE 59th Conference and Technical Exhibition , Geneve
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Vitenskapelig foredragHelle, H.B.; Zhao, T.; Ursin, Bjørn; Carcione, J.. (1997) AVO analysis of the Kimmeridge clay formation. EAGE 59th Conference and Technical Exhibition , Geneve
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Vitenskapelig foredragUrsin, Bjørn; Tygel, Martin. (1997) Reciprocal volume and surface integrals for anisotropic elastic media. 5th International Congress of the Brazilian Geophysical Society , Sao Paulo
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Vitenskapelig foredragNovais, Amélia; Santos, Lúcio T.; Tygel, Martin; Ursin, Bjørn. (1997) A unified Born-Kirchhoff representation for acoustic media. 5th International Congress of the Brazilian Geophysical Society , Sao Paulo
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Vitenskapelig foredragHaugen, Geir Ultveit; Ursin, Bjørn. (1997) Analytic insight into PP and PS azimuthal AVO response for a vertically fractured reservoir. EAGE 59th Conference and Technical Exhibition , Geneve
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Vitenskapelig foredragEide, Alfhild Lien; Ursin, Bjørn; Omre, Henning. (1997) Stochastic simulation of porosity and acoustic impedance conditioned to seismic data and well data. Society of Exploration Geophysicists. 67th Annual Meeting , Dallas, Tex.
1996
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Vitenskapelig foredragBakke, Nils Erik; Ertresvåg, Eilif Tom; Ursin, Bjørn. (1996) Analysis of the seismic response from thin calcite cemented layers. EAGE 58th Conference and Technical Exhibition , [Mangler data]
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Vitenskapelig foredragLu, Guochun; Ursin, Bjørn; Lutro, Jan. (1996) Estimation of the sea bottom reflectivity function from multioffset seismic data. 66th SEG Meeting , [Mangler data]
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Vitenskapelig foredragHaugen, Geir U.; Ursin, Bjørn. (1996) AVO-A analysis of a vertically fractured reservoir underlying shale. 66th SEG Meeting , [Mangler data]
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Vitenskapelig foredragHaugen, Geir U.; Ursin, Bjørn. (1996) Elastic properties of rocks with fracture-induced anisotropy. Seismic anisotropy , [Mangler data]
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Vitenskapelig foredragPorsani, Milton J.; Ursin, Bjørn. (1996) Mixed-phase deconvolution of seismic and ground penetrating radar data. 66th SEG Meeting , [Mangler data]
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Vitenskapelig foredragPorsani, Milton J.; Ursin, Bjørn. (1996) Deconvolu#;c#~ao de fase mista de dados GPR. XXXIX Congresso Brasileiro de Geologia , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Haugen, Geir U.. (1996) Azimuthal AVO analysis of a vertically fractured reservoir. EAEG Winter Symposium , [Mangler data]
1995
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Vitenskapelig foredragShapiro, S.A.; Hubral, P.; Ursin, Bjørn. (1995) Approximate reflectivity and transmissivity for vertically inhomogeneous elastic media. EAGE 57th Conference and Technical Exhibition , [Mangler data]
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Vitenskapelig foredragShapiro, Sergei A.; Hubral, Peter; Ursin, Bjørn. (1995) Seismic-wave reflectivity/transmissivity for randomly-layered nonstationary sediments. 65th SEG Meeting , [Mangler data]
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Vitenskapelig foredragEkren, Bjørn O.; Ursin, Bjørn. (1995) Frequency-wavenumber constant-offset migration and AVO analysis. 65th SEG Meeting , [Mangler data]
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Vitenskapelig foredragPorsani, Milton J.; Ursin, Bjørn. (1995) Mixed-phase deconvolution. 65th SEG Meeting , [Mangler data]
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Vitenskapelig foredragHaugen, Geir Ultveit; Ursin, Bjørn. (1995) Elastic properties of rocks with fracture-induced anisotropy. Karlsruhe Workshop on Effective-Media Concepts for Seismic Wave Propagation , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Zhao, Huasheng. (1995) Modeling and inversion of the elasto-dynamic equations. , [Mangler data]
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Vitenskapelig foredragErlandsen, Espen; Tjåland, Egil; Ursin, Bjørn. (1995) Frequency-wavenumber image reconstruction of ultrasonic medical data. Nuclear Science Symposium and Medical Imaging Conference , San Francisco
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Vitenskapelig foredragLu, Guochun; Ursin, Bjørn. (1995) Improved traveltime tomography applied to two-phase ultrasonic imaging. 3rd SEGJ/SEG International Symposium , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Haugen, Geir Ultveit. (1995) Weak-contrast approximation of the elastic scattering matrix in anisotropic media. Workshop Meeting on Seismic Waves in Laterally Inhomogeneous Me dia IV , [Mangler data]
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Vitenskapelig foredragPorsani, Milton J.; Ursin, Bjørn. (1995) Decomposition of a mixed-phase causal signal. 1st Conference of the Latin American Geophysical Union , [Mangler data]
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Vitenskapelig foredragBakke, Nils; Ursin, Bjørn. (1995) Thin-bed AVO effects. EAEG 57th Conference and Technical Exhibition , [Mangler data]
1994
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Vitenskapelig foredragUrsin, Bjørn; Ekren, Bjørn Olav; Tjåland, Egil. (1994) Linearized elastic parameter sections. European Association of Exploration Geophysicists. 56. Meeting and Technical Exhibition , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn. (1994) Constrained total least squares estimation of the seismic reflection response. , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Zhao, Huasheng. (1994) Elastic inversion of a shallow seismic anomaly in the southern Barents Sea. EAEG 56. Meeting and Technical Exhibition , [Mangler data]
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Populærvitenskapelig foredragUrsin, Bjørn. (1994) Modelling and inversion of the elastic dynamic equations. , [Mangler data]
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Populærvitenskapelig foredragHaugen, Geir Ultveit; Ursin, Bjørn. (1994) Elastic properties of rocks with fracture-induced anisotropy. German-Norwegian Geoscientific Co-operation Project , [Mangler data]
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Populærvitenskapelig foredragUrsin, Bjørn. (1994) Modelling and inversion of the elastic dynamic equations. , [Mangler data]
1993
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Vitenskapelig foredragUrsin, Bjørn; et al., [Mangler fornavn]. (1993) Migracao de ondas planas em meios lateralmente heterogeneos. Sociedade Brasileira de Geofisica. Congresso Internacional (3 : 1993 : Rio de Janeiro). Expanded abstracts , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; et al., [Mangler fornavn]. (1993) Deconvolucao direcional do dominio tau-p. Sociedade Brasileira de Geofisica. Congresso Internacional (3 : 1993 : Rio de Janeiro). Expanded abstracts , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; et al., [Mangler fornavn]. (1993) Migracao "pre-stack" para ondas p elasticas combinando tecnicas de inversao, modelamento WKB e analises de foco. Sociedade Brasileira de Geofisica. Congresso Internacional (3 : 1993 : Rio de Janeiro). Expanded abstracts , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Tjåland, Egil. (1993) A strategy for approximating the Zoeppritz equations. European Association of Exploration Geophysicists. Meeting and Technical Exhibition (55 : 1993 : Stavanger). Extended abstracts of papers , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Ekren, Bjørn. (1993) Robust AVO analysis. Lofoten-seminaret (1993 : Svolvær) , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Tjåland, Egil; Ekren, Bjørn. (1993) Seismic lithology sections. European Association of Exploration Geophysicists. Meeting and Technical Exhibition (55 : 1993 : Stavanger). Workshop: Lithology predictions from seismic data , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Tjåland, Egil. (1993) Quantification of uncertainties in AVO analysis. European Association of Exploration Geophysicists. Meeting and Technical Exhibition (55 : 1993 : Stavanger). Extended abstracts of papers , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; et al., [Mangler fornavn]. (1993) Remocao dos efeitos superficie livre de dados acusticos. Sociedade Brasileira de Geofisica. Congresso Internacional (3 : 1993 : Rio de Janeiro). Expanded abstracts , [Mangler data]
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Vitenskapelig foredragUrsin, Bjørn; Ekren, Bjørn Olav; Tjåland, Egil. (1993) Seismic lithology sections. Sociedade Brasileira de Geofisica. Congresso Internacional (3 : 1993 : Rio de Janeiro). Expanded abstracts , [Mangler data]
1991
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Vitenskapelig foredragArntsen, Børge; Ursin, Bjørn; Landrø, Martin. (1991) Estimation of reflection coefficients from zero-offset field data. 53rd EAEG Meeting and Technical Exhibition , Florence, Italy, 26-30 Mai 1991
1985
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Vitenskapelig foredragArntsen, Børge; Ursin, Bjørn. (1985) Stable inversion of zero-offset data. Society of Exploration Geophysicsists Society of Exploration Geophysicist Conference and Exhibition , Washington 1985-10-03 - 1985-10-10