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English

Bjørn Ursin

Bjørn Ursin

Professor emeritus
Institutt for elektroniske systemer

bjorn.ursin@ntnu.no
73594978 +4799454552 Elektro D/B2, B229, Gløshaugen, O.S. Bragstads plass 2b
Publikasjoner Formidling

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2023

  • 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

  • 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

  • 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

2020

  • 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

2019

  • 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

  • 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

  • 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
  • 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

  • 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

  • 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

  • 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

2013

  • 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
  • Wiik, Torgeir; Ursin, Bjørn. (2013) Modeling and Inversion of Marine Electromagnetic Data. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU (2013:67)
    Doktorgradsavhandling
  • 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

2012

  • 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
  • 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

  • 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
  • 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

  • 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

  • Vitenskapelig foredrag
    Iversen, 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
  • Vitenskapelig foredrag
    Iversen, 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

  • Vitenskapelig foredrag
    Iversen, 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
  • Vitenskapelig foredrag
    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 SEG Annual Meeting , Anaheim 2018-10-14 - 2018-10-19
  • Vitenskapelig foredrag
    Iversen, 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
  • Faglig foredrag
    Jakobsen, 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

  • Faglig foredrag
    Jakobsen, 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
  • Vitenskapelig foredrag
    Iversen, 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 -
  • Vitenskapelig foredrag
    Jakobsen, 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

  • Vitenskapelig foredrag
    Silva, 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
  • Vitenskapelig foredrag
    Favretto-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

  • Vitenskapelig foredrag
    Favretto-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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Favretto-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
  • Vitenskapelig foredrag
    Favretto-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

  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Jakobsen, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Tantsereva, 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
  • Vitenskapelig foredrag
    Jakobsen, Morten; Ursin, Bjørn. (2013) Nonlinear seismic waveform inversion. KSEG KSEG Symposium on Geophysics for Discovery and Exploration 2013-09-19 - 2013-09-21

2012

  • Vitenskapelig foredrag
    Favretto-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
  • Vitenskapelig foredrag
    Porsani, 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
  • Vitenskapelig foredrag
    Tantsereva, 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
  • Vitenskapelig foredrag
    Andrade, 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
  • Vitenskapelig foredrag
    Jakobsen, Morten; Ursin, Bjørn. (2012) The nonlinear waveform inversion problem. Lofotenseminaret i petroleumsgeofysikk , Henningsvær Bryggehotell 2012-08-15 - 2012-08-17
  • Vitenskapelig foredrag
    Jakobsen, 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
  • Vitenskapelig foredrag
    Jakobsen, 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

  • Vitenskapelig foredrag
    Pestana, 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
  • Vitenskapelig foredrag
    Pestana, 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
  • Vitenskapelig foredrag
    Abbad, 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
  • Vitenskapelig foredrag
    Jakobsen, 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

  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Stovas, 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

  • Vitenskapelig foredrag
    Ayzenberg, 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
  • Vitenskapelig foredrag
    Amundsen, 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
  • Vitenskapelig foredrag
    Wiik, Torgeir; Ursin, Bjørn; Hokstad, Ketil. (2009) Frequency Domain EM Modeling in Conductive TIV Media. EAGE Conference , Amsterdam 2009-06-08 - 2009-06-11
  • Vitenskapelig foredrag
    Malcolm, A.; Ursin, Bjørn; de Hoop, M.V.. (2009) Imaging with multiply scattered seismic waves. Waves 2009 , Pau 2009-06-15 - 2009-06-19
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Wang, 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
  • Vitenskapelig foredrag
    Tyapkin, 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
  • Vitenskapelig foredrag
    Porsani, 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
  • Vitenskapelig foredrag
    Stovas, 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
  • Vitenskapelig foredrag
    Porsani, 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

  • Vitenskapelig foredrag
    Arntsen, 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
  • Vitenskapelig foredrag
    Stovas, 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
  • Vitenskapelig foredrag
    Malcolm, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Alerini, 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
  • Vitenskapelig foredrag
    Ayzenberg, 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 -
  • Vitenskapelig foredrag
    Ayzenberg, 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
  • Vitenskapelig foredrag
    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. SEG 78th SEG Meeting , Las Vegas 2008-11-09 - 2008-11-14

2007

  • Vitenskapelig foredrag
    Ursin, Bjørn; Carcione, J.M.. (2007) Seimic-Velocity/Electrical-Conductivity Relations. EGM EGM 2007 International Workshop , Capri 2007-04-15 - 2007-04-18
  • Vitenskapelig foredrag
    Løseth, 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
  • Vitenskapelig foredrag
    Nordskag, 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
  • Vitenskapelig foredrag
    Pedersen, 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
  • Vitenskapelig foredrag
    Alerini, 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
  • Vitenskapelig foredrag
    Rabben, 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
  • Vitenskapelig foredrag
    Tyapkin, 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
  • Vitenskapelig foredrag
    Rabben, 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
  • Vitenskapelig foredrag
    Hoang, 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
  • Vitenskapelig foredrag
    Ayzenberg, 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
  • Vitenskapelig foredrag
    Stovas, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Abbad, 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
  • Poster
    Malcolm, 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
  • Poster
    Stovas, 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

  • Vitenskapelig foredrag
    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. EAGE 68th EAGE Conference & Exhibition , Wien 2006-06-12 - 2006-06-15
  • Vitenskapelig foredrag
    Pedersen, 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
  • Vitenskapelig foredrag
    Nag, 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
  • Vitenskapelig foredrag
    Tyapkin, 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

  • Vitenskapelig foredrag
    Ursin, Bjørn; Stovas, Alexey. (2005) Traveltime approximations for a layered transversely isotropic medium. Anisotropy Workshop , Praha 2005-06-13 - 2005-06-17
  • Vitenskapelig foredrag
    Stovas, 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
  • Vitenskapelig foredrag
    Ursin, 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

  • Vitenskapelig foredrag
    Foss, 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
  • Vitenskapelig foredrag
    Stovas, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Foss, 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

  • Vitenskapelig foredrag
    Bhatt, 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 -
  • Vitenskapelig foredrag
    Stovas, 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 -
  • Vitenskapelig foredrag
    Foss, 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

  • Vitenskapelig foredrag
    Helle, 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 -
  • Vitenskapelig foredrag
    Bhatt, 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 -
  • Vitenskapelig foredrag
    Brandsberg-Dahl, Sverre; Ursin, Bjørn; de Hoop, M.V.. (2002) Angle tomography. 64th EAGE Conference & Exhibition, Extended abstracts, B-22 , Florence, Italy 2002-05-30 -
  • Vitenskapelig foredrag
    Bhatt, 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 -
  • Vitenskapelig foredrag
    Stovas, 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 -
  • Vitenskapelig foredrag
    Ursin, 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 -
  • Vitenskapelig foredrag
    Ursin, 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

  • Vitenskapelig foredrag
    Brandsberg-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 -
  • Vitenskapelig foredrag
    Bhatt, 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 -
  • Vitenskapelig foredrag
    Brandsberg-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 -
  • Vitenskapelig foredrag
    Bhatt, 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 -
  • Poster
    Stovas, 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 -
  • Poster
    Brandsberg-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

  • Vitenskapelig foredrag
    Brandsberg-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
  • Vitenskapelig foredrag
    Toverud, 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
  • Vitenskapelig foredrag
    Bhatt, 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
  • Vitenskapelig foredrag
    Sollid, Anders; Ursin, Bjørn. (2000) 2.5-D scattering-angle migration and AVA analysis. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
  • Vitenskapelig foredrag
    Toverud, Tommy; Ursin, Bjørn. (2000) Estimation of viscoelastic parameters from zero-offset VSP data. Norwegian Petroleum Research Seminar , Bergen, 15-16 November 2000
  • Vitenskapelig foredrag
    Sollid, 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
  • Vitenskapelig foredrag
    Schleicher, 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
  • Vitenskapelig foredrag
    Bauer, 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
  • Vitenskapelig foredrag
    Pham, 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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Brandsberg-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
  • Poster
    Stovas, 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
  • Poster
    Porsani, Milton J.; Ursin, Bjørn. (2000) Deconvolution and wavelet estimation by using a genetic algorithm. 70th SEG Meeting, Calgary , Calgary, 2000

1999

  • Vitenskapelig foredrag
    Brandsberg-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
  • Vitenskapelig foredrag
    Brandsberg-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
  • Vitenskapelig foredrag
    Ursin, 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
  • Vitenskapelig foredrag
    Toverud, 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
  • Vitenskapelig foredrag
    Brandsberg-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
  • Vitenskapelig foredrag
    Ursin, Bjørn; Tygel, Martin. (1999) Scattering, reflection and diffraction in anisotropic media. 4th International Conference on Theoretical and Computational Acoustics, C4-10 , Trieste, 1999

1998

  • Vitenskapelig foredrag
    Causse, 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]
  • Vitenskapelig foredrag
    Toverud, Tommy; Ursin, Bjørn. (1998) Comparison of different seismic attenuation laws. 2nd International Conference and Technical Exhibition , Krakow, Polen, 1-4 September 1998
  • Vitenskapelig foredrag
    Porsani, Milton J.; Ursin, Bjørn. (1998) An optimality formulation for the design of mixed-phase inverse filters. 68th SEG Meeting , [Mangler data]

1997

  • Vitenskapelig foredrag
    Causse, Emmanuel; Mittet, Rune; Ursin, Bjørn. (1997) Preconditioned full-waveform inversion in general viscoacoustic media. EAGE 59th Conference and Technical Exhibition , Geneve
  • Vitenskapelig foredrag
    Helle, H.B.; Zhao, T.; Ursin, Bjørn; Carcione, J.. (1997) AVO analysis of the Kimmeridge clay formation. EAGE 59th Conference and Technical Exhibition , Geneve
  • Vitenskapelig foredrag
    Ursin, Bjørn; Tygel, Martin. (1997) Reciprocal volume and surface integrals for anisotropic elastic media. 5th International Congress of the Brazilian Geophysical Society , Sao Paulo
  • Vitenskapelig foredrag
    Novais, 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
  • Vitenskapelig foredrag
    Haugen, 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
  • Vitenskapelig foredrag
    Eide, 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

  • Vitenskapelig foredrag
    Bakke, 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]
  • Vitenskapelig foredrag
    Lu, Guochun; Ursin, Bjørn; Lutro, Jan. (1996) Estimation of the sea bottom reflectivity function from multioffset seismic data. 66th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Haugen, Geir U.; Ursin, Bjørn. (1996) AVO-A analysis of a vertically fractured reservoir underlying shale. 66th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Haugen, Geir U.; Ursin, Bjørn. (1996) Elastic properties of rocks with fracture-induced anisotropy. Seismic anisotropy , [Mangler data]
  • Vitenskapelig foredrag
    Porsani, Milton J.; Ursin, Bjørn. (1996) Mixed-phase deconvolution of seismic and ground penetrating radar data. 66th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Porsani, Milton J.; Ursin, Bjørn. (1996) Deconvolu#;c#~ao de fase mista de dados GPR. XXXIX Congresso Brasileiro de Geologia , [Mangler data]
  • Vitenskapelig foredrag
    Ursin, Bjørn; Haugen, Geir U.. (1996) Azimuthal AVO analysis of a vertically fractured reservoir. EAEG Winter Symposium , [Mangler data]

1995

  • Vitenskapelig foredrag
    Shapiro, S.A.; Hubral, P.; Ursin, Bjørn. (1995) Approximate reflectivity and transmissivity for vertically inhomogeneous elastic media. EAGE 57th Conference and Technical Exhibition , [Mangler data]
  • Vitenskapelig foredrag
    Shapiro, Sergei A.; Hubral, Peter; Ursin, Bjørn. (1995) Seismic-wave reflectivity/transmissivity for randomly-layered nonstationary sediments. 65th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Ekren, Bjørn O.; Ursin, Bjørn. (1995) Frequency-wavenumber constant-offset migration and AVO analysis. 65th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Porsani, Milton J.; Ursin, Bjørn. (1995) Mixed-phase deconvolution. 65th SEG Meeting , [Mangler data]
  • Vitenskapelig foredrag
    Haugen, 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]
  • Vitenskapelig foredrag
    Ursin, Bjørn; Zhao, Huasheng. (1995) Modeling and inversion of the elasto-dynamic equations. , [Mangler data]
  • Vitenskapelig foredrag
    Erlandsen, Espen; Tjåland, Egil; Ursin, Bjørn. (1995) Frequency-wavenumber image reconstruction of ultrasonic medical data. Nuclear Science Symposium and Medical Imaging Conference , San Francisco
  • Vitenskapelig foredrag
    Lu, Guochun; Ursin, Bjørn. (1995) Improved traveltime tomography applied to two-phase ultrasonic imaging. 3rd SEGJ/SEG International Symposium , [Mangler data]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Porsani, Milton J.; Ursin, Bjørn. (1995) Decomposition of a mixed-phase causal signal. 1st Conference of the Latin American Geophysical Union , [Mangler data]
  • Vitenskapelig foredrag
    Bakke, Nils; Ursin, Bjørn. (1995) Thin-bed AVO effects. EAEG 57th Conference and Technical Exhibition , [Mangler data]

1994

  • Vitenskapelig foredrag
    Ursin, Bjørn; Ekren, Bjørn Olav; Tjåland, Egil. (1994) Linearized elastic parameter sections. European Association of Exploration Geophysicists. 56. Meeting and Technical Exhibition , [Mangler data]
  • Vitenskapelig foredrag
    Ursin, Bjørn. (1994) Constrained total least squares estimation of the seismic reflection response. , [Mangler data]
  • Vitenskapelig foredrag
    Ursin, Bjørn; Zhao, Huasheng. (1994) Elastic inversion of a shallow seismic anomaly in the southern Barents Sea. EAEG 56. Meeting and Technical Exhibition , [Mangler data]
  • Populærvitenskapelig foredrag
    Ursin, Bjørn. (1994) Modelling and inversion of the elastic dynamic equations. , [Mangler data]
  • Populærvitenskapelig foredrag
    Haugen, Geir Ultveit; Ursin, Bjørn. (1994) Elastic properties of rocks with fracture-induced anisotropy. German-Norwegian Geoscientific Co-operation Project , [Mangler data]
  • Populærvitenskapelig foredrag
    Ursin, Bjørn. (1994) Modelling and inversion of the elastic dynamic equations. , [Mangler data]

1993

  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, Bjørn; Ekren, Bjørn. (1993) Robust AVO analysis. Lofoten-seminaret (1993 : Svolvær) , [Mangler data]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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]
  • Vitenskapelig foredrag
    Ursin, 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

  • Vitenskapelig foredrag
    Arntsen, 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

  • Vitenskapelig foredrag
    Arntsen, 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
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