George A. Mcmechan

George A. Mcmechan's AcademicInfluence.com Rankings

George A. Mcmechan

Earth Sciences

#936

World Rank

#1446

Historical Rank

Geophysics

#109

World Rank

#132

Historical Rank

earth-sciences Degrees

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Earth Sciences

George A. Mcmechan's Degrees

PhD Geophysics University of California, Berkeley
Masters Geophysics University of California, Berkeley
Bachelors Physics University of California, Berkeley

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George A. Mcmechan's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

MIGRATION BY EXTRAPOLATION OF TIME‐DEPENDENT BOUNDARY VALUES* (1983) (715)
Analysis of dispersive waves by wave field transformation (1981) (498)
Acquisition and processing of wide-aperture ground-penetrating radar data (1992) (276)
Reverse-time migration of offset vertical seismic profiling data using the excitation-time imaging condition (1986) (242)
Imaging conditions for prestack reverse-time migration (2008) (200)
Elastic reverse-time migration (1987) (193)
Determination of source parameters by wavefield extrapolation (1982) (184)
EXAMPLES OF REVERSE-TIME MIGRATION OF SINGLE-CHANNEL, GROUND-PENETRATING RADAR PROFILES (1992) (169)
A seismic refraction survey of the Imperial Valley Region (1984) (167)
2D and 3D elastic wavefield vector decomposition in the wavenumber domain for VTI media (2010) (155)
Asymptotic ray theory and synthetic seismograms for laterally varying structures: theory and application to the imperial valley, California (1980) (154)
3-D elastic prestack, reverse-time depth migration (1994) (134)
Crustal structure of the Imperial Valley region. (1982) (129)
Seismic tomography in boreholes (1983) (126)
Scalar reverse‐time depth migration of prestack elastic seismic data (2001) (118)
Pre-stack reverse-time migration for elastic waves with application to synthetic offset vertical seismic profiles (1986) (117)
Vector-based elastic reverse time migration (2015) (109)
3-D tomographic imaging of near‐surface seismic velocity and attenuation (1992) (108)
Estimation of gas hydrate and free gas saturation, concentration, and distribution from seismic data (2002) (108)
True-amplitude prestack depth migration (2007) (104)
Ray‐based synthesis of bistatic ground‐penetrating radar profiles (1995) (103)
Inversion of refraction data by wave field continuation (1981) (102)
GPR characterization of buried tanks and pipes (1997) (100)
Multifrequency viscoacoustic modeling and inversion (1996) (99)
Five ways to avoid storing source wavefield snapshots in 2D elastic prestack reverse time migration (2015) (94)
Prestack scalar reverse-time depth migration of 3D elastic seismic data (2006) (94)
Detailed internal architecture of a fluvial channel sandstone determined from outcrop, cores, and 3-D ground-penetrating radar: Example from the middle Cretaceous Ferron Sandstone, east-central Utah (2001) (87)
Three-dimensional architecture of a coalesced, collapsed-paleocave system in the Lower Ordovician Ellenburger Group, central Texas (2004) (87)
Seismicity of western Canada (1978) (85)
Separating P- and S-waves in prestack 3D elastic seismograms using divergence and curl (2004) (84)
Numerical simulation of seismic responses of poroelastic reservoirs using Biot theory (1991) (81)
Imaging of earthquake sources in Long Valley Caldera, California, 1983 (1985) (80)
Ground penetrating radar imaging of a collapsed paleocave system in the Ellenburger dolomite, central Texas (1998) (78)
Elastic impedance inversion of multichannel seismic data from unconsolidated sediments containing gas hydrate and free gas (2004) (77)
Direct vector-field method to obtain angle-domain common-image gathers from isotropic acoustic and elastic reverse time migration (2011) (75)
Direct observation of a p-τ curve in a slant stacked wave field (1980) (74)
Creating virtual 3-D outcrop (2000) (73)
3D ACOUSTIC PRESTACK REVERSE‐TIME MIGRATION1 (1990) (73)
Estimation of resolution and covariance for large matrix inversions (1995) (72)
Use of ground-penetrating radar for 3-D sedimentological characterization of clastic reservoir analogs (1997) (71)
Excitation amplitude imaging condition for prestack reverse-time migration (2013) (69)
Phase‐field imaging: The electromagnetic equivalent of seismic migration (1987) (69)
Causes and reduction of numerical artefacts in pseudo-spectral wavefield extrapolation (1996) (65)
Forensic GPR: finite-difference simulations of responses from buried human remains (2000) (64)
2D frequency-domain elastic full-waveform inversion using time-domain modeling and a multistep-length gradient approach (2014) (64)
Range of Earth structure nonuniqueness implied by body wave observations (1973) (64)
Viscoelastic true-amplitude prestack reverse-time depth migration (2008) (63)
Wave-field transformations of vertical seismic profiles (1987) (61)
Amplitude balancing in separating P- and S-waves in 2D and 3D elastic seismic data (2011) (61)
Paleozoic continent-ocean transition in the Ouachita Mountains imaged from PASSCAL wide-angle seismic reflection-refraction data (1989) (60)
3-D Architecture and Sequence Stratigraphic Evolution of a Forced Regressive Top-Truncated Mixed-Influenced Delta, Cretaceous Wall Creek Sandstone, Wyoming, U.S.A. (2007) (60)
Application of ground-penetrating radar to investigation of near-surface fault properties in the San Francisco Bay region (1996) (59)
Empirical estimation of viscoelastic seismic parameters from petrophysical properties of sandstone (2001) (58)
Comparison of two viscoacoustic propagators for Q-compensated reverse time migration (2016) (58)
3-D characterization of a clastic reservoir analog: From 3-D GPR data to a 3-D fluid permeability model (2001) (57)
Algorithms for staggered‐grid computations for poroelastic, elastic, acoustic, and scalar wave equations (1997) (55)
Parsimonious 2-D poststack Kirchhoff depth migration (2001) (54)
Cross-hole tomography for strongly variable media with applications to scale model data (1987) (53)
Prediction of 3-D fluid permeability and mudstone distributions from ground-penetrating radar (GPR) attributes: Example from the Cretaceous Ferron Sandstone Member, east-central Utah (2002) (52)
Depth Limits in Body Wave Inversions (1972) (52)
GPR attenuation and its numerical simulation in 2.5 dimensions (1997) (51)
Ray equation migration of wide‐angle reflections from southern Alaska (1987) (49)
Comparison of two algorithms for isotropic elastic P and S vector decomposition (2015) (48)
Comparison of methods for extracting ADCIGs from RTM (2014) (46)
3-D finite difference modeling of elastic waves in borehole environments (1992) (45)
Integrated Study of Ancient Delta-Front Deposits, Using Outcrop, Ground-Penetrating Radar, and Three-Dimensional Photorealistic Data: Cretaceous Panther Tongue Sandstone, Utah, U.S.A. (2005) (45)
Depth filtering of first breaks and ground roll (1991) (44)
Parametric convolutional neural network-domain full-waveform inversion (2019) (44)
Efficient 3-D viscoelastic modeling with application to near‐surface land seismic data (1998) (43)
Composite memory variables for viscoelastic synthetic seismograms (1995) (42)
Hydraulic Effects of Shales in Fluvial-Deltaic Deposits: Ground-Penetrating Radar, Outcrop Observations, Geostatistics, and Three-Dimensional Flow Modeling for the Ferron Sandstone, Utah (2002) (41)
Common-image gathers in the incident phase-angle domain from reverse time migration in 2D elastic VTI media (2011) (41)
P-wave velocity structure of the Earth's crust beneath Vancouver Island (1983) (38)
Direct Estimation of the Bulk Modulus of the Frame In a Fluid-saturated Elastic Medium By Biot Theory (1990) (38)
3-D Tomographic Imaging of Near-surface Seismic Velocity And Attenuation (1991) (37)
2‐D full‐wavefield inversion for wide‐aperture, elastic, seismic data (1992) (37)
Tomographic imaging of velocity and Q, with application to crosswell seismic data from the Gypsy Pilot Site, Oklahoma (1997) (37)
Comparison of ray and Fourier methods for modeling monostatic ground‐penetrating radar profiles (1995) (36)
The Vancouver Island Seismic Project: a co-CRUST onshore–offshore study of a convergent margin (1983) (35)
Up/down and P/S decompositions of elastic wavefields using complex seismic traces with applications to calculating Poynting vectors and angle-domain common-image gathers from reverse time migrations (2016) (35)
Characterization of a coalesced, collapsed paleocave reservoir analog using GPR and well-core data (2002) (34)
tau-p Seismic Data for Viscoelastic Media - Part 2: Linearized INVERSION1 (1991) (34)
Estimation of a two‐dimensional seismic compressional‐wave velocity distribution by iterative tomographic imaging (1989) (34)
Elastic inversion of near- and postcritical reflections using phase variation with angle (2012) (34)
Implicit static corrections in prestack migration of common‐source data (1990) (33)
Wavelet-Radon domain dealiasing and interpolation of seismic data (2007) (33)
3-D two-point ray tracing for heterogeneous, weakly transversely isotropic media (1996) (33)
MIGRATION OF VSP DATA BY RAY EQUATION EXTRAPOLATION IN 2‐D VARIABLE VELOCITY MEDIA* (1986) (33)
Ground-penetrating radar study of North Padre Island: implications for barrier island internal architecture, model for growth of progradational microtidal barrier islands, and Gulf of Mexico sea-level cyclicity. (2010) (33)
Compensating Q effects in viscoelastic media by adjoint-based least-squares reverse-time migration (2018) (32)
Estimation of the spatial distribution of fluid permeability from surface and tomographic GPR data and core, with a 2‐D example from the Ferron Sandstone, Utah (2002) (32)
2-D ray‐based tomography for velocity, layer shape, and attenuation from GPR data (1999) (32)
Synthesis of amplitude-versus-offset variations in ground-penetrating radar data (2000) (32)
Acoustic prestack migration of cross-hole data (1988) (31)
A review of seismic acoustic imaging by reverse‐time migration (1989) (30)
Time-domain least-squares migration using the Gaussian beam summation method (2018) (30)
p-x imaging by localized slant stacks of t-x data (1983) (30)
2-D tomographic imaging of velocities in the Wichita uplift-Anadarko basin region of southwestern Oklahoma (1989) (29)
Separation of intrinsic and scattering Q based on frequency-dependent amplitude ratios of transmitted waves (1994) (29)
Feature-capturing full-waveform inversion using a convolutional neural network (2018) (29)
Three-dimensional facies architecture and three-dimensional calcite concretion distributions in a tide-influenced delta front, Wall Creek Member, Frontier Formation, Wyoming (2007) (29)
Two methods for determining geophone orientations from VSP data (2006) (29)
Processing, inversion, and interpretation of a 2D seismic data set from the North Viking Graben, North Sea (2003) (28)
Prestack processing of land data with complex topography (1995) (27)
Implementation of 3-D prestack Kirchhoff migration, with application to data from the Ouachita frontal thrust zone (1996) (27)
Multidirectional slowness vector for computing angle gathers from reverse time migration (2016) (27)
3D ACOUSTIC REVERSE-TIME MIGRATION1 (1989) (27)
3-D prestack full-wavefield inversion (1995) (26)
Wave field processing of data from a large-aperture seismic experiment in southwestern Oklahoma (1989) (26)
Elastic finite‐difference modelling and imaging for earthquake sources (1988) (26)
Implementation of prestack reverse time migration using frequency-domain extrapolation (2010) (26)
3-D viscoelastic anisotropic modeling of data from a multicomponent, multiazimuth seismic experiment in Northeast Texas (1995) (26)
Correlations between seismic parameters, EM parameters, and petrophysical/petrological properties for sandstone and carbonate at low water saturations (2003) (26)
Seismic impedance inversion and interpretation of a gas carbonate reservoir in the Alberta Foothills, western Canada (2003) (25)
Multidirectional-vector-based elastic reverse time migration and angle-domain common-image gathers with approximate wavefield decomposition of P- and S-waves (2018) (24)
Finite-difference modeling of borehole ground penetrating radar data (2002) (23)
Building 2-D stratigraphic and structure models from well log data and control horizons (2003) (23)
3-D prestack migration in anisotropic media (1993) (23)
Improving input/output performance in 2D and 3D angle-domain common-image gathers from reverse time migration (2015) (23)
Application of wave field continuation to the inversion of refraction data (1982) (23)
Determination of bedrock topography beneath the Greenland ice sheet by three‐dimensional imaging of radar sounding data (1989) (23)
Quick and accurate Q parameterization in viscoelastic wave modeling (2006) (22)
A ground-penetrating radar survey of a delta-front reservoir analog in the Wall Creek Member, Frontier Formation, Wyoming (2005) (22)
3D 3-C full-wavefield elastic inversion for estimating anisotropic parameters: A feasibility study with synthetic data (2009) (22)
Sensitivity of 3D 3C synthetic seismograms to anisotropic attenuation and velocity in reservoir models (2017) (22)
2.5D full‐wavefield viscoacoustic invercion1 (1995) (21)
Reply to comments by Banda & Deichmann (1983) (21)
3-D Acoustic Prestack Reverse-Time Migration (1989) (21)
Absorbing boundary conditions for 3-D acoustic and elastic finite-difference calculations (1989) (21)
Effects of free-surface topography on moving-seismic-source modeling (2006) (20)
Elastic least-squares reverse time migration in vertical transverse isotropic media (2019) (20)
Automatic editing of noisy seismic data (1989) (20)
Wavefield extrapolation of body waves for 3-D imaging of earthquake sources (1991) (19)
3-D seismic modeling for cracked media: Shear‐wave splitting at zero‐offset (2000) (19)
Source-Parameter Estimation by Full Waveform Inversion in 3D Heterogeneous, Viscoelastic, Anisotropic Media (2001) (19)
In situ 2-D and 3-D measurements of radiation patterns of half-wave dipole GPR antennas (2000) (19)
Turning wave migration by horizontal extrapolation (1997) (19)
Wave field processing of data from the 1986 Program for Array Seismic Studies of the Continental Lithosphere Ouachita Experiment (1989) (18)
3D imaging of a reservoir analogue in point bar deposits in the Ferron Sandstone, Utah, using ground‐penetrating radar (2004) (17)
3-D prestack Kirchhoff depth migration: From prototype to production in a massively parallel processor environment (1998) (17)
Automatic velocity picking from semblances with a new deep-learning regression strategy: Comparison with a classification approach (2020) (17)
AVO Inversion Using the Zoeppritz Equation for PP Reflections (2012) (16)
Removing smearing-effect artifacts in angle-domain common-image gathers from reverse time migration (2015) (16)
Noise‐adaptive filtering of seismic shot records (1988) (16)
Processing electromagnetic data in the time domain (1985) (16)
2-D pseudo-spectral viscoacoustic modeling in a distributed-memory multi-processor computer (1993) (15)
Wave extrapolation in the spatial wavelet domain with application to poststack reverse-time migration (1998) (15)
Comparison of effective stiffness and compliance for characterizing cracked rocks (2009) (15)
Elastic inversion for distribution of gas hydrate, with emphasis on structural controls (2006) (15)
Analysis and interpretation of seismic data from thin reservoirs: Northwest Java Basin, Indonesia (2002) (15)
Effects of attenuation and scattering on AVO measurements (1998) (15)
Nonlinear reverse‐time inversion of elastic offset vertical seismic profile data (1988) (15)
VISCOELASTIC SEISMIC RESPONSES OF 2D RESERVOIR MODELS (1993) (15)
Adaptive wavelet filtering of seismic data in the wavelet transform domain (2002) (15)
Polarized wavefield magnitudes with optical flow for elastic angle-domain common-image gathers (2016) (15)
Simulation of long‐period 3‐D elastic responses for whole earth models (1995) (14)
Tomographic estimation of the spatial distribution of statics (1996) (14)
Three-dimensional modeling and migration of seismic data using Fourier transforms (1988) (13)
AAPG Studies in Geology No. 50, (Section Title: Reservoir Permeability, Modeling, and Simulation Studies) Chapter 17: Three-Dimensional Architecture of Ancient Lower Delta-Plain Point Bars Using Ground-Penetrating Radar, Cretaceous Ferron Sandstone, Utah (2004) (13)
Acoustic modeling and migration of stacked cross-hole data (1988) (13)
3D, 9C seismic modeling and inversion of Weyburn Field data (2012) (13)
WEIGHTED STACKING OF SEISMIC DATA USING AMPLITUDE-DECAY RATES AND NOISE AMPLITUDES1 (1990) (13)
Resonant scattering by fluid-filled cavities (1982) (13)
3-D physical modeling and pseudospectral simulation of seismic common-source data volumes (1993) (13)
A two-dimensional post-stack seismic inversion for acoustic impedance of gas and hydrate bearing deep-water sediments within the continental slope of the ulleung Basin, East Sea, Korea (2013) (13)
The Range of Earth Structure Non-uniqueness Implied by Body-Wave Observations (1973) (13)
P- and S-decomposition in anisotropic media with localized low-rank approximations (2018) (13)
Synthetic finite-offset vertical seismic profiles for laterally varying media (1985) (12)
Two-dimensional elastic pseudo-spectral modeling of wide-aperture seismic array data with application to the Wichita Uplift-Anadarko Basin region of southwestern Oklahoma (1990) (12)
Parsimonious 2-D poststack Kirchhoff depth migrationParsimonious Kirchhoff Depth Migration (2001) (12)
3D common-reflection-point-based seismic migration velocity analysis (2006) (12)
Separation of Absorption and Dispersion Effects in Q-Compensated Viscoelastic RTM (2015) (12)
An amplitude constrained P-wave velocity profile for the upper mantle beneath the Eastern United States (1979) (12)
Modeling 3D porosity and permeability from GPR data in the Ellenburger Dolomite, central Texas (2011) (12)
Amplitude and phase versus angle for elastic wide-angle reflections in the τ‐p domain (2015) (12)
tau-p Seismic Data for Viscoelastic Media - Part 1: MODELLING1 (1991) (12)
Interpreting structural controls on hydrate and free-gas accumulation using well and seismic information from the Gulf of Mexico (2010) (11)
Elastic full-waveform inversion for earthquake source parameters (1996) (11)
Wavelet transform-based prestack multiscale Kirchhoff migration (2004) (11)
Three-Dimensional Seismic Interpretation from the Triangle Zone of the Frontal Ouachita Mountains and Arkoma Basin, Pittsburg County, Oklahoma (1996) (11)
Elastic Least-Squares Imaging in Tilted Transversely Isotropic Media for Multicomponent Land and Pressure Marine Data (2020) (11)
The dynamically correct Poynting vector formulation for acoustic media with application in calculating multidirectional propagation vectors to produce angle gathers from reverse time migration (2018) (11)
3D Modeling of Fracture-Induced Shear-Wave Splitting in the Southern California Basin (2005) (11)
CRP-based seismic migration velocity analysis (2006) (11)
Conductivity and scattering Q in GPR data: Example from the Ellenburger dolomite, central Texas (2012) (11)
Two algorithms to stabilize multidirectional poynting vectors for calculating angle gathers from reverse time migration (2017) (10)
Comparison of Methods For Modeling Phase Variation With Angle (2011) (10)
Effects of incomplete parameterization on full-wavefield viscoelastic seismic data for petrophysical reservoir properties (2007) (10)
A 3-D ground-penetrating radar and wavelet transform analysis of the morphology of shoreface deposits in the Upper Cretaceous Ferron Sandstone Member, Utah (2009) (10)
Application of two‐dimensional synthetic seismogram modeling to interpretation of wide‐angle seismic data from Wind River, Wyoming (1985) (10)
One‐pass 3-D seismic extrapolation with the 45° wave equation (1997) (10)
Effects of viscoelasticity on seismic wave propagation in fault zones, near-surface sediments, and inclusions (1993) (10)
Tomography of diffraction-based focusing operators (2012) (10)
Determination of salt proximity by wave-field imaging of transmitted energy (1988) (10)
Seismic refraction studies of the Imperial Valley region, California: profile models, a traveltime contour map, and a gravity model (1981) (10)
Quantized Ray Theory for Non-Zero Focal Depths (1976) (10)
Sensitivity of estimated elastic moduli to completeness of wave type, measurement type, and illumination apertures at a receiver in multicomponent VSP data (2012) (10)
Finite-difference modeling of borehole resonances (1988) (10)
Numerical simulation of multi-parameter seismic scattering (1996) (9)
Gas hydrate and free gas petroleum system in 3D seismic data, offshore Angola (2012) (9)
Parallel Butterworth and Chebyshev dip filters with applications to 3-D seismic migration (1999) (9)
Using downward continuation to reduce memory requirements in reverse-time migration (1992) (9)
Topographic corrections to slowness measurements in parsimonious migration of land data (2007) (9)
P-Wave Train Synthetic Seismograms Calculated by Quantized Ray Theory (1974) (9)
3-D transmission tomography using wide aperture data for velocity estimation for irregular salt bodies (1994) (9)
Imaging mining hazards within coalbeds using prestack wave equation migration of in-seam seismic survey data: A feasibility study with synthetic data (2007) (9)
Anisotropy and non-linear polarization of body waves in exponentially heterogeneous media (1995) (9)
Sensitivity of three-component 3D finite-difference elastic seismic modeling to inclusion parameters in HTI and TTI media with high inclusion density (2010) (9)
3-D acoustic modelling and imaging for earthquake data (1988) (9)
True amplitutde wave equation migration (2003) (9)
Analysis of reflection traveltimes in 3-D transversely isotropic heterogeneous media (1997) (9)
ANALYSIS OF ABSORPTION AND DISPERSION EFFECTS IN SYNTHETIC tau -p SEISMOGRAMS. (1987) (9)
AVA analysis and interpretation of a carbonate reservoir: northwest Java basin, Indonesia (2001) (8)
Elastic finite-difference modeling of cross-hole seismic data (1988) (8)
3-D pre-stack depth migration for salt and subsalt structures using reverse-VSP data (1992) (8)
Prestack elastic Kirchhoff migration for multicomponent seismic data in variable velocity media (2000) (8)
Computation of multi-attribute seismic wavefields by solution of the elastodynamic equations (1992) (8)
Parsimonious 3D post‐stack Kirchhoff depth migration (2005) (8)
Estimation of near-surface elastic parameters using multicomponent seismic data (1993) (8)
Inversion of a refraction wavefield by imaging in the p-x and v-z planes (1984) (8)
Analytic study of the geometrical spreading of P-waves in a layered transversely isotropic medium with a vertical symmetry axis (2000) (8)
Parsimonious migration of 3-C 3D VSP data (2007) (8)
Modeling sensitivity of 3D, 9-C wide azimuth data to changes in fluid content and crack density in cracked reservoirs (2010) (8)
Fast model-based migration velocity analysis and reflector shape estimation (2005) (8)
Modeling the viscoelastic effects in P-waves with modified viscoacoustic wave propagation (2019) (8)
Options for source wavefield reconstruction in prestack reverse-time migration (2009) (8)
The Greenland Gravitational Constant Experiment (1990) (8)
Angle domain common image gathers extracted from reverse time migrated images in isotropic acoustic and elastic media (2011) (8)
Analysis of up/down decomposed acoustic reverse time migration images (2016) (8)
From classical reflectivity-to-velocity inversion to full-waveform inversion using phase-modified and deconvolved reverse time migration images (2017) (8)
Phase Variation With Angle Inversion Using Plane And Spherical Waves (2011) (8)
Numerical modeling of seismic waves with a 3-D, anisotropic scalar-wave equation (1991) (7)
Elastic wave propagation in composite media (1992) (7)
Full-wavefield inversion of wide-aperture SH and Love wave data (1991) (7)
Parsimonious Kirchhoff Depth Migration (1999) (7)
Rigorous absorbing boundary conditions for 3-D one-way wave extrapolation (2000) (7)
Target-oriented linear least squares and nonlinear, trust-region Newton inversions of plane waves using AVA and PVA data for elastic model parameters (2016) (7)
Amplitude effect of the free surface in elastic reverse-time extrapolation (2008) (7)
Prestack 2D parsimonious Kirchhoff depth migration of elastic seismic data (2011) (6)
Mantle P-wave velocity structure beneath Antarctica (1981) (6)
Automatic picking of multi-mode dispersion curves using CNN-based machine learning (2020) (6)
Seismic evidence for crustal underplating beneath a large igneous province: The Sierra Leone Rise, equatorial Atlantic (2015) (6)
Combining multidirectional source vector with antitruncation-artifact Fourier transform to calculate angle gathers from reverse time migration in two steps (2017) (6)
Petro-seismic inversion for sandstone properties (2003) (6)
Low velocity zone reflections observed in geometrical shadows of refraction profiles (1982) (6)
Canadian earthquakes - 1969 (1974) (6)
Effects of diagenetic processes on seismic velocity anisotropy in near-surface sandstone and carbonate rocks (2004) (6)
Amplitude constraints and the inversion of Canadian Shield early rise explosion data (1975) (6)
Estimation of shear-velocity profiles by imaging of surface waves (1987) (6)
Solving 1-D inverse problems by Chebyshev polynomial expansion (1996) (6)
Synthetic seismogram modeling for the laterally varying structure in the central Imperial Valley. (1982) (5)
Vector Domain P and S decomposition in viscoelastic media (2015) (5)
THREE-DIMENSIONAL KINEMATIC MIGRATION IN VARIABLE VELOCITY MEDIA* (1987) (5)
TWO-DIMENSIONAL SYNTHETIC SEISMOGRAM MODELING OF WIDE-ANGLE SEISMIC DATA FROM THE WICHITA UPLIFT, OKLAHOMA. (1985) (5)
Propagation of teleseismic short-period P waves through the Earth's crust (1977) (5)
P-wave amplitudes and magnitudes between 10° and 35° (1974) (5)
Application of Sobolev gradient techniques to two-point ray tracing (2013) (5)
A stable Q compensation approach for adjoint seismic imaging by pseudodifferential scaling (2017) (5)
Spatial antialias filtering in the slowness-frequency domain (2009) (5)
Identification of shallow-water-flow sands by Vp/Vs inversion of conventional 3D seismic data (2005) (5)
Tomographic imaging of 3D seismic low‐velocity anomalies to simulate monitoring of enhanced oil recovery (1994) (5)
On the effect of recording aperture in migration of vertical seismic profile data (1986) (5)
Imaging of earthquake sources (1990) (5)
Polarization-based wave-equation migration velocity analysis in acoustic media (2012) (5)
Anisotropic parsimonious prestack depth migration (2013) (5)
Analysis of the Greenland icesheet experiment in terms of new gravitational forces (1989) (5)
Prediction and subtraction of coherent noise using a data driven time shift: A case study using field 2D and 3D GPR data (2014) (5)
Simulation of complete seismic surveys for evaluation of experiment design and processing (1996) (5)
Depth filtering for one-component seismic data (1991) (5)
3-D True Amplitude Prestack Depth Migration (2007) (5)
Common-reflection-point migration velocity analysis of 2D P-wave data from TTI media (2014) (5)
Inversion and interpretation of a 3D seismic data set from the Ouachita Mountains, Oklahoma (2009) (5)
Seismic modelling by Fresnel diffraction theory with application to wide-aperture data from SW Oklahoma (1989) (4)
Adaptive Feedback Convolutional‐Neural‐Network‐Based High‐Resolution Reflection‐Waveform Inversion (2022) (4)
Load balancing across a highly heterogeneous processor cluster using file status probes (2002) (4)
Amplitude compensation of seismic data: application to masking by shallow bright spots (1998) (4)
Application of image enhancement and pattern recognition algorithms to seismic reflection data (1983) (4)
Application of three-dimensional kinematic imaging to analysis of seismic reflection data from the Nevada Test Site (1984) (4)
Effects of source configuration on seismograms (1992) (4)
Generalized p—Δ curves (1976) (4)
Amplitude and Phase in Angle-Domain Common-Image Gathers (2012) (4)
Multiple prediction and subtraction from apparent slowness relations in 2D synthetic and field ocean-bottom cable data (2010) (4)
Wavelet-Radon domain de-aliasing and interpolation of seismic data (2004) (4)
P‐to‐S conversion for a thin anisotropic zone produced by vertical fracturing (1997) (4)
Low-velocity zone parameters as functions of focal depth (1977) (4)
Estimation of Near-surface Velocities By Tomography (1988) (3)
3-D GPR IMAGING OF COMPLEX STRATIGRAPHY WITHIN THE FERRON SANDSTONE, CASTLE VALLEY, UTAH (1995) (3)
Prestack Scalar Reverse-Time Depth Migration of Three-Dimensional Elastic Seismic Data (2005) (3)
Elastic reverse time migration with a combination of scalar and vector imaging conditions (2018) (3)
Multiple water reflections recorded at the ocean bottom (1978) (3)
Theoretical elastic stiffness tensor at high crack density (2010) (3)
Data- and model-domain up/down wave separation for reverse-time migration with free-surface multiples (2020) (3)
Stretch-free migration imaging condition (2013) (3)
Effects of Near-surface Structure, Scattering And Q On AVO Measurements. (1997) (3)
Low-velocity zone inversion by the Wiechert-Herglotz integral (1979) (3)
Elastic isotropic and anisotropic full wave-form inversions using automatic differentiation for gradient calculations in a framework of recurrent neural networks (2021) (3)
Adjoint-based least-squares reverse time migration for viscoelastic media (2017) (3)
3D eight-order elastic finite-difference modeling of refraction and strong-motion data from the Coyote Lake region, California (1996) (3)
Time-shift multi-direction slowness vector for computing angle gathers from reverse-time migration - Part II: Conjugate relation, complex-valued extrapolation, and time shift (2015) (3)
Imaging of Lateral Inhomogeneities Using Love Wave Data (1992) (3)
Parsimonious 3d prestack kirchhoff depthm igration (2009) (3)
Analysis of Absorption And Dispersion Effects In T - P Synthetic Seismograms (1984) (3)
Concurrent elastic inversion of Rayleigh and body waves with interleaved envelope-based and waveform-based misfit functions (2019) (3)
1-D seismic inversion of dual wavefield data: Part II, A Gulf of Mexico example (1994) (3)
Canadian Earthquakes 1968 (1976) (3)
Electrical and petrophysical modeling of Ferron Sandstone data (2006) (3)
Estimation of water/gas saturation and effective pressure from seismic velocities and quality factors as functions of frequency: Predictions of an empirical model (2003) (3)
Modeling the viscoelastic effects in P-waves using modified viscoacoustic wave propagation (2018) (3)
Sensitivity of viscoelastic reflection amplitude variation with angle to petrophysical properties (2001) (3)
Numerical simulation of seismic responses of poroelastic reservoirs using Biot theory : Geophysics V56, N3, March 1991, P328–339 (1991) (3)
Seismic inversion for the shape of a boundary between two layer stacks (1978) (3)
Wavefield inversion of seismic refraction data via the p—x plane (1983) (3)
Effects of Free Surface Topography On Moving Seismic Source Modeling (2006) (3)
Erratum: "CRP-based seismic migration velocity analysis" (Geophysics (2007) vol. 71 (3) (U21-U28)) (2007) (3)
Tomographic inversion over diffraction CFP operators in structurally complex areas (2010) (3)
3D scalar-wave absorbing boundary conditions with optimal coefficients in the frequency-space domain (2012) (2)
Nonlinear Reverse-time Inversion of Elastic Offset VSP Data (1988) (2)
Rate and state flow and deformation simulation of microseismicity with elastic emission wavefield synthesis (2016) (2)
Up/Down Image Separation in Elastic Reverse Time Migration (2020) (2)
An Efficient and Stable High‐Resolution Seismic Imaging Method: Point‐Spread Function Deconvolution (2022) (2)
Upper mantle P-wave model catalogue (1976) (2)
Wavefield Extrapolation In the Wavelet Domain With Application to Poststack Migration (1995) (2)
3-D Pseudospectral Prestack Reverse-Time Migration With Application to Reverse-VSP Data (1991) (2)
Parallel Implementation of 3-D Prestack Kirchhoff Migration With Application to Field Data (1995) (2)
Integrated 3-D Ground-Penetrating Radar, Outcrop, and Borehole Data Applied to Reservoir Characterization and Flow Simulation (2001) (2)
From classical reflectivity-to-impedance inversion to full-waveform impedance inversion using phase-modified, deconvolved reverse-time-migration image and rock-physics information (2017) (2)
3 D imaging of a reservoir analogue in point bar deposits in the Ferron Sandstone , Utah , using ground-penetrating radar (2)
Free-surface multiple prediction and subtraction from slowness relations in 2D and 3D synthetic data (2011) (2)
Elastic reverse time migration with an improved system of P/S wave mode separation in nonsmooth models (2017) (2)
A New Field Experiment in the Greenland Ice Cap to Test Newton's Inverse Square Law a (1989) (2)
Fast acoustic velocity tomography of focusing operators (2014) (2)
Accurate viscoelastic modeling in coordinate-transform velocity-stress formulations (2002) (2)
Reverse time migrations in transversely isotropic media: A comparison between acoustic and elastic wave equations with two wave mode separation algorithms (2019) (2)
Multifrequency Viscoacoustic Computations: Modeling And Inversion (1995) (2)
Analysis of Phase Variation With Ray Parameter in the τ- p Domain (2012) (2)
Elastic impedance inversion of multi-channel seismic data to detect gas hydrate and free-gas (2002) (2)
Is Shear-wave Splitting an Indicator of Seismic Anisotropy? (1995) (2)
Combining multidirectional-source vector with revised antileakage Fourier transform to calculate angle gathers from reverse time migration in two steps (2016) (2)
Simulation and Imaging of GPR Data Scattered by Reinforcing Bars in a Concrete Bridge Deck (1996) (2)
Approximating the Gauss–Newton Hessian Using a Space-Wavenumber Filter and its Applications in Least-Squares Seismic Imaging (2022) (2)
A new approach to pre-stack seismic processing (1995) (2)
The Offset Continuation In Complex Medium (1997) (2)
and 3-D ground-penetrating radar: Example from the middle Cretaceous Ferron Sandstone, east-central Utah (2001) (2)
Vector-based image condition for 3D elastic reverse time migrations (2016) (2)
Wiechert-Herglotz inversion as integration on a closed contour (1979) (2)
Synthesis of multicomponent quasi-P and converted quasi-P-S seismograms for intersecting fracture systems (2000) (2)
Line sources for seismic modeling by finite differences in inhomogeneous media (1987) (2)
RAY PARAMETERS AND FOCAL DEPTHS. (1981) (1)
Introduction to a Two‐Way Beam Wave Method and Its Applications in Seismic Imaging (2022) (1)
Linearized AVA inversion of PP and PS reflections from low-velocity targets using Zoeppritz equations (2014) (1)
Data-driven, target-oriented, kinematic prediction and subtraction of multiples from pure and mode-converted multicomponent data (2011) (1)
Phase Field Imaging of Electromagnetic Data (1985) (1)
3-D sedimentological and geophysical studies of clastic reservoir analogs: Facies architecture, reservoir properties, and flow behavior within delta front facies elements of the Cretaceous Wall Creek Member, Frontier Formation, Wyoming (2007) (1)
Canadian Earthquakes 1971 (1976) (1)
1-D seismic inversion of dual wavefield data: Part I, Nonuniqueness and stability (1994) (1)
Numerical Simulation of Wave Propagation In a Porous Elastic Solid Using Biot Theory (1989) (1)
CNN-boosted full-waveform inversion (2020) (1)
Multipathing in three‐parameter common‐image gathers from reverse‐time migration (2017) (1)
New Approach to Prestack Seismic Processing (1992) (1)
3-C synthetic seismograms for 3-D anisotropic elastic media by polygonal raytracing (1997) (1)
Multidirectional-vector-based elastic reverse time migration and angle-domain common-image gathers with approximate wavefield decomposition of P and S waves (2017) (1)
Time-shift multi-direction slowness vector for computing angle gathers from reverse-time migration - Part I: Multi-direction slowness vector (2015) (1)
Seismic imaging conditions (1994) (1)
Synthetic data tests of 3D full-wavefield inversion for P-wave anisotropic parameter estimation in flat layered VTI, HTI and orthorhombic media (2009) (1)
Wavenumber correction for the recording group effects in the seismic data (2008) (1)
Topology of ray surfaces in low-velocity zones (1979) (1)
On: “Phase-field imaging: The electromagnetic equivalent of seismic migration” discussion and reply (1988) (1)
Prestack full-wave inversion of seismic data with strong multiple reflections (1996) (1)
Modeling of zero-offset reflection profiles with asymptotic ray theory (1981) (1)
True amplitude recovery in reverse-time extrapolation of plane and spherical waves (2018) (1)
Wavelet-transform Based Prestack Multi-scale Kirchhoff Migration (2002) (1)
Ray-based synthesis of bistatic ground-penetrating radar profiles (1994) (1)
Tomographic Imaging of the Spatial Distribution of Statics (1995) (1)
p-Δ curves for a point source lying on a boundary (1977) (1)
Mantle Structure and Short Period Body Wave Spectra at Intermediate Epicentral Distances (1976) (1)
Seismic Studies of Deep Crustal Structure In Southwestern Oklahoma (1985) (1)
Sedimentological and geophysical studies of clastic reservoir analogs: Methods, applications and developments of ground-penetrating radar for determination of reservoir geometries in near-surface settings. Final report (1998) (1)
From classical reflectivity-to-velocity inversion to full-waveform inversion using phase-modified and deconvolved reverse-time-migration images (2016) (1)
On application issues of automatic dispersion curves picking by machine learning (2021) (1)
3-D Prestack Kirchhoff Depth Migration: From Prototype to Production In a MPP Environment. (1996) (1)
Weighted Stacking of Seismic Data Using Amplitude Decay Rates And Noise Amplitudes (1989) (1)
Shear-wave Splitting At Vertical Incidence In Media Containing Intersecting Fracture Systems (1998) (1)
Fast 3-D Common Reflection-point Based Tomographic Seismic Migration Velocity Analysis (2005) (1)
Elastic full-waveform inversion with recurrent neural networks (2020) (1)
Reflectivity wavefield inversion of synthetic data from elastic and viscoelastic anisotropic flat-layered, shale-bounded, fractured sandstone reservoir models (2013) (0)
Angle- and azimuth-domain common-image gathers by reverse time migration for 3D elastic isotropic media (2020) (0)
Estimation of effective pressure and water saturation by viscoelastic inversion of synthetic time-lapse seismic data for a gas sandstone reservoir (2005) (0)
Multiparameter inversion for viscoelastic media (1988) (0)
Estimating Subsurface P- and S-wave Reflectivities using Elastic TTI Least-Squares Reverse-Time Migration (2021) (0)
Source-domain full waveform inversion (2019) (0)
Demonstration of a full volume 3D Pre-Stack Depth Migration in the using Massively Parallel Processor (MPP) Technology. Garden Banks Area (1996) (0)
Solutions of multipathing in incident angle, depth, and image time domain (2015) (0)
Canadian earthquakes - 1970 (1975) (0)
Sensitivity of anisotropic attenuation and velocity to reservoir parameters in fractured media (2014) (0)
To: “Multidirectional slowness vector for computing angle gathers from reverse time migration,” Chen Tang and George A. McMechan, Geophysics, 81, no. 2, S55–S68, doi.org/10.1190/geo2015-0134.1. (2018) (0)
Angle-domain least-squares Gaussian beam migration (2021) (0)
Analysis of microseismic noise experiment in a geothermal area (Meager Creek) (1977) (0)
Localized low-rank approximation with application in anisotropic wavefield P-S decomposition (2017) (0)
Kinematic Properties of Primary Converted Rays Produced at a Single Boundary (1984) (0)
Antialias Spatial Filtering: A Slowness-frequency Approach (2008) (0)
Identification of SWF Sands by Elastic Inversion of Conventional 3D Seismic Data (2003) (0)
CNN-based gradient-free multiparameter reflection full-waveform inversion (2021) (0)
On Frequency and Resolution of Viscoelastic Least-Squares Reverse Time Migration (2019) (0)
Turning-wave Migration By Horizontal Extrapolation (1995) (0)
Source-domain full-waveform inversions (2020) (0)
Efficient Love wave modelling via Sobolev gradient steepest descent (2016) (0)
Generation of damped response spectra from an undamped response specfrum by constrained interpolation (1977) (0)
Automated dispersion curve picking using multi-attribute convolutional-neural-network based machine learning (2022) (0)
3-D tomographic model study (1992) (0)
Short Note Using downward continuation to reduce memory requirements in reverse-time migration (1992) (0)
One-pass 3-D Depth Migration Without Splitting Error Compensation (1997) (0)
4. Differential Techniques (2008) (0)
Geologic incoherence index for seismic inversion (2013) (0)
Surface Boundary Conditions in Reverse-Time Extrapolations of Three-Dimensional, Three-Component Elastic Seismic Data (2006) (0)
A New Method for Normal Mode Problems: Sobolev Gradient Steepest Descent (2012) (0)
To: “GPR attenuation and its numerical simulation in 2.5‐dimensions,” T. Xu and G. A. McMechan (March‐April 1997 GEOPHYSICS, 62, p. 403–414) (1997) (0)
A spatially constrained divisive hierarchical k-means clustering to capture prior features from migration velocity model to build training model set for deep-learning LSRTM (2021) (0)
Common reflection point migration velocity analysis with anisotropic parsimonious depth migration (2014) (0)
Simultaneous inversion of 3D seismic data from a wolfcampian limestone reservoir in the eastern shelf of the Permian Basin, U.S.A (2012) (0)
Full wavefield inversion to estimate impact-source orientation from multicomponent land seismic data (2002) (0)
Re-weighted variational full waveform inversions (2023) (0)
DECONVOLUTION AND SYNTHESIS OF MULTI-SEGMENT SEISMIC TRACES (1979) (0)
Simulation and analysis of 1991 U.S. Geological Survey refraction data from the New Madrid Seismic Zone (1996) (0)
Acoustic waves: a finite difference film. (1983) (0)
Elastic multi-parameter full-waveform inversion for surface wave modelling and attenuation (2020) (0)
3D ray-based synthesis of zero-offset P-wave and P-to-S converted wave sections for anisotropic media (2005) (0)
“CRP-based seismic migration velocity analysis,” Weihong Fei and George A. McMechan, GEOPHYSICS, 71, no. 3, U21–U28 (2007) (0)
4-D Tomographic Monitoring of Enhanced Oil Recovery (1991) (0)
Mitigating Velocity Errors in Least-Squares Imaging Using Angle-Dependent Forward and Adjoint Gaussian Beam Operators (2021) (0)
3-d Seismic Imaging on Parallel Computers (0)
Solving 1-D Inverse Problems By Chebyshev Polunomial Expansion (1995) (0)
Tomographic Q: A case study (1992) (0)
Implicit static corrections in 3-D pre-stack depth migration of common-source data (1992) (0)
Numerical investigation of an analytic solution of a multi-dimensional Lippman-Schwinger seismic inverse problem (1995) (0)
Partial fast Fourier transform (PFFT) to improve the computer efficiency of hybrid-domain FWI (2016) (0)
Convolutional-neural-network-based reflection-waveform inversion (2022) (0)
The dynamically correct Poynting vector for acoustic media with application in calculating multidirectional-propagation vectors to produce angle gathers from reverse time migration (2018) (0)
CNN-tuned spatial filters for P- and S-wave decomposition and applications in elastic imaging (2021) (0)
Elastic Inversion of Seismic Data for Properties of Hydrated Sediments (2004) (0)
Surface Wave Attenuation Using Elastic Multi-Parameter Full Waveform Inversion (2020) (0)
A component connection environment for scientific software (ACCESS), with applications to seismic data processing (1993) (0)
Data Processing System Based On Wave Field Transformation Sequences With Application to Vertical Seismic Profiles (1986) (0)
rho -chi imaging by localized slant stacks of TAU -chi data. (1983) (0)
Estimation of fracture height using microseismicity associated with hydraulic fracturing (1998) (0)
Demonstration of a full volume 3D pre-stack depth migration in the Garden Banks area using massively parallel processor (MPP) technology (1996) (0)
In-situ 2-D and 3-D measurements of directivity patterns of half-wave dipole GPR antennas (2000) (0)
Application of Concurrent Full Waveform Inversion for Elastic Properties Using Rayleigh and Body Waves in Data from the Arid 2D Land Model (2020) (0)
Estimating anisotropic seismic velocity from 3-component seismic CMP and borehole data from the Barinas Basin, Southwest Venezuela (2004) (0)
Effects of incomplete parameterization on inversion of full wavefield viscoelastic seismic data for petrophysical reservoir properties (2004) (0)
Nonlinear optimal approximation of square root for the one‐way wave equation (2009) (0)
3-D FACIES ARCHITECTURE AND CALCITE CONCRETION DISTRIBUTIONS IN A TIDE-INFLUENCED DELTA FRONT, WALL CREEK MEMBER, FRONTIER FORMATION, WYOMING (0)
Up/down separation of P-P and P-S images for elastic reverse time migration (2019) (0)
Implicit Static Corrections In Prestack Reverse-Time Migration (1989) (0)
Absorbing Boundary Conditions For 3-D One-way Wave Extrapolation (1997) (0)
Correction to: Mitigating Velocity Errors in Least-Squares Imaging Using Angle-Dependent Forward and Adjoint Gaussian Beam Operators (2022) (0)
Reply to M.S. Zhdanov and M.A. Frenkel by the authors (1988) (0)
High resolution geophysical investigations for sedimentological and hydrological environments of Gulf Coast barrier islands (2013) (0)
Two methods for geophone rotations for VSP data (2003) (0)
Reply to the discussion (2004) (0)
Three Dimensional Visualization of Reservoir Outcrop Analogues Using Ground Penetrating Radar: ABSTRACT (1996) (0)

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What Schools Are Affiliated With George A. Mcmechan?

George A. Mcmechan is affiliated with the following schools:

University of Texas at Dallas