๐โญ Center Chief
Norman Ricker
Center Head
๐ก Ricker wavelet, seismic reflection theory
โ Intelligent Geophysical Exploration Division
Seismic Exploration & Imaging Center
Develops advanced seismic acquisition, processing, and imaging technologies for high-resolution subsurface characterization, specializing in reflection seismology, velocity model building, and structural imaging for oil and gas exploration and CO2 storage.
โ๏ธ GeoVerse System Administration Division๐ฅ๏ธ AI & Computing Sciences Division๐ฌ Basic Sciences Divisionโก Intelligent Geophysical Exploration Division๐ข๏ธ Resource & Energy Engineering Division๐ Applied Geoscience Solutions Division๐ผ Economics, Policy & Strategy Division๐ Education & Training Development Division๐ Innovation & International Collaboration Division
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๐Jack Oliver
Researcher
๐ก Co-founded COCORP, applying petroleum-exploration seismic reflection profiling to image the deep continental crust for the first time; co-authored the foundational 1968 plate-tectonics paper 'Seismology and the New Global Tectonics'
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Norman Bleistein
Researcher
๐ก Co-developed (with Jack Cohen) true-amplitude Kirchhoff migration/inversion theory, unifying seismic imaging and quantitative inversion, foundational to modern FWI and migration-inversion workflows
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Cecil Howard Green
Researcher
๐ก Co-founded Geophysical Service Inc. (with Karcher and others), the company that became Texas Instruments, building the industrial and instrumentation infrastructure of exploration seismology
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Sidney Kaufman
Researcher
๐ก Conducted the world's first offshore seismic survey for oil (1940s) at Shell Oil, and co-initiated the COCORP deep continental reflection profiling consortium
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Reginald Fessenden
Researcher
๐ก Patented the first practical sonar/echo-sounding system (1914), the acoustic-source and underwater-signal foundation later adapted for marine seismic exploration
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐C. Hewitt Dix
Researcher
๐ก Derived the Dix equation (1955) relating interval velocity to stacking (NMO) velocity from reflection traveltimes, the foundational formula of seismic velocity analysis
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Frank Rieber
Researcher
๐ก Developed variable-density photographic recording for seismic data (1936), adapting sound-on-film technology to enable reproducible, automated seismic trace analysis
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐J. Clarence Karcher
Researcher
๐ก Invented and commercialized the reflection seismograph (patents from 1919, first commercial survey 1921), co-founded Geophysical Service Inc. (precursor to Texas Instruments)
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Jack K. Cohen
Researcher
๐ก Co-authored (with Norman Bleistein) the seminal late-1970s papers establishing the mathematical basis of Kirchhoff-based seismic migration algorithms
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Roy Oliver Lindseth
Researcher
๐ก Invented seismic trace inversion (Lindseth inversion), converting seismic amplitude data into pseudo-acoustic-impedance logs, and pioneered synthetic well-log generation and digital seismic signal processing
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐J. Edward White
Researcher
๐ก Made seminal contributions to shear-wave prospecting, vertical seismic profiling, full-waveform acoustic logging, and seismic-wave attenuation theory over a 30-year research career
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐John M. Crawford
Researcher
๐ก Co-invented Vibroseis (with W.E.N. Doty and M.R. Lee), the continuous-signal vibratory seismic source method that replaced dynamite as the dominant land seismic source
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Stuart Crampin
Researcher
๐ก Advanced the theory and application of shear-wave splitting to detect stress-aligned microcrack anisotropy in the crust, foundational to modern seismic anisotropy analysis
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Woldemar Voigt
Researcher
๐ก Developed the Voigt (Kelvin-Voigt) viscoelastic material model, the rheological foundation of seismic attenuation (Q) and viscoelastic wave-propagation theory
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Karl Bernhard Zoeppritz
Researcher
๐ก Derived the Zoeppritz equations (1919, published posthumously) relating P- and S-wave reflection/transmission amplitudes to angle of incidence, the exact mathematical foundation of AVO/AVA analysis
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Charles K. Kao
Researcher
๐ก Pioneered low-loss optical fiber technology (1966), earning the 2009 Nobel Prize in Physics; the physical foundation of distributed acoustic sensing (DAS) fiber-optic seismic acquisition
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Harry Nyquist
Researcher
๐ก Established the Nyquist sampling criterion (1928), the foundational sampling theory underlying seismic data interpolation, regularization, and simultaneous-source (blended) data separation
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Christiaan Huygens
Researcher
๐ก Formulated Huygens' Principle (1678), describing wave propagation as the superposition of secondary wavelets, the foundational wave-optics concept underlying seismic survey illumination and diffraction analysis
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Norman Levinson
Researcher
๐ก Developed the Levinson recursion algorithm (1947) for efficiently solving Toeplitz normal equations, the computational backbone of predictive deconvolution and multiple-suppression filtering in seismic processing
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Gustav Herglotz
Researcher
๐ก Co-developed (with Emil Wiechert) the Wiechert-Herglotz method (1907) for inverting travel-time curves to recover subsurface velocity structure, the mathematical origin of traveltime tomography
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
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๐Norman Haskell
Researcher
๐ก Developed the Thomson-Haskell propagator matrix method (1953) for computing Rayleigh and Love surface-wave dispersion in multilayered media, the standard computational tool for near-surface shear-velocity inversion
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Adrien-Marie Legendre
Researcher
๐ก Method of least squares (1805); Legendre polynomials; Legendre transformation
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center
๐Emil Wiechert
Researcher
๐ก Wiechert seismograph and first continuous global seismic recording; discovery of the Earth's core-mantle structure
โก Intelligent Geophysical Exploration DivisionSeismic Exploration & Imaging Center