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Douglas Green
| 1997-present | | Associate Professor |
| 1991-1997 | | Assistant Professor |
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| PhD (geophysics), 1989 | | University of Wisconsin |
| BS (physics), 1981 | | University of Washington |
Office: 204 Clippinger Laboratories
Office Phone: 740-593-1843
Fax: 740-593-0486
Research Interests
My interests have me involved in theoretical work, experimental investigations, and fieldwork. Characterization of regional seismicity and seismic hazard involves both modeling of existing data as well as data acquisition in the field. The Geology Department's station of the OhioSeis earthquake monitoring network allows steady accumulation of regional earthquake data as well as access to data on the entire network. Use of the Department's geotechnical seismic equipment allows field characterization of the shear response of near-surface materials using surface and refracted waves. Shear properties are essential in generating shaking potential maps for seismic hazard assessment. Other near-surface field geophysics capabilities include electrical resistivity tomography, down-hole electrical conductivity logging, and magnetic and gravimetric surveying.
My theoretical research includes investigation into the mechanical fluid-solid transition of two-phase (i.e., fluid plus solid) materials. My work has examined both fluid-saturated sediments and high-concentration suspensions and has shown that some interesting behaviors occur at the "crossover" between these two classes of materials. Potential applications of this work include seismic/acoustic detection of saturated sediments with high liquefaction potential.
A new and very exciting line of research examines the interior of Mars from a seismology perspective. This work is obviously only theoretical at the moment, but it examines competing models for the composition and layering of the planet and predicts what each model implies for seismic traveltimes that would be observed when a global seismic network is established on Mars. | |
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Representative Publications
>¤ J.L. Brandeberry and D.H. Green, "Lg-Wave Attenuation Across Ohio", 2005 Abstracts with Programs, North-central Section, Geological Society of America, vol.37, no. 5, p.100, 2005. (Awarded Outstanding Undergraduate Presentation.)
>¤ J.R. Sheehan and D.H. Green, "Shear Wave Profiles of Surficial Deposits in Ohio Using Multichannel Surface Wave Methods", 2002 Abstracts with Programs, North-Central Section, Geological Society of America, vol. 34, no.2, p.90, 2002.
>¤ M.A. Painter, B. Laverty, M.W. Stoertz, and D.H. Green, "Resistivity Imaging of a Partially Reclaimed Coal Tailings Pile", Proc. of SAGEEP, Env. and Eng. Geophysical Soc., p. 679-687, 2000.
>¤ R. Esquivel-Sirvent and D.H. Green, "Hydrodynamic acoustic absorption at the fluid/solid transition of suspensions", J. Acoust. Soc. Am., vol. 111, no.2, 763-768, 2002.
>¤ M. Jadhav and D.H. Green, "Theoretical Traveltime Curves for Mars", Eos, Trans. AGU, vol.83, p.F283, 2002.
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Titles of Recent BS and MS Theses
>¤ "Lg-wave Attenuation Across Ohio", J.L. Brandeberry, Senior Thesis (BS), 2005.
>¤ "Travel Time curves for Interior Structure Models of Mars", M. Jadhav, Masters Thesis, 2003.
>¤ "Seismic Hazard Zonation of the Cleveland South 30x60-Minute Quadrangle, Ohio", Masters Thesis, G. Hovhannisyan, 2002.
>¤ "Shear-wave Profiles of Surficial Deposits in Ohio Using Multichannel Surface Wave Methods", Masters Thesis, J. Sheehan, 2002.
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Courses Taught
 | GEOL 215: Environmental Geology
(for non-majors and geology majors) |
| GEOL 4/566: Geodynamics: The Earth's Interior
(for senior geology majors & graduate students) |
| GEOL 4/573: Forensic Geoscience
(a new, team-taught course for senior science majors & graduate students) |
| GEOL 4/585: Introduction to Applied Geophysics
(for senior science/engineering majors & graduate students) |
| GEOL 4/586: Applied Seismology
(applied geophysics field course, pre-req: 4/585) |
Memberships
>¤ American Geophysical Union (AGU)
>¤ Society of Exploration Geophysicists (SEG)
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