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71 - 80 of 84 results for: GEOPHYS

GEOPHYS 270: Electromagnetic Properties of Geological Materials

Laboratory observations and theoretical modeling of the electromagnetic properties and nuclear magnetic resonance response of geological material. Relationships between these properties and water-saturated materials properties such as composition, water content, surface area, and permeability.
Terms: alternate years, given next year | Units: 2-3 | Grading: Letter or Credit/No Credit

GEOPHYS 281: Geophysical Inverse Problems

Concepts of inverse theory, with application to geophysics. Inverses with discrete and continuous models, generalized matrix inverses, resolving kernels, regularization, use of prior information, singular value decomposition, nonlinear inverse problems, back-projection techniques, and linear programming. Application to seismic tomography, earthquake location, migration, and fault-slip estimation. Prerequisite: MATH 51
Terms: Aut | Units: 3 | Grading: Letter or Credit/No Credit

GEOPHYS 284: Hydrogeophysics

The use of geophysical methods for imaging and characterizing the top 100 meters of Earth for hydrogeologic applications. Includes material properties, forward modeling, data acquisition, inversion, and integration with other forms of measurement. Each week includes three hours of lectures; plus one three-hour lab that involves acquisition of data at campus or nearby sites, or computer modeling of data. Offered occasionally.
Terms: offered occasionally | Units: 3 | Grading: Letter (ABCD/NP)

GEOPHYS 288A: Crustal Deformation

Earthquake and volcanic deformation, emphasizing analytical models that can be compared to data from GPS, InSAR, and strain meters. Deformation, stress, and conservation laws. Dislocation models of strike slip and dip slip faults, in 2 and 3 dimensions. Crack models, including boundary element methods. Dislocations in layered and elastically heterogeneous earth models. Models of volcano deformation, including sills, dikes, and magma chambers. Offered every other year, autumn quarter.
Terms: alternate years, given next year | Units: 3-5 | Grading: Letter or Credit/No Credit

GEOPHYS 288B: Crustal Deformation

Earthquake and volcanic deformation, emphasizing analytical models that can be compared to data from GPS, InSAR, and strain meters. Viscoelasticity, post-seismic rebound, and viscoelastic magma chambers. Effects of surface topography and earth curvature on surface deformation. Gravity changes induced by deformation and elastogravitational coupling. Poro-elasticity, coupled fluid flow and deformation. Earthquake nucleation and rate-state friction. Models of earthquake cycle at plate boundaries.
Terms: alternate years, given next year | Units: 3-5 | Grading: Letter or Credit/No Credit

GEOPHYS 289: Global Positioning System in Earth Sciences

The basics of GPS, emphasizing monitoring crustal deformation with a precision of millimeters over baselines tens to thousands of kilometers long. Applications: mapping with GIS systems, airborne gravity and magnetic surveys, marine seismic and geophysical studies, mapping atmospheric temperature and water content, measuring contemporary plate motions, and deformation associated with active faulting and volcanism.
Terms: alternate years, given next year | Units: 3-5 | Grading: Letter or Credit/No Credit

GEOPHYS 290: Tectonophysics & Global Tectonics (GEOPHYS 186)

The physics of faulting and plate tectonics. Topics: plate driving forces, lithospheric rheology, crustal faulting, and the state of stress in the lithosphere. Exercises: lithospheric temperature and strength profiles, calculation of seismic strain from summation of earthquake moment tensors, slip on faults in 3D, and stress triggering and inversion of stress from earthquake focal mechanisms. Offered every other year, winter quarter. This course is offered in 2014-15 instead of Geophys 170/220.
Terms: Win | Units: 3 | Grading: Letter or Credit/No Credit

GEOPHYS 385A: Reflection Seismology

Research in reflection seismology and petroleum prospecting. May be repeated for credit.
Terms: Aut, Win, Spr, Sum | Units: 1-2 | Repeatable for credit | Grading: Letter or Credit/No Credit

GEOPHYS 385D: Theoretical Geophysics

Research on physics and mechanics of earthquakes, volcanoes, ice sheets, and nglaciers. Emphasis is on developing theoretical understanding of processes governing natural phenomena.
Terms: Aut, Win, Spr, Sum | Units: 1 | Repeatable for credit | Grading: Satisfactory/No Credit
Instructors: Dunham, E. (PI)

GEOPHYS 385E: Tectonics

Research on the origin, major structures, and tectonic processes of the Earth's crust. Emphasis is on use of deep seismic reflection and refraction data. May be repeated for credit.
Terms: Aut, Win, Spr, Sum | Units: 1-2 | Repeatable for credit | Grading: Satisfactory/No Credit
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