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1 - 10 of 36 results for: GEOPHYS

GEOPHYS 50N: Planetary Habitability, World View, and Sustainability

Sustainability lessons from the geological past Life on Earth has partially perished in sudden mass extinctions several time over the Earth's history. Threats include actions of our own volition, including fossil fuel burning as well as natural events, including the impact of large asteroids. The end Permian 250 million years ago and end Paleocene 55 million years ago extinctions involved natural burning of fossil fuels. The 65 million year ago end Cretaceous extinction involved the impact of and asteroid and possibly fossil fuel burning. Related sustainability topics in the popular press will be discussed as they arise. Student pairs lead discussions on topics on how humanity might avert these catastrophes. Offered occasionally.
Terms: Win | Units: 3 | UG Reqs: GER: DB-NatSci

GEOPHYS 100: Directed Reading

(Staff)
Terms: Aut, Win, Spr, Sum | Units: 1-2

GEOPHYS 104: The Water Course (EARTHSYS 104)

The pathway that water takes from rainfall to the tap using student home towns as an example. How the geological environment controls the quantity and quality of water; taste tests of water from around the world. Current U.S. and world water supply issues.
Terms: Win | Units: 4 | UG Reqs: GER: DB-NatSci, WAY-AQR, WAY-SMA

GEOPHYS 110: Earth on the Edge: Introduction to Geophysics

Introduction to the foundations of contemporary geophysics. Topics drawn from four broad themes in: whole Earth geodynamics, geohazards, natural resources, and environment/sustainability. In each case the focus is on how the interpretation of a variety of geophysical measurements (e.g., gravity, seismology, heat flow, magnetism, electromagnetics, and geodesy) can be used to provide fundamental insight into the behavior of the Earth's complex geosystems. Prerequisite: CME 100 or MA TH 51, or co-registration in either.
Terms: Win | Units: 3 | UG Reqs: GER: DB-NatSci, WAY-AQR, WAY-SMA

GEOPHYS 120: Ice, Water, Fire (GEOPHYS 220)

Introductory application of continuum mechanics to ice sheets and glaciers, water waves and tsunamis, and volcanoes. Emphasis on physical processes and mathematical description using balance of mass and momentum, combined with constitutive equations for fluids and solids. Designed for undergraduates with no prior geophysics background; also appropriate for beginning graduate students. Prerequisites: CME 100 or MATH 52 and PHYSICS 41 (or equivalent). Offered every year, winter quarter.
Terms: Win | Units: 3-5 | UG Reqs: GER: DB-NatSci, WAY-FR, WAY-SMA

GEOPHYS 141: Remote Sensing of the Oceans (EARTHSYS 141, EARTHSYS 241, EESS 141, EESS 241)

How to observe and interpret physical and biological changes in the oceans using satellite technologies. Topics: principles of satellite remote sensing, classes of satellite remote sensors, converting radiometric data into biological and physical quantities, sensor calibration and validation, interpreting large-scale oceanographic features.
Terms: Win | Units: 3-4 | UG Reqs: GER: DB-NatSci, WAY-AQR
Instructors: Arrigo, K. (PI)

GEOPHYS 146A: Atmosphere, Ocean, and Climate Dynamics: The Atmospheric Circulation (EARTHSYS 146A, EARTHSYS 246A, EESS 146A, EESS 246A, GEOPHYS 246A)

Introduction to the physics governing the circulation of the atmosphere and ocean and their control on climate with emphasis on the atmospheric circulation. Topics include the global energy balance, the greenhouse effect, the vertical and meridional structure of the atmosphere, dry and moist convection, the equations of motion for the atmosphere and ocean, including the effects of rotation, and the poleward transport of heat by the large-scale atmospheric circulation and storm systems. Prerequisites: MATH 51 or CME100 and PHYSICS 41.
Terms: Win | Units: 3
Instructors: Thomas, L. (PI)

GEOPHYS 181: Fluids and Flow in the Earth: Computational Methods (GEOPHYS 200)

Interdisciplinary problems involving the state and movement of fluids in crustal systems, and computational methods to model these processes. Examples of processes include: nonlinear, time-dependent flow in porous rocks; coupling in porous rocks between fluid flow, stress, deformation, and heat and chemical transport; percolation of partial melt; diagenetic processes; pressure solution and the formation of stylolites; and transient pore pressure in fault zones. MATLAB, Lattice-Boltzmann, and COMSOL Multiphysics. Term project. No experience with COMSOL Multiphysics required. Offered every other year, winter quarter.
Terms: Win | Units: 3

GEOPHYS 186: Tectonophysics & Global Tectonics (GEOPHYS 290)

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

GEOPHYS 187: Environmental Soundings Image Estimation (GEOPHYS 211)

Imaging principles exemplified by means of imaging geophysical data of various uncomplicated types (bathymetry, altimetry, velocity, reflectivity). Adjoints, back projection, conjugate-gradient inversion, preconditioning, multidimensional autoregression and spectral factorization, the helical coordinate, and object-based programming. Common recurring issues such as limited aperture, missing data, signal/noise segregation, and nonstationary spectra. See http://sep.stanford.edu/sep/prof/.
Terms: Win | Units: 3
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