Geophysical Fields
GEOS 602
This course is no longer taught. This page documents the last time it was taught.
Spring 2010
Tu-Th 1:30-3:00, GI Auditorium
Instructor: Jeff Freymueller
x7286 Elvey 413B jfreymueller@alaska.eduLast Updated: January 20, 2010
Course Topics
- Gravity, gravitational field of earth, gravity measurement and interpretation
- Magnetics, magnetic field of earth, paleomagnetics, magnetic measurement and interpretation
- Heat in the earth, heat flow, conduction and convection
Grading Scheme
- 60% Homework
- 40% Final Project
Homework
- 10 Problem Sets, roughly weekly
Final Project
- Numerical or computational project.
Detailed Schedule
Each lecture title is a link to the powerpoint file for that lecture.
Day |
Date |
Lecture Topic |
Thu |
Jan 21 |
Gravity 1: What is a field?, Mathematical properties of scalar and
vector fields, Potential and field, Newtonian Attraction;
|
Thu |
Jan 26 |
NO CLASS |
Thu |
Jan 28 |
Gravity 2: Measurements of gravity, Potential of an arbitrary 3D body, Potential of a sphere |
Tue |
Feb 2 |
Gravity 3: MacCullough's
formula, Earth's gravity field;
|
Thu |
Feb 4 |
Gravity 4: The Geoid, Shape of the Earth, Introduction to orthogonal functions |
Tue |
Feb 9 |
Gravity 5: Spherical Harmonics,
Application to the global gravity field;
|
Thu |
Feb 11 |
Gravity 6: Satellite Measurements of the Gravity Field and gravity change |
Tue |
Feb 16 |
Gravity 7: More gravity
change and spherical harmonics, Tides;
|
Thu |
Feb 18 |
Gravity 8: Gravity surveys, Gravity Anomalies, Examples of gravity anomalies from the real world. |
Tue |
Feb 23 |
Gravity 9: Modeling gravity anomalies, Attraction of special
mass distributions, Excess mass, Green's equivalent layer, Sinusoidally-varying topography;
|
Thu |
Feb 25 |
NO CLASS |
Tue |
Mar 2 |
Gravity 10: Compensation,
Isostasy, Isostatic Anomalies, Gravity and lithospheric flexure
|
Thu |
Mar 4 |
Gravity 11: Fourier methods, Upward and downward continuation. |
Tue |
Mar 9 |
SPRING BREAK!! |
Thu |
Mar 11 |
SPRING BREAK!! |
Tue |
Mar 16 |
Gravity 12: Fourier methods, Application of Fourier methods to compensation |
Thu |
Mar 18 |
Magnetics 1: Electricity and magnetism, Electric and magnetic fields, Magnetic field of the Earth, IGRF |
Tue |
Mar 23 |
Magnetics 2: The dipole and
non-dipole fields, Magnetization, Magnetic anomalies
|
Thu |
Mar 25 |
Magnetics 3: Magnetization, Modeling magnetic anomalies, Total field anomaly |
Tue |
Mar 30 |
Magnetics 4: Reduction to the pole,
Examples of magnetic anomaly maps, How rocks get their magnetization, Paleomagnetism,
Magnetic reversals and history of Earth's magnetic field
|
Thu |
Apr 1 |
|
Tue |
Apr 6 |
Initial Presentation of Final Project Topics |
Thu |
Apr 8 |
Heat Flow 1: Heat transfer, Fourier's Law, Heat flow in the Earth
|
Tue |
Apr 13 |
Heat Flow 2: Heat sources within the Earth and the geothermal gradient, Conduction |
Thu |
Apr 15 |
Heat Flow 3: Conduction on a sphere, 1D time-dependent conduction
|
Tue |
Apr 20 |
Heat Flow 4: Heating or cooling of a semi-infinite half-space, Cooling of oceanic crust |
Thu |
Apr 22 |
Heat Flow 5: Advection |
Tue |
Apr 27 |
Progress Reports on Final Projects |
Thu |
Apr 29 |
Heat Flow 6: The Stefan problem and phase changes |
Tue |
Apr 27 |
Heat Flow 7: Thermal stresses, mantle adiabats |
Thu |
Apr 29 |
Heat Flow 8: Convection |
END OF CLASSES (but final Project due Fri May 14)
Dr. Jeffrey T. Freymueller
Professor of Geophysics
Geophysical Institute
University of Alaska, Fairbanks
Fairbanks, AK 99775-7320