Ge 193
Special Topics in Geophysics

Course Description

Topics

Homework

Reading assignments

Papers

Scripts

Textbooks

Useful Links

Tutorials

Instructor

Course Archives (Current & Previous Years)


Ge 193: Active Tectonic Geodesy (Prototype)

Volcanoes from Physics Today articleCourse Description

This course introduces the use of modern geodetic observations to constrain crustal deformation models. We will cover the commonly used basic elastic and viscoelastic models and their implications. We will also cover the processing and use of GPS and InSAR observations, especially newly available data from dense GPS networks and orbiting radar satellites. For both data types, we will address sources of noise and promote “best-practices” for using these data. We will begin with the use of secular velocity fields, followed by co-seismic, and time-dependent processes. Time permitting, we will address volcano deformation, as well as seasonal loading phenomena. As part of this course, we introduce basic inverse approaches to model parameter estimation, as well as basic temporal filtering algorithms. This course is intended to provide hands on experience and will rely extensively on the use of Matlab. Tutorials on software will be provided as needed.

Units: 3-0-6 (first term)
Regular class time: Tuesday and Thursday 9am – 10:30am, 162 S. Mudd
TA office hour: Wednesday 11am - noon, 362 S. Mudd
Grading policy: 60% homework, 40% project, no final


Topics

Please do the reading before the corresponding lecture.

Lecture

Day

Topic(s)

Reading

1

9/26

Class introduction and overview


2

9/28

Introduction to geodetic data and strain


3

10/3

Estimating strain from geodetic fields


4

10/5

Semi-infinite elastic dislocations


5

10/10

More elastic dislocations and intro to inversions


6

10/12

Introduction to inversion methods


7

10/17

NO CLASS -- Mark in Austin, TX


8

10/19

Introduction to InSAR I


9

10/24

Introduction to InSAR II


10

10/26

InSAR case studies


11

10/31

Viscoelasticity (presented by Eric Hetland) [PDF] [PPT]


12

11/2

Viscoelasticity part II (presented by Eric Hetland) (Mark away) [PDF] [PPT]


13

11/7

Time-dependent geodesy (presented by Carl Tape) [PDF] [PPT]


14

11/9

NO CLASS -- TO MEETING


15

11/14

Subduction zones and backslip models


16

11/16

Introduction to GPS processing I (presented by Frank Webb) [PDF]


17

11/17

***SPECIAL DAY -> FRIDAY***

Introduction to GPS processing II (presented by Frank Webb)


18

11/21

Subduction zone heterogeneity [PDF]


19

11/23

NO CLASS -- HAPPY THANKSGIVING!


20

11/28

Paper review/discussion


21

11/30

PCA and cross-validation methods



Homework

Late homeworks will be penalized 10% per day, unless there is a clear problem with any given assignment or there is some kind of real emergency. Discussing homeworks with fellow students is fine, but what is turned in should represent your work, not a group effort. Please do not request extensions on the same day the homework is due.

#

Date Due (@BOC)

Topic(s)

Homework Links

1

10/3

Familiarization with GMT, MATLAB, datalib, shell scripts, etc.

Assignment

Sella et al. [2002]

CMM4.0

CMM4.0 README

2

10/19

Strain maps

Assignment

Problems (PDF)

3

11/2

Finite faults

Assignment

4

11/14

Viscoelasticity

Given in class

5

12/7

SVD analysis of GPS time series

Assignment





*BOC = beginning of class



Reading assignments

As part of this class, we will read selected important papers. The papers will be handed out during the class or available as PDFs from the class website.

Your paper summaries/comparisons should be two pages long, max. In general, please treat this assignment like any other scientific writing (i.e., papers, reviews, and proposals) and conform to a format with single or double-spaced lines, 1 inch margins, and 12 pt font. Use a concise style of prose (but do not slip into outline form). Choose an active style over a passive style, avoid chatty colloquialisms (this is not a diary), watch that you have some kind of logical order of presentation, and be precise with your language.


#

Date Due (@BOC)

Papers

Notes

1

10/5

Ward [1998]

Meade and Hager [2005]

Write a 2-page review, commentary, and comparison of these papers

2

10/19

Mosegaard and Tarantola [2002]

Write a 1 page single-space or 2 page double-space summary/discussion of this paper. (You may skip the appendix if you wish.)

3

11/2

Emardson et al. [2003]

Lohman and Simons [2005]

Write a 1 page single-space or 2 page double-space summary/discussion of these papers.

4

11/14

Hetland and Hager [2006] (focusing on sections 1.2, 1.3, and 2.3)

Thatcher [1990]

Write a 1 page single-space or 2 page double-space summary/discussion of these papers.

5

11/28

Aoki and Scholz [2003]

Suwa et al. [2006]

Heki [in press, 2006]

Write a 2 page single-space or 4 page double-space summary/discussion of these papers.





*BOC = beginning of class


Background reading is available on the papers page.



Scripts

To complete your homework assignments and projects, take advantage of the useful scripts posted in the scripts page.



Textbooks




Useful Links




Tutorials



Instructor

Teaching Assistant

Ombudsperson


Last updated Oct. 12, 2006