Richard Aster
Geophysics Program
Department of Earth and Environmental Science
Socorro, New Mexico
aster@ees.nmt.edu
(575) 835-5924
Learning Objectives
Fundamental concepts: Theoretical understanding of elasticity, elastic waves, and seismic sources.
Skills and Capabilities: Detailed understanding of linear stress-strain theory. Ability to model body and surface waves in plane media, including evanescent waves. Understanding of seismic ray theory in plane and spherical geometries. Ability to characterize and interpret seismic moment tensors.
Specific Topics: Continuum mechanics of linear elastic media, including stress, strain and traction. Derivation of linear elastic waves and their characteristics from the equation of motion. Determination of reflection and transmission properties of seismic waves obtained by the matching of traction, and displacement boundary conditions. Ray tracing in layered and spherically symmetric media. Theory of Love and Rayleigh surface waves. Characterization of seismic sources and their radiation characteristics, essentials of synthetic seismograms.
Review Materials
A Basic Math Overview (pdf) (See also the Mathematical and Computational Appendix in Stein and Wysession)
An Index Notation Primer (pdf) by Ilan Ben-Yaacov and Francesc Roig
A Table of Elastic Moduli Conversions (pdf)
Stress, Strain, and Elasticity (2011; pdf)
The Seismic Wave Equation (2011; pdf)
Plane Waves in Layered Media (2011; pdf)
Required Textbook
Introduction to Seismology, 2nd Edition, by Peter Shearer Cambridge University Press, 2009.
Strongly Recommended Textbooks
Quantitative Seismology, by Kei Aki and Paul Richards. Second Edition, University Science Books, 2002.
An Introduction to Seismology, Earthquakes, and Earth Structure, by Seth Stein and Michael Wysession, Blackwell Publishing, 2003.
Interesting Links
Zoeppritz Explorer and Anisotropic Zoeppritz Explorer by the Consortium for Research in Elastic Wave Exploration Seismology at the Unversity of Calgary.
Seismology Java Applets from the Geophysics Department at TU Clausthal.
Exercises
Matlab and Mathematical Primer Exercise
Spring 2011 Presentations
Katyliz Anderson -- Analysis of Source Spectra (4/29; Cramer 124)
Shoba Maraj -- Applications of the Tau-p Inversion Method (4/29; Cramer 124)
Rob Anthony -- Non Double-Couple Source Mechanisms (5/3; MSEC 351)
Jake Anderson -- Source Effects on Surface Wavefields (5/3; MSEC 351)
Alex Rinehart -- An Introduction of Finite Difference Methods in Seismology (5/4; Cramer 124)
Holly Rotman -- Seismic Wave Attenuation in Cracks and Pores of Partially Saturated Rock (5/4; Cramer 124)
Ben Davis -- Seismic Gradiometry (5/5; MSEC 202)
Aida Quezada -- Slow Earthquakes (5/5; MSEC 202)
Emily Morton -- Dynamic Earthquake Triggering Due to Stress from Surface Wave Particle Displacement (5/5; MSEC 202)
Rebecca Johnson -- Theory of Response Spectrum Analysis (5/6; Cramer 124).
Adam Ringler -- T* and Attenuation (5/6; Cramer 124)
Other Recent Student Final Presentations
Kent Anderson Seismic Noise Trapping in Firn
Rafael Alvarado, Oceanic Microseisms
Sara McNamara, Non-Double Couple Seismic Sources and Theory
Mario Ruiz, Analysis of Particle Motion Recorded by Three Component Seismic Stations
Todd, White, Construction of Synthetic Seismograms for a P-SV System using the Wave Propagator Method
Wenzheng Yang, A Basic Study on Two-Point Seismic Ray Tracing
Julien Chaput, Green's Functions, Noise, and Seismic Interferometry
Omar Marcillo, The Effects of Thermal and Wind Fields in teh Propagation of Infrasonic Waves in the Atmosphere
Last Updated: September 19, 2011 by Webmaster |