Department
of Earth and Atmospheric Sciences
EAS
657 - Spring 2008
GEOPHYSICAL
INVERSE THEORY
Instructor: Robert Nowack, 494-5978
nowack@purdue.edu
Prerequisite:
Consent of Instructor
Time: TTH 12:00-1:15 PM
Place: Civil Bldg., Room 3201
1) Introduction
Example using the earth’s magnetic field
2) Review of Vector Space Methods
Banach spaces/Hilbert spaces
Generalized Fourier Series
Adjoint theorems
3) Spectral and Singular Value Decompositions
4) Maximum Likelihood and Stochastic Inversion
5) Seismic Tomography as a Linearized Inverse Problem
6) Surface Wave Analysis of Dispersion
7) Linear Equality and Inequality Constraints
8) L1 Norm/Non-Gaussian Statistics
9) Iterative Steepest Descent and Conjugate Gradients
10)
11) Kalman Filtering
12) Continuous Operators
The Green’s function as an inverse operator
Adjoint operators
Reciprocity
Functional derivatives
13) The Inverse Problem for Earthquake Source Parameters
14) Migration of Seismic Reflection Data
15) The Physics of Layered Media
Equations for acoustics and seismics
Layer matrices/matrizants
Exact inverse methods by layer-stripping
The Gelfand-Levitan method