An Introduction to Surface Wave Analysis Michael E. Pasyanos - IRIS
An Introduction to Surface Wave Analysis Michael E. Pasyanos - IRIS
An Introduction to Surface Wave Analysis Michael E. Pasyanos - IRIS
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Seismic Tomography<br />
Tomography is an imaging method widely used in seismology for the<br />
derivation of bulk earth properties such as velocity and attenuation from<br />
measured properties along paths.<br />
It is analogous <strong>to</strong> <strong>to</strong>mography methods used in medical imaging, such as<br />
CT scans, but generally with much poorer coverage of the study region.<br />
t = A x<br />
We use it <strong>to</strong> invert dispersion measurements for spatially varying dispersion<br />
values.<br />
There are many methods <strong>to</strong> solve the inversion. We will be using a<br />
program that uses the conjugate gradient method.