| Traveltimes with Adam | ||
| "Traveltimes, etc. with Adam" is a collection of both original handwritten
notes as well as computer generated graphs. The notes themselves are contained within a
red loose leaf binder. While most of the notes come from by himself, a couple pages
are by Adam Baig, a Ph.D. student who worked with Dahlen at Princeton.
Baig presented his thesis in September of 2003. It was titled "Wavefront Healing in Random Media."
The contents of this collection recount Dahlen's work with velocity fields and ray theory, ultimately seeking to further perfect the idea of solving the inverse problem of traveltimes, which refers to the notion of discovering properties of the Earth based on how long it takes for earthquake signals to get to various seismometers around the globe. This collection can be found at: Guyot Hall, Princeton, NJ, 08540. Back to Main Page |
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| Pages | Sheet Numbers | |
| Random velocity fields | 1–3 | 1–3 |
| Random velocity field | 4–9 | 1–6 |
| Travel-time delays in Random Media | 10 | N/A |
| More on random models | 11–15 | 1–5 |
| More on random models | 16–20 | 1–5 |
| Thinking about random models — one more time | 21–31 | 1–11 |
| δT_ray in a pseudo-random model (contains computer generated graphs) | 32–89 | 1–3 |
| Possibilities for Future Work [Adam Baig] | 90 | N/A |
| δT-ray continued | 91–136 | N/A |
| The Efficacy of Born Kernels for Computation of Traveltimes in Random Media | 137–138 | N/A |
| What I will do with my summer vacation [Adam Baig] | 139 | N/A |
| Amplitude Perturbations in Random Media [Adam Baig] | 140–143 | N/A |
| [Notes compiled at 2000 Fall AGU Meeting] | 144–147 | N/A |
| [Notes on traveltime anomaly distributions] | 148–175 | 1–6, 1–8 |
| Snieder and Sambridge eq. (53) Proof | 176–228 | 1–17, 1–13, 1–6, 1–3, 1–8, 1–4 |
| Traveltime variance | 229 | N/A |
| Mean Square Traveltime — one more time | 230–282 | 1–10, 1–5, 7, 8–1, 1–12, 1–9 |
| Ellipsoidal coordinates | 283–332 | 1–12, 1–3, 1–2, 1–8, 1–9, 1–3, 1–5 |
| Second order traveltime perturbation | 333–352 | 1–16, 1–4 |
| Second-order traveltime — what do we expect in ray theory | 353–358 | 1–6 |
| Second-order traveltime perturbation: finite frequency | 359–387 | 1–20, 1–3, 1–6 |
| Ray theoretical δT | 388–397 | 1–7 |
| Ensemble averaging — Gaussian medium | 398–411 | 1–14 |
| Mean square traveltime — slight mistake last time | 412–420 | 1–8, 10 |
| Mean traveltime — to second order — Gaussian random medium | 421–458 | 1–8, 1–6, 1–4, 1–4, 1–7 |