The Digital Dahlen Papers

Digitized copies of research and class notes of F. A. Dahlen

See also The Dahlen Notebooks

We begin, quite modestly, with some loose-leaf course notes found among the Dahlen papers.

Complications which may arise in [travel-time curves]. PKP in actual Earth. 00001.pdf
Seismic ray theory in spherical Earth. Body wave nomenclature. The forward problem of body wave seismology. 00002.pdf
[Lithosphere and asthenosphere.] The principle of isostasy. Isostatic geoid anomalies over the oceanic lithosphere. 00003.pdf
Gravitational field of [Earth] and shape of [Earth]. Doppler measurements. Extrasolar planets. 00004.pdf
Heat flow at [Earth]'s surface. [Temperature], Heat, Power, Lithosphere, Asthenosphere. Thermal evolution of the oceanic lithosphere. 00005.pdf
Seismology: introduction. Anelasticity and damping of seismic waves. Seismic body waves. Geometrical optics. 00006.pdf
The inertia tensor. Mathematical aside. The external gravitational potential of Earth. Precession of the equinoxes. Centrifugal potential and the geoid. The hydrostatic ellipsoid. 00007.pdf
Spherical harmonics. 00008.pdf
[Normal modes.] Rayleigh's principle. Excitation. Energy flux. [Eisner's paradox.] 00009.pdf
Normal mode excitation on a SNREI Earth. Decomposition into travelling surface waves. 00010.pdf
Anelasticity and Attenuation. Harmonic variations. Energy dissipation and [the frequency-dependent quality factor]. Relaxation spectrum. Attenuation of normal modes. Normal modes of a SNREI Earth. Mode-Ray Duality. The Jeans Relation. Asymptotic toroidal eigenfunctions. 00011.pdf
[Ratio of bulk to shear modulus.] PKIKP mode. Radial mode: homogeneous sphere. 00012.pdf
Free Oscillations and Surface Waves. Hamilton's principle. Green's tensor. Response to a transient force. Rayleigh-Ritz method. Seismic source representation. Moment tensor. Earthquake fault source. 00013.pdf
Local energy conservation law. 00014.pdf
Class #9. Stress glut. Double couple. Moment tensor. Radiation pattern. Centroid Moment tensor. 00015.pdf
Class #10. Eulerian vs Lagrangian. 00016.pdf
Class #11. Small oscillations. Rayleigh's principle. 00017.pdf
Violin string. 00018.pdf
Rayleigh's principle. 00019.pdf
Earthquake hazard. 00020.pdf

Population growth. 00021.pdf
Fossil fuels. 00022.pdf
Earth's surface temperature. 00023.pdf
Current rate of CO2 emission. 00024.pdf
Is there any evidence for a temperature rise? 00025.pdf
Nuclear energy. 00026.pdf
Anton van Leeuwenhoek 00027.pdf
Population growth. 00028.pdf
Maximum sustainable population. 00029.pdf
How much have we used and how much is left? 00030.pdf
Temperature of the Earth. The greenhouse effect. 00031.pdf
Global warming. 00032.pdf
What is the expected post-industrial temperature rise? 00033.pdf
Alternative energy sources. 00034.pdf

Snell's law. Slip distribution on a fault. Plate tectonics. 00035.pdf
Stream discharge. 00036.pdf
Ophiolites and mid-ocean ridges. 00037.pdf

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