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**DISC Book Errata*******************

**p xi**... SeismicUn*x is open source software not public domain software

**p 37**... Figure 1(c) legend is mis-labled for phase and group velocity. Light gray is group velocity, dark gray is phase velocity.

**p 38...**Chap 3 Eq 21 see correction below in red

**p 38...**Chap 3 Eq 22 see correction below in red

**•p 42**... left side of Eq 23 should be zero not R

**p 55**... Chap 4 Eq 9 is an invertible set of relationships between stiffness and Thomsen parameters, but the quadratic terms in the definition of delta require a choice of sign. For details see Tsvankin's 2012 book

*Seismic Signatures and Analysis of Reflection Data in Anisotropic Media*(p 19).

**•p 73**... para 2 reference should be Nagaoka (1906) as correctly given in the reference list

**p 75.**.. Table 2 wave equation (WE) entries for

*Time--dependent moduli*should read "Linear"

**p 80**... Figure 2 vertical axis label should read: "1000/Q or Log(velocity)"

**p 83**... Figure 3 vertical axis label should read: "1000/Q or Log(velocity)"

**p 121**... Figure 12c velocity profile should decrease with depth as shown below:

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**Key References******************* updated 10 June 2012

At several early DISC events I was asked to make my key references available on the web. DISC attendees, you have been heard....

**Chapter 1**

Chakraborty, A. and Okaya, D., 1995, Frequency-time decomposition of seismic data using wavelet-based methods: Geophysics, Soc. of Expl. Geophys., 60, 1906-1916. PDF

Torrence, C. and Compo, G., 1998. A practical guide to wavelet analysis. Bulletin of the American Meteorological Society, 79, no. 1, 61-78. PDF

Bernhard G. Bodmann and Christopher L. Liner, "Stable signal recovery from the roots of the short-time Fourier transform", Proc. SPIE 8138, 813817 (2011); http://dx.doi.org/10.1117/12.894941

PDF Slides

**Chapter 2**

Doty and Crawford, 1954, First Vibroseis patent. PDF

**Chapter 3**

Park, C. B., Miller R. D., and Xia J., 1998, Imaging of dispersion curves of surface waves on multi-channel record: SEG, Expanded Abstracts, 17 , no. 1, 1377-1380 PDF (this is the Geophysics paper of 1999)

**Chapter 4**

Backus, G., 1962, Long-wave elastic anisotropy produced by horizontal layering: J. Geophys. Res., 67, 4427–4440. PDF

Liner, C. L., and Fei, T. W., 2006, Layer-induced seismic anisotropy from fullwave sonic logs: Theory, application, and validation:Geophysics 71, D183-D190. PDF

Liner, C. L., and T. W. Fei, 2007, The Backus number: The Leading Edge, 26, 420-426. PDF

**Chapter 5**

Liu, H.-P., Anderson, D. L., and Kanamori, H., 1976, Velocity dispersion due to anelasticity; implications for seismology and mantle composition, Geophys. J. R. astr. Soc., 47, 41-58. PDF

An earlier occurrence of the standard linear solid (SLS) form of Hooke's law is found in C. W. Horton,

*A loss mechanism for the Pierre Shale*, 1959, Geophysics

**24**, 667. This paper is not referenced by Liu, et al. (1976).

First occurrence of theSLS is in Clarence Zener

*Elasticity and anelasticity of metals*, University of Chicago Press, 1948. This is not referenced by Horton (1959) or Liu et al. (1976).

Kjartansson, E., 1979, Constant QWave propagation and attenuation : Journal of Geophysical Research B, 84, 4737-4748. PDF

Also, Kjartansson's PhD thesis can be found online at the Stanford Exploration Project. PDF

**Chapter 6**

O’Doherty, R. F. and Anstey, N. A., 1971, Reflections on amplitudes: Geophys. Prosp., Eur. Assn. Geosci. Eng., 19, 430-458. PDF [Thank you to Alessandro Amato del Monte]

**Chapter 7**

Biot, M. A., 1956a, Theory of propagation of elastic waves in a fluid-saturated porous solid, I: Low frequency range, J. Acoust. Soc. Am, 28, 168-178. PDF

Dutta, N. C., and H. Ode, 1983, Seismic reflections from a gas-water contact: Geophysics, 48, 148-162. PDF

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