*Computational Ocean Acoustics*

by Jensen, Kuperman, Porter, and Schmidt

* **page
47, Eq. 1.69*

The phase factor in the numerator should be exp( i * phi_2
), which is logical since transmission is associated with
a single passage through the layer, whereas reflection has
a double passage and hence phase factor exp( 2 * i * phi_2
). (The formula was correct in the first edition …)

* Figure 2.12*

Shows |R|^2 not |R|. This problem might occur in some of
the other plots. Fig. 2.10 has the same issue.

* Figure 2.31*

The caption says the plot is for an ideal waveguide. It is
actually for a Pekeris waveguide with a bottom speed of
1800 m/s, bottom loss of .1 dB/wavelength, and density of
1.8 g/cm^3

*Eq. 2.145*

The 4 in the denominator should be a 2. This expression gives
the Green's function for a point source in an ideal waveguide.

*
Figure 3.8*

The figure title indicates the TL was done at a frequency
of 50 Hz. The correct frequency is 600 Hz.

* Chapter 5*

The reference to the Evans coupled mode algorithm is for two homogeneous layers. This paper lays out the basic process; however, a more complete reference, that includes a depth-dependent sound speed is:

R. B. Evans and K. E. Gilbert, "Acoustic propagation in a
refracting ocean waveguide with an irregular interface,"

*Comp. Maths. Appl.,* Vol. 11, No.
7/8, 795-805 (1985).

Another useful reference is

J. A. Fawcett, "Coupled-mode modeling of
acoustic scattering from three-dimensional axisymmetric
objects,"

*J. Acoust. Soc. Am.*, Vol. 102,
3387-3393 (1997)].

*Eq.
(8.29)*

* Eq. (8.53)*

Should have dz^2 on the left not dz

The derivative should be a partial derivative.

* Eq. (8.54)*

is missing ‘i’ in e^( i k v t )

* Eqs. 8.73, 8.76, 8.80, and Eq.8.84*

Should be approx. equal sign in the first line of equation