Problem 4
Do the wavenumber integration in a Pekeris waveguide for the following parameters: f = 150 Hz,
zs = 25 m; zr = 35 m; cw = 1500 m/s; cb = 1800 m/s; rho_water = 1 g/cm^3; rho_bottom = 1.8
g/cm^3; dz = 5 m; Nlayer = 30. (please see the definition of each parameter in
greenpekeris_student.m). This problem is based on the class lectures that are covering sections
4.1, 4.2.1, 4.2.2, 4.3.2, 4.5-4.5.4 and the Recipe pp 320-323.
a) Run the code greenpekeris_student.m and understand each line of this code.
b) Plot the green’s function and transmission loss for two source receiver configuration. 1)
zs=25 m, zr=35 m; 2) zs=35 m, zr=25 m. The other parameters are the same as title. Is
there any difference between these two cases? Why?
c) Plot the transmission loss for all the depth in the pekeris waveguide. (zs=25 m)
d) Plot the transmission loss for all the depth in a half space. (zs=25 m)
