Analytical solution based on the wavenumber integration method for the acoustic field in a Pekeris waveguide

Luo Wen-Yu^{1, †,}, Yu Xiao-Lin^{1, 2}, Yang Xue-Feng^{2, 3}, Zhang Ren-He¹

Transmission loss versus range and frequency by (a) KRAKEN with a homogeneous halfspace, (b) DGMCM with an artificial pressure-release lower boundary, and (c) the present method. The frequencies 112 Hz and 118 Hz are indicated by the black and white dashed lines, respectively.