Three-dimensional parabolic equation model for seismo-acoustic propagation: Theoretical development and preliminary numerical implementation

Tang Jun^{1, 2}, Piao Sheng-Chun^{1, 2}, Zhang Hai-Gang^{1, 2, †}

(a) Geometry of the waveguide in Example A. (b) TL contour of sound pressure on the horizontal plane at a depth of z = 30 m. The solid lines are along the azimuthal directions of φ = 0°, 45°, 76°, and 82.9°, respectively.