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, †}

(color online) (a) Geometry of the waveguide in Example C. (b)–(d) TL curves of sound pressure at a depth of 30 m along φ = 0°, 45°, and 63.4° in Example C.