Keywords: SCM4 fig11.jpg en Acoustic simulation in a simple ocean environment depicting several of the features required in a Naval operational model beam source wind-driven sea surface losses on the first reflection and loss-vs-angle ocean bottom treatment Also present but less evident in the simulation are seawater volume attenuation and spherical Earth corrections Source frequency angle and beamwidth are 250 Hz 5 degrees and 1 5 degree respectively; water is isovelocity at 1500 m/s and depth is 1000 meters; windspeed is 20 m/s; ocean bottom parameters approximate soft rock R A Zingarelli and D B King http //www nrl navy mil/research/nrl-review/2003/simulation-computing-modeling/zingarelli/ RAM to Navy Standard Parabolic Equation Transition from Research to Fleet Acoustic Model Figure 11 In 2003 NRL Review R A Zingarelli and D B King 2003 PD-USGov-Military-Navy Hydroacoustics |