SCM4_fig11.jpg


Summary

Description
English: 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.
Date
Source R.A. Zingarelli and D.B. King: RAM to Navy Standard Parabolic Equation: Transition from Research to Fleet Acoustic Model , Figure 11. In: 2003 NRL Review.
Author R.A. Zingarelli and D.B. King

Licensing

Public domain
This file is a work of a sailor or employee of the U.S. Navy , taken or made as part of that person's official duties. As a work of the U.S. federal government , it is in the public domain in the United States.

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