Propapation and attenuation characteristics of multilayered media

An algorithm is proposed to numerically integrate the inhomogeneous depth-separated wave equation using a state variable technique. The solution obtained for two simple shallow water models is shown to agree well with the known exact solutions. Integration grid density is discussed and a minimum required density specified. The use of complex sound speeds to simulate bottom attenuation is reviewed. A numerical instability inherent to the technique that arises during the use of complex sound speeds is investigated. The algorithm is also applied to a deep ocean profile, and the solution characteristics discussed. Sensitivity problems that arise when modelling the seafloor as a layered elastic medium are analyzed.

Grantor dc:publisher

Massachusetts Institute of Technology and Woods Hole Oceanographic Institution

Year dc:date.issued

1979

Author dc:creator

• Koch, Stephen Patrick

• Sound
• Speed
• Algorithms

Language dc:language.iso

en_US

DOI

10.1575/1912/1510

OAI identifier oai:identifier

oai:darchive.mblwhoilibrary.org:1912/1510