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Ocean and Seabed Acoustics: A Theory of Wave Propagation by George V. Frisk - Woods Hole Oceanographic Institution

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Chapter I. Ocean and SeabedAcoustics: A Physicist’sPerspective

There is no new thing under the sun.Ecclesiastes 1:9

The more things change, the morethey remain the same.Alphonse Karr, 1849

1.1 Introduction

Ocean and seabed acoustics is a remarkable science with significant practical applications. For the physicist specializing in wave propagation, the ocean provides a medium in which virtually every conceivable basic problem in wave propagation can be studied. The ocean is an inhomogeneous medium with an acoustic index of refraction that varies with depth as a result of changes in temperature and hydrostatic pressure and, to a lesser extent, in salinity. On a finer spatial scale, thermal microstructure introduces a random component to the sound ...

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