Acoustic-Gravity Waves Interacting with a Rectangular Trench

Abstract EN

A mathematical solution of the two-dimensional linear problem of an acoustic-gravity wave interacting with a rectangular trench, in a compressible ocean, is presented.

Expressions for the flow field on both sides of the trench are derived.

The dynamic bottom pressure produced by the acoustic-gravity waves on both sides of the trench is measurable, though on the transmission side it decreases with the trench depth.

A successful recording of the bottom pressures could assist in the early detection of tsunami.