Modal solutions in stratified multi-layered fluid-solid half-space

2002 ◽  
Vol 45 (4) ◽  
pp. 358 ◽  
Author(s):  
Weitian CHEN
Keyword(s):  
Half Space ◽  
Layered Fluid

The inverse problem of the density and bulk modulus profiles of a layered fluid

1982 ◽  
Vol 72 (3) ◽  
pp. 809-820
Author(s):  
Shimon Coen
Keyword(s):  
Inverse Problem ◽  
Bulk Modulus ◽  
Half Space ◽  
Seismic Data ◽  
Necessary Conditions ◽  
Vertical Component ◽  
Inversion Algorithm ◽  
Surface Data ◽  
Layered Half Space ◽  
Layered Fluid

abstract It is shown that the density and bulk modulus profiles of a layered fluid half-space are uniquely determined from the vertical component of the particle velocity on the surface due to an impulsive point source on the surface. In addition, an estimate of the highest acoustic wave velocity in the layered half-space is required as well. The necessary conditions for the existence of the solution are discussed and a direct (noniterative) inversion algorithm is developed which constructs the density and bulk modulus profiles of the half-space from the surface data. The main limitations of this theory to real seismic data are briefly discussed.

Standing waves in layered fluid half-space

1967 ◽  
Vol 57 (5) ◽  
pp. 1009-1016
Author(s):  
I. N. Gupta
Keyword(s):  
Free Surface ◽  
Velocity Distribution ◽  
Half Space ◽  
Particle Velocity ◽  
Standing Waves ◽  
Angle Of Incidence ◽  
Compressional Waves ◽  
Incident Waves ◽  
Layered Fluid

abstract The existence of standing waves in a horizontally-layered fluid half-space is established for plane harmonic compressional waves propagating from below. The angle of incidence and the velocity-distribution within the layers are assumed to be arbitrary. Expressions are derived for the particle velocity at the free surface and at any given depth. The results show features similar to those for normally incident waves in a multilayered solid half space.

On a technique for deriving explicit transfer matrices of orthotropic layers

2015 ◽  
Vol 37 (4) ◽  
pp. 303-315 ◽  
Author(s):  
Pham Chi Vinh ◽  
Nguyen Thi Khanh Linh ◽  
Vu Thi Ngoc Anh
Keyword(s):  
Wave Propagation ◽  
Explicit Form ◽  
Half Space ◽  
Transfer Matrix ◽  
Rayleigh Waves ◽  
Secular Equation ◽  
Transfer Matrices ◽  
Orthotropic Layer ◽  
Wave Propagation Problem ◽  
Arbitrary Thickness

This paper presents  a technique by which the transfer matrix in explicit form of an orthotropic layer can be easily obtained. This transfer matrix is applicable for both the wave propagation problem and the reflection/transmission problem. The obtained transfer matrix is then employed to derive the explicit secular equation of Rayleigh waves propagating in an orthotropic half-space coated by an orthotropic layer of arbitrary thickness.

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