This paper develops an averaging technique based on the combination of eigenfunction expansion method and collaboration to investigate multiple scattering effect SH wave propagation in a porous medium. The semi-analytical is conducted using Monto Carlo understand macroscopic dispersion attenuation phenomena stress solid due effects. verified by finite element analysis. Finally, simple homogeniz...

Reflectivity synthetic seismograms demonstrate that the type, layering and orientation of 1-D anisotropy influences strongly the coda of teleseismic P waves at periods T\1 sec, particularly P-SH converted waves. We assume the simplest form of anisotropy described by an elastic tensor with a symmetry axis ŵ of arbitrary orientation. The resulting phase velocities vary as cos 2j with respect to t...

Abstract. A major strong sudden stratospheric warming (SSW) occurred in the Southern Hemisphere (SH) stratosphere 2002 (hereafter referred to as SSW2002), which is one of most unusual winters SH. Following several warmings, polar vortex broke down midwinter. Eastward-traveling waves and their interaction with quasi-stationary planetary played an important role during this event. This study anal...

Abstract The propagation characteristics of SH waves along the circumferential direction in an orthotropic layer/piezoelectric column structure with a non-ideal interface are studied this paper. By solving governing equations, solutions to problem expressed by first and second Bessel functions. dispersion equation is obtained boundary conditions conditions. numerical examples provided show effe...

The separation of wave modes for isotropic elastic wavefields is typically done using Helmholtz decomposition. However, Helmholtz decomposition using conventional divergence and curl operators is not satisfactory for anisotropic media and leaves the different wave modes only partially separated. The separation of anisotropic wavefields requires more sophisticated operators which depend on local...

The separation of wave-modes for isotropic elastic wavefields is typically done using Helmholtz decomposition. However, Helmholtz decomposition using conventional divergence and curl operators in anisotropic media only partially separates the elastic wave-modes. The separation of anisotropic wavefields requires operators which depend on local material parameters. Wavefield separation operators ...