Spatial Coherence of Surface Waves
Abstract
Using spatial coherency estimates of Rayleigh and Love waves recorded at ALPA, LASA and NORSAR, it is demonstrated that for a particular frequency the wave propagation cannot be described by a unique wavevector. Instead, the propagation is better described by a distribution in the wavenumber domain or, in physical terms, a distribution in azimuth and phase velocity. In general the coherency in the mean direction of propagation, which is a function of the velocity distribution, stays high relative to the coherency along the mean wavefront, which is a function of the azimuthal distribution.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 20, 1972
- Accession Number
- AD0756897
Entities
People
- H. Mack
Organizations
- Teledyne Technologies