Methods for Quantitative Interpretation of Observations

Abstract

Measured characteristics of surface waves (phase and group velocities, amplitude and phase spectra) are used in seismological interpretation to solve various problems, such as the distribution of velocity and attenuation along the vertical and on the horizontal plane, and the study of earthquake mechanisms. Since this monograph is concerned with surface wave fields in laterally varying media, we shall mainly discuss those aspects of interpretation which are associated with lateral inhomogeneities. These include lateral variations proper in the upper earth structure, as well as the effects due to lateral inhomogeneity, and which should be taken into account in solving other problems (for example, for earthquake mechanism determinations).