Recording, Identification, and Measurement of Surface Wave Parameters

Abstract

The interpretation of surface wave data to study the Earth’s interiors in different regions and to determine the structure of seismic sources must involve, as an initial step, routine measurement of surface-wave spectral characteristics along a great number of epicenter-station paths (Levshin, 1980). Such measurements call for the collection and standardized analysis of extensive experimental data, viz., seismograms that are recorded at seismic stations. In this process one transforms the data to a unified format, corrects them for instrument response, identifies signals of interest, measures spectral signal parameters. The present chapter is concerned with every step of this analysis of raw data, the emphasis being on methods in use for identifying and measuring signal parameters.