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Higher Rayleigh modes in western Europe
Author(s) -
Nolet Guust
Publication year - 1975
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl002i002p00060
Subject(s) - rayleigh wave , wavenumber , rayleigh scattering , geology , phase velocity , phase (matter) , seismology , group velocity , geodesy , measure (data warehouse) , surface wave , physics , optics , computer science , quantum mechanics , database
An array of standard long period stations is applied to measure phase velocities of seismic surface waves by way of frequency‐wavenumber analysis. The number of interfering modes is reduced by windowing the signal for successive group velocity intervals. The method is powerful, even with relatively small arrays: up to 6 higher Rayleigh modes at periods between 20 and 100 sec. have been resolved.