Research Note : RESEARCH NOTE Stacking three-component seismograms

Details Research Note : RESEARCH NOTE Stacking three-component seismograms Research Note : RESEARCH NOTE Stacking three-component seismograms

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000geoji.141..263k&link_type=abstract

Geophysical Journal International, Volume 141, Issue 1, pp. 263-269.

Astronomy and Astrophysics

Astronomy

5

Coherency, Stacking, Three-Component Seismograms

Scientific paper

Standard stacking procedures are based on the combination of many scalar traces, and can exploit the coherency of arrivals between traces using non-linear methods. Such stacks can be used with some success for three-component data but do not exploit the vector character of the seismic wavefield. A set of stacking methods are introduced to work directly with three-component data and include intercomponent coherency through 3 x 3 matrix measures. These techniques include extensions of both semblance and phase stacks. Such techniques allow the exploitation of cross-component information, which can be particularly valuable in the analysis of the S wavefield. Potential applications arise for the analysis of three-component records from controlled-source experiments, arrays of portable broad-band instruments and beam-forming at permanent monitoring installations.

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