Open AccessRESEARCH NOTE Stacking three‐component seismograms
Author(s) -
Kennett B. L. N.
Publication year - 2000
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1046/j.1365-246x.2000.00048.x
Subject(s) - exploit , stacking , component (thermodynamics) , seismogram , computer science , scalar (mathematics) , geology , algorithm , data mining , seismology , mathematics , physics , geometry , computer security , nuclear magnetic resonance , thermodynamics
Summary 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 × 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.