Normal mode multiplet coupling on an aspherical, anelastic earth
نویسندگان
چکیده
منابع مشابه
Multiplet - multiplet coupling due to lateral heterogeneity : asymptotic effects on the amplitude and frequency of the Earth ’ s normal modes
We show that, to order zero, these coupling terms introduce a small shift in epicentral distance into the expression for the long period seismogram obtained by normal mode summation. This shift depends on the difference between the great circle and the minor arc averages of the local frequency. The coupling terms thus permit us to reconcile results obtained by normalmode summation and by a prop...
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S U M M A R Y We present an alternative to the classical mode coupling method scheme often used in global seismology to compute synthetic seismograms in laterally heterogeneous earth model and Frechet derivatives for tomographic inverse problem with the normal modes first-order Born approximation. We start from the first-order Born solution in the frequency domain and we use a numerical scheme ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1992
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1992.tb00551.x