Comparison of phase inversion and time-distance analysis of one-dimensional artificial seismic data

Details Comparison of phase inversion and time-distance analysis of one-dimensional artificial seismic data Comparison of phase inversion and time-distance analysis of one-dimensional artificial seismic data

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..207g&link_type=abstract

In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000,

Computer Science

3

Time-Distance Analysis

Scientific paper

We have studied the application of a phase inversion technique (Gough, Merryfield and Toomre 1991, 1993, 1998; Gough, Sekii and Toomre 1998, 2000) to stochastically excited damped oscillations in an inhomogeneous one-dimensional loop, using artificial seismic data (Gough, Sekii and Toomre 2000). It has been found that within a parameter range that might be relevant to the solar case, strong damping can significantly degrade inversions for the wave propagation speed. Here we analyse the same artificial data by a time-distance technique, to compare how the two techniques differ in their response to the presence of strong damping.

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