Interferometric trav eltimetomography

Min Zhou; Gerard T. Schuster

doi:10.1190/1.1815871

Interferometric trav eltimetomography

Min Zhou^*, Gerard T. Schuster

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Seismic data are sometimes corrupted by a source with au unknown origin time, receiver-static errors, source-static errors due to source mislocation, and/or an unknown source location. Such problems can be fatal for travel- time tomography. As a potential remedy, we propose the method of Iuterferometric Traveltime Tomography (ITT) where the phase delays bet w een the first arriads at tw o different receivers are inverted for the shyness field. In principle, the difference between the first arrival travel- times at tw o differert receivers can eliminate the unknown origin time of the source fuuctionwis ell as the source- static error. Syu thetic tests on the surface-refract ion data and crossw ell data with source-timing shifts show that ITT is effective in eliminating the source-timing shifts.

Original language	English (US)
Pages (from-to)	2138-2141
Number of pages	4
Journal	SEG Technical Program Expanded Abstracts
Volume	19
Issue number	1
DOIs	https://doi.org/10.1190/1.1815871
State	Published - Jan 1 2000
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2000 Society of Exploration Geophysicists.

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geophysics

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AB - Seismic data are sometimes corrupted by a source with au unknown origin time, receiver-static errors, source-static errors due to source mislocation, and/or an unknown source location. Such problems can be fatal for travel- time tomography. As a potential remedy, we propose the method of Iuterferometric Traveltime Tomography (ITT) where the phase delays bet w een the first arriads at tw o different receivers are inverted for the shyness field. In principle, the difference between the first arrival travel- times at tw o differert receivers can eliminate the unknown origin time of the source fuuctionwis ell as the source- static error. Syu thetic tests on the surface-refract ion data and crossw ell data with source-timing shifts show that ITT is effective in eliminating the source-timing shifts.

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Interferometric trav eltimetomography

Abstract

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