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Publications, presentations and other activities
Modeling multiple ray histories in layered media using ray fi eld maps
2012
by D.A. Kraaijpoel (KNMI), T.J. Moser (Moser Geophysical Services),
Abstract
<p>Seismic ray tracing in layered media becomes complicated and demanding when modeling for multiple ray histories and/or dense acquisition geometries. However, we observe some redundancies in current algo-<br />
rithms: (a) the same layers are crossed repeatedly by similar ray segments, and (b) the effort of tracing through a layer is determined by variations in the incoming wavefront rather than the medium. We deal with these redundancies by separating the modeling process in two stages: (stage 1) compute ray fi eld maps representing all ray segments between each pair<br />
of adjacent interfaces, then (stage 2) for each desired ray history assemble the complete ray fi eld from ray segments by iterative lookup in the ray<br />
eld maps.</p>
Biblographic data
| Kraaijpoel, D.A. and T.J. Moser, Modeling multiple ray histories in layered media using ray fi eld maps Abstract (html) |  |
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