Statistics – Computation
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3612308l&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 12, CiteID L12308
Statistics
Computation
5
Seismology: Volcano Seismology (8419), Seismology: Computational Seismology, Seismology: Earthquake Source Observations (1240), Seismology: General Or Miscellaneous
Scientific paper
Time reversal of seismic wavefields recorded at active volcanoes may provide images of the source process for long-period (LP) or volcanic tremor events directly, independent of assumptions about extent, geometry and mechanics of the source. Time reversal methods involve propagating the original time series from many receiver locations back into the medium. The reversed signals then focus at their origin due to constructive interference, elucidating the source location, extent and radiation pattern. In practice, focusing may be blurred due to inaccurate Earth models or sparse sampling of the wavefield at the surface. Here, we investigate the feasibility of this method for several synthetic volcanic tremor sources and present a gallery of time reversal source images. Wave propagation is computed numerically in a 2D volcano model with realistic topography. Our results indicate that time reversal may be applicable in volcanic settings, possibly yielding new insights into volcano-seismic LP or tremor sources.
Bean Christopher J.
Lokmer Ivan
O'Brien Gareth S.
Stich Daniel
No associations
LandOfFree
Time reversal imaging of synthetic volcanic tremor sources does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Time reversal imaging of synthetic volcanic tremor sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time reversal imaging of synthetic volcanic tremor sources will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1782873