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Published as Interpretation, 2, no. 1, SA49-SA56, (2014)

Local skewness attribute as a seismic phase detector

Sergey Fomel% latex2html id marker 1367
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 WIDTH=and Mirko van der Baan% latex2html id marker 1369
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% latex2html id marker 1370
\setcounter{footnote}{1}\fnsymbol{footnote}Bureau of Economic Geology,
John A. and Katherine G. Jackson School of Geosciences
The University of Texas at Austin
University Station, Box X
Austin, TX 78713-8924
USA
sergey.fomel@beg.utexas.edu
Department of Physics
University of Alberta
CEB 11322 - 89 Avenue
Edmonton, Alberta T6G 2G7
Canada
Mirko.VanderBaan@ualberta.ca

Abstract:

We propose a novel seismic attribute, local skewness, as an indicator of localized phase of seismic signals. The proposed attribute appears to have a higher dynamical range and a better stability than the previously used local kurtosis. Synthetic and real data examples demonstrate the effectiveness of local skewness in detecting and correcting time-varying, locally-observed phase of seismic signals.




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2014-02-15