Seismic Techniques and Imaging Methods

  • Henrys, S.A., Woodward, D.J., Okaya, D., and Yu, J., 2004, Mapping the Moho beneath the Southern Alps continent-continent collision, New Zealand, using wide-angle reflections, Geophys. Res. Letts. 31, L17602, doi:10.1029/2004GL020561.
  • Okaya, D., and McEvilly, T., 2003, Elastic wave propagation in anisotropic crustal material possessing arbitrary internal tilt, Geophys. J. Int., 153, 344-358. Elastic tensor rotations for fabric media within wave propagation calculations.
  • Okaya, D., Stern, T., Holbrook, S., van Avendonk, H., Davey, F., and Henrys, S., 2003, Imaging a plate boundary using double-sided onshore-offshore seismic profiling, Leading Edge, 22, 256-260.
  • Okaya, D., Henrys, S., and Stern, T., 2002, “Super-gathers” across the South Island of New Zealand: double-sided onshore-offshore seismic imaging of a plate boundary, Tectonophysics, 355, 247-263. Seismic imaging across the land-marine coastlines when the land is relatively narrow..
  • Hole, J. A., Catchings, R. D., St. Clair, K. C., Rymer, M. J., Okaya, D. A., and Carney, B. J., 2001, Steep-dip seismic imaging of the shallow San Andreas Fault near Parkfield, Science, 294, 1513-1515. Turning ray migration.
  • Okaya, D., 1995, Spectral properties of the earth’s contribution to seismic resolution, Geophysics, 60, 241-251. Concept of spectral bands and notches that underlie the seismic exploration method of spectral decomposition.
  • Chakraborty, A., and Okaya, D., 1995, Frequency-time decomposition of seismic data using wavelet based methods, Geophysics, 60, 1906-1916. An early paper on discrete/continuous wavelet transforms and matching pursuit decomposion, as applied to seismic data.
  • Okaya, D., Karageorgi, E., McEvilly, T., and Malin, P., 1992, Removing vibrator-induced correlation artifacts by filtering in frequency-uncorrelated time space, Geophysics, 57, 916-926. Application of filtering seismograms in STFT space.
  • Okaya, D. A., and Jarchow, C. M., 1989, Extraction of deep crustal reflections from shallow Vibroseis data using extended correlation, Geophysics, 54, 555-562. Processing technique that can extract Moho and other deeper reflections from industry seismic reflection data, under certain acquisition conditions.