Now showing items 1-5 of 5

  • Ambient noise analysis and finite difference modelling of VLF borehole seismic data 

    Stephen, Ralph A.; Swift, Stephen A.; Bolmer, S. Thompson (Woods Hole Oceanographic Institution, 1987-03)
    This report describes a preliminary analysis of borehole seismic data to determine VLF/Sub-bottom Seismic Noise in the Atlantic and the preliminary results of finite difference modelling for a Cape Fear environment. Noise ...
  • Bathymetry and sediment thickness survey of the Hawaii-2 cable : cruise report for Kiwi expedition leg 2 on the R/V Roger Revelle 

    Stephen, Ralph A.; Swift, Stephen A.; Greaves, Robert J. (Woods Hole Oceanographic Institution, 1997)
    The primary purpose of this cruise was to identify at least two potential observatory sites along the Hawaii-2 cable that would be suitable for drilling a hole to basement. There is a funded program, the Hawaii-2 Observatory ...
  • SeisCORK meeting report 

    Stephen, Ralph A.; Pettigrew, Tom; Becker, Keir; Spiess, Fred N. (Woods Hole Oceanographic Institution, 2006-02)
    The purpose of this meeting was to explore design options to simultaneously acquire borehole seismic data and hydro-geological data (pressure, temperature, fluid sampling and microbiological sampling) on a single CORK ...
  • User's guide for FINDIF at SACLANTCEN 

    Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1992-05)
    FINDIF solves the elastic wave equation for a line source in two dimensions by the finite difference method (Virieux,1986; Stephen,1988b). The solution is carried out in the time domain for either pulse or CW sources. ...
  • A user’s manual for finite difference synthetic seismogram codes on the CYBER 205 and CRAY XMP-12 

    Hunt, Mary M.; Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1986-11)
    Over the past eight years, a software package has been developed to solve the elastic wave equation by the method of finite differences (Hunt et al., 1983; Stephen, 1983; Stephen, 1984a; Stephen, 1984b; Nicoletis, 1981). ...