• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • WHOI Technical Memoranda
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • WHOI Technical Memoranda
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Progress report on the development of the seafloor borehole array seismic system (phase II) : July 14, 1992 to January 31, 1996

    Thumbnail
    View/Open
    WHOI-01-96.pdf (8.536Mb)
    Date
    1996-06
    Author
    Stephen, Ralph A.  Concept link
    Peal, Kenneth R.  Concept link
    Bolmer, S. Thompson  Concept link
    Gould, Matthew R.  Concept link
    Koelsch, Donald E.  Concept link
    Orcutt, John A.  Concept link
    Vernon, Frank L.  Concept link
    Offield, G.  Concept link
    Willoughby, David F.  Concept link
    Hollinshead, C. B.  Concept link
    Spiess, Fred N.  Concept link
    Hildebrand, John A.  Concept link
    Zimmerman, Richard  Concept link
    Austin, Gary  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/8078
    DOI
    10.1575/1912/8078
    Keyword
     Seismology; Borehole gravimetry; Ocean bottom; Oceanographic instruments 
    Abstract
    The Seafloor Borehole Array Seismic System (SEABASS) was originally developed to record autonomously on the seafloor the signals received on a four-sonde three-component borehole geophone array in the VLF band (2-50Hz)(Stephen eta!., 1994). The system is designed to use the wireline re-entry capability (Spiess, 1993; Spiess eta!., 1992) to install and retrieve the seafloor instrumentation (Figures 1 and 2). Following the successful demonstration of this technology on the LFASE (Low Frequency Acoustic-Seismic Experiment) project in September 1989, it was decided to extend the capability to broadband (1000sec-5Hz) borehole seismometers which could be used for permanent seafloor seismic observatories in the Ocean Seismic Network (Orcutt and Stephen, 1993; Purdy and Dziewonski, 1988; Purdy and Orcutt, 1995; Stephen, 1995; Sutton and Barstow, 1990; Sutton eta!., 1988; Sutton eta!., 1965). The Broadband Borehole Seismic System (B3S2) is the prototype system for permanent broadband borehole seismic observatories on the seafloor. It has three major components: i) a broadband borehole seismometer, the Teledyne 54000, modified for seafloor operations by Scripps-IGPP; ii) the re-entry system provided by Scripps-MPL; and iii) the seafloor recording system developed by WHO I. Because of the similarity of the seafloor recording system to SEABASS we have named this new system SEABASS-ll. This report discusses the development of SEABASS-Il at WHOI in the period from July 14, 1992 to January 31, 1996. The motivation for the project and a work statement are contained in WHOI proposals 7016 and 7016.1. This report is a collection of documentation prepared while the work was being carried out. Some of the issues discussed in early memos were subsequently changed. Modifications and further testing of SEABASS-ll, as well as final system integration tests with the borehole andreentry systems (both of which are also still being modified and tested) have still to be carried out in preparation for the OSN Pilot Experiment Cruise in Spring 1997. This is a preliminary report only and presents work in progress. It will be useful to the engineering team as a historical reference of the sequence of events in the development of SEABASS-ll but it should not be considered as a technical manual for the instrumentation.
    Collections
    • Geology and Geophysics (G&G)
    • WHOI Technical Memoranda
    Suggested Citation
    Working Paper: Stephen, Ralph A., Peal, Kenneth R., Bolmer, S. Thompson, Gould, Matthew R., Koelsch, Donald E., Orcutt, John A., Vernon, Frank L., Offield, G., Willoughby, David F., Hollinshead, C. B., Spiess, Fred N., Hildebrand, John A., Zimmerman, Richard, Austin, Gary, "Progress report on the development of the seafloor borehole array seismic system (phase II) : July 14, 1992 to January 31, 1996", 1996-06, DOI:10.1575/1912/8078, https://hdl.handle.net/1912/8078
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      A sea floor winch system for wire line re-entry of deep sea boreholes 

      Berteaux, Henri O.; Bocconcelli, Alessandro; Koelsch, Donald E.; Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1990-12)
      The following report describes the scientific motivations for the use of a Sea Floor Winch System for Wireline Re-entry of Deep Sea Boreholes and presents a conceptual design for the winch system.
    • Thumbnail

      LFASE borehole array data acquisition and reduction summary 

      Bolmer, S. Thompson; Swift, Stephen A.; Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1991-09)
      On the Low Frequency Acoustic - Seismic Experiment (LFASE), carried out at DSDP hole 534A in August, 1989, WHOI was responsible for acquiring data from a twelve channel borehole seismic array. Data were acquired both ...
    • Thumbnail

      Tests of the broadband borehole seismic system (B³S²) at Scripps IGPP and the Pinon Flat Observatory : October 1994 to June 1995 

      Stephen, Ralph A.; Orcutt, John; Peal, Kenneth R.; Vernon, Frank L.; Austin, Gary; Bolmer, S. Thompson; Gould, Matthew R.; Koelsch, Donald E.; Hollinshead, C. B.; Offield, Glen; Willoughby, David F. (Woods Hole Oceanographic Institution, 1997-08)
      The broadband borehole seismic system (B3S2) is being developed as one component of the Ocean Seismic Network (OSN) Pilot Experiment which will be carried out at the OSN-1 Site off Hawaii in Winter 1998. The other major ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo