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    Report of a workshop on technical approaches to construction of a seafloor geomagnetic observatory

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    WHOI-95-12.pdf (3.909Mb)
    Date
    1995-09
    Author
    Chave, Alan D.  Concept link
    Green, Arthur W.  Concept link
    Filloux, Jean H.  Concept link
    Law, Lawrie K.  Concept link
    Petitt, Robert A.  Concept link
    Rasson, Jean L.  Concept link
    Schultz, Adam  Concept link
    Spiess, Fred N.  Concept link
    Tarits, Pascal  Concept link
    Tivey, Maurice A.  Concept link
    Webb, Spahr C.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/514
    DOI
    10.1575/1912/514
    Keyword
     Geomagnetic observatory; Seafloor instrumentation; Long-term observations 
    Abstract
    This report considers the technical issues on sensors, data recording and transmission, control and timing, power, and packaging associated with constricting a seafloor geomagnetic observatory. Existing technologies either already in use for oceanographic purposes or adapted from terrestral geomagnetic observatories could be applied to measure the vector magnetic field components and absolute intensity with minimal development. The major technical challenge arises in measuring absolute direction on the seafloor because terrestral techniques are not transferrable to the deep ocean. Two solutions to this problem were identified. The first requires the development of an instrument which measures the instantaneous declination and inclination of the magnetic field relative to a north-seeking gyroscope and the local vertical. The second is a straightforward extension of a precision acoustic method for determining absolute position on the seafloor.
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    • Geology and Geophysics (G&G)
    • WHOI Technical Reports
    Suggested Citation
    Chave, A. D., Green, A. W., Filloux, J. H., Law, L. K., Petitt, R. A., Rasson, J. L., Schultz, A., Spiess, F. N., Tarits, P., Tivey, M., & Webb, S. C. (1995). Report of a workshop on technical approaches to construction of a seafloor geomagnetic observatory. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/514
     

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