Report of a workshop on technical approaches to construction of a seafloor geomagnetic observatory
By: by Alan D. Chave ... [et al.]
Contributors: Chave, Alan D.; Woods Hole Oceanographic Institution.
Series: WHOI -- 95-12.; WHOI (Series) -- 95-12.
Publisher: Woods Hole Oceanographic Institution
Published: 1995
Place of publication: Woods Hole, Mass
Language: eng
Number of pages: 43
Subjects: Geomagnetic observatories.; Geomagnetism -- Remote sensing.
Description: 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.
Notes: "September 1995."

"Technical report."

"Funding was provided by the National Science Foundation under grant EAR94-21712 and the National Aeronautics and Space Administration."

Includes bibliographical references (leaves 31-32)

Also issued online.