Minimizing instrument effects in an ocean bottom seismometer

Authors

  • D.J. Dodds GeoAcoustics Inc., Aurora, Ont., Canada
  • D.M.F. Chapman
  • J.C. Osler
  • W.C. Risley

Keywords:

seismometers, ocean bottom seismometer, sea floor vibration, ambient noise, self noise, transfer function, sea floor motion, 1 to 50 Hz

Abstract

Ocean acousticians have traditionally made measurements of the pressure component of the sound field. Previously initial tests were reported by one of the authors on an existing ocean bottom seismometer (OBS) which uses velocity sensors (geophones). Geophysicists have used OBS instruments primarily to time discrete seismic events. This paper describes a new OBS designed to measure sea floor vibration amplitudes, down to the ambient noise level, in the 1-50 Hz range. The design goal was to minimize both the self noise (an additive effect), and the multiplicative effect of the transfer function which relates sea floor motion to the motion recorded by the OBS

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Published

1994-09-01

How to Cite

1.
Dodds D, Chapman D, Osler J, Risley W. Minimizing instrument effects in an ocean bottom seismometer. Canadian Acoustics [Internet]. 1994 Sep. 1 [cited 2021 Dec. 4];22(3):161-2. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/899

Issue

Section

Proceedings of the Acoustics Week in Canada