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Coupling parameters of the MIT OBS at two nearshore sites

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Abstract

A model representing the coupling of an ocean-bottom seismometer (OBS) to the seafloor as a mass-spring-dashpot system satisfactorily explains the results of transient tests performed on different instruments during the Lopez Island intercomparison test. In this paper, we compare the results obtained for the MIT OBS at Lopez Island to results from similar tests at a dockside site at Woods Hole, Massachusetts. The vertical instrument response at the Lopez Island site shows a highly damped resonance at a frequency of 22 Hz, whereas the response at the Woods Hole site shows a marked resonance at 13 Hz. The difference between the responses at the two sites can be qualitatively attributed to the difference between the surficial sediments.

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Authors and Affiliations

  1. MIT/WHOI Joint Program in Oceanography, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    Anne M. Tréhu

  2. Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    Sean C. Solomon

Authors
  1. Anne M. Tréhu
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  2. Sean C. Solomon
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Tréhu, A.M., Solomon, S.C. Coupling parameters of the MIT OBS at two nearshore sites. Mar Geophys Res 5, 69–78 (1981). https://doi.org/10.1007/BF00310312

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