Abstract
A lumped-parameter model was developed to predict the response of an ocean bottom seismometer, resting on relatively non-stiff sediments, to vertical ground-motion. The model predictions were compared with the response of an instrument on a foundation of foam rubber to a sinusoidal input. Comparison of the model data to the measured Lopez Island vertical transient test data showed that bearing pressure of the instrument in a nonuniform vertical soil profile causes certain instruments to experience a shear modulus higher than the mean.
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Zelikovitz, S.J., Prothero, W.A. The vertical response of an ocean bottom seismometer: Analysis of the Lopez Island vertical transient tests. Mar Geophys Res 5, 53–67 (1981). https://doi.org/10.1007/BF00310311
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DOI: https://doi.org/10.1007/BF00310311