Measurement of Earth's Free-Oscillations using a Pendulum
classification
⚛️ physics.geo-ph
physics.ed-ph
keywords
earthpendulumbasisbestcorrespondingdeviationseigenmodefree-oscillations
read the original abstract
One of the best ways to measure low-frequency eigenmode oscillations of the Earth is to monitor a simple pendulum responding to tilt. A theoretical basis for the method is given, by investigating a particular, well-known standing wave-the one with 53 minute period corresponding to oblate/prolate spheroidal deviations from the geoid.
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