Point Seismic Array
Point Seismic Array : Co-located, inertial three-component seismograph, rotational sensor, and/or strain meter that can be used to perform seismic wave gradiometry. Although wave measurements are taken at a single observation point on the Earth, wave gradiometry produces estimates of wave parameters, such as horizontal slowness and azimuth, similar to large-aperture arrays of seismographs constructed for beamforming or frequencywavenumber analysis
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