Why a big 2-D array to record microseisms?
, by Jon Claerbout, Steve Cole, Dave Nichols, Lin Zhang
We plan to set out a two-dimensional seismic array, with our 200 group recorders.
The initial goal is to measure an ermergent angle spectrum of the microseismic noise.
Our array will be designed to attenuate surface-travelling noise as much as possible.
The dominant steeply emerging energy is expected to be generated by the ocean surf 20km distant.
Such energy should enable imaing by the theorem that the (slant stacked) autocorrelation of
the microseism is the reflection seismorgram. Ultimately we hope to reproduce a portion of
conventional reflection image, and extend it in frequency or depth.
STANFORD