Abstract
IN the course of our investigations into the composition, origin and propagation of microseisms we have computed a large number of power spectra. These spectra normally cover the range 0.08–0.50 c/s, but, after reading of the investigations of Haubrich, Munk and Snodgrass1 in which energy maxima of identical frequencies were observed in sea waves and microseisms, we decided to extend the long-period end of the spectra to about 0.02 c/s (50-sec period). On comparing the results with sea-wave spectra we were able to confirm their findings.
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References
Haubrich, R. A., Munk, W. H., and Snodgrass, F. E., Bull. Seism. Soc. Amer., 53, 27 (1963).
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HINDE, B., HATLEY, A. Comparative Spectra of Sea Waves and Microseisms. Nature 205, 1100–1101 (1965). https://doi.org/10.1038/2051100a0
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DOI: https://doi.org/10.1038/2051100a0
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