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Signal and noise coherence determination for the Uppsala seismograph array station

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Summary

The Uppsala seismograph array station (UPSAS) has been tested with respect to mutual resemblance of body-wave signals recorded by the individual array sensors. Records ofP-, pP- andPKP-phases from ten teleseismic earthquakes and the HANDLEY explosion, in the magnitude range fromm b=5.8 tom b=6.9, are investigated in detail. Calculated coherence and cross-correlation functions confirm that the area selected for UPSAS provides extremely favourable conditions for the operation of an array station. High signal similarity across UPSAS shows no obvious dependence upon the location of the focus or the magnitude. Natural and man-made events provide comparable results.

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Authors and Affiliations

  1. Seismological Institute, Box 517, S-751 20, Uppsala 1, Sweden

    Ota Kulhánek

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  1. Ota Kulhánek
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Kulhánek, O. Signal and noise coherence determination for the Uppsala seismograph array station. PAGEOPH 109, 1653–1671 (1973). https://doi.org/10.1007/BF00876091

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  • DOI: https://doi.org/10.1007/BF00876091

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