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pure and applied geophysics

, Volume 109, Issue 1, pp 1653–1671 | Cite as

Signal and noise coherence determination for the Uppsala seismograph array station

  • Ota Kulhánek
Article

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.

Keywords

Coherence Coherence Function Seismic Array Noise Sample Sumatra Earthquake 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser-Verlag 1973

Authors and Affiliations

  • Ota Kulhánek
    • 1
  1. 1.Seismological InstituteUppsala 1Sweden

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