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| Titel |
Instrument self-noise and sensor misalignment |
| VerfasserIn |
A. Gerner, G. Bokelmann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Improving seismic networks performances: from site selection to data integration (EGU2013 SM1.4/GI1.6 session) ; Nr. 36 (2013-09-17), S.17-20 |
| Datensatznummer |
250086174
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| Publikation (Nr.) |
 copernicus.org/adgeo-36-17-2013.pdf |
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| Zusammenfassung |
In this study we investigate self-noise of
RefTekTM 151-60A "Observer" broadband
seismometers (flat to velocity between 50 Hz down to T0=60 s,
f0≈17 mHz) using the coherency analysis method introduced by
Sleeman et al. (2006).
We present a self-noise model for this type of sensor and compare it to the
self-noise models of the standard observatory sensor STS-2 (Streckeisen) and
RefTek's 151-120 broadband seismometer, which both have natural periods
T0 of 120 s.
We further report on the sensitivity of this technique
to sensor misalignment and our success of eliminating leakage of the
omnipresent microseism noise into self-noise estimates by numerically
rotating seismic traces in order to find real self-noise. |
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