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Authors: Strollo, A.* 
Bindi, D.* 
Parolai, S.* 
Jäckel, K. H.* 
Title: On the suitability of 1 s geophone for ambient noise measurements in the 0.1–20Hz frequency range: experimental outcomes
Issue Date: Feb-2008
Series/Report no.: 1/6 (2008)
DOI: 10.1007/s10518-008-9061-x
Keywords: Short-period sensor, Broad-band sensor, Noise measurements
Coherency analysis
Subject Classification04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques 
Abstract: Following the ongoing debate about suitability of short-period sensor for seismic noise measurements at frequencies lower than 1Hz, in this study we compare recordings from two different seismometers (Güralp CMG-3ESPC and Mark L4C-3D) installed side by side in the GeoForschungsZentrum laboratory. The comparison carried out in terms of Power Spectral Density and coherency analysis shows an excellent agreement between the shortperiod and the broad-band recordings in the frequency band 0.2–20 Hz. Therefore, this result highlights that with a calibrated short-period sensor one can obtain the same results that would be obtained by using a broad-band seismometer in the band of engineering interest.
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