Encyclopedia of Earthquake Engineering

2015 Edition
| Editors: Michael Beer, Ioannis A. Kougioumtzoglou, Edoardo Patelli, Siu-Kui Au

Seismometer Self-Noise and Measuring Methods

  • Adam T. RinglerEmail author
  • Reinoud Sleeman
  • Charles Robert Hutt
  • Lind S. Gee
Reference work entry
DOI: https://doi.org/10.1007/978-3-642-35344-4_175

Synonyms

Coherence analysis; Instrument noise; Seismometer testing

Introduction

Seismometer self-noise is usually not considered when selecting and using seismic waveform data in scientific research as it is typically assumed that the self-noise is negligibly small compared to seismic signals. However, instrumental noise is part of the noise in any seismic record, and in particular, at frequencies below a few mHz, the instrumental noise has a frequency-dependent character and may dominate the noise. When seismic noise itself is considered as a carrier of information, as in seismic interferometry (e.g., Chaput et al. 2012), it becomes extremely important to estimate the contribution of instrumental noise to the recordings.

Noise in seismic recordings, commonly called seismic background noise or ambient Earth noise, usually refers to the sum of the individual noise sources in a seismic recording in the absence of any earthquake signal. Site noise (e.g., cultural sources, nearby tilt...

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Adam T. Ringler
    • 1
    Email author
  • Reinoud Sleeman
    • 2
  • Charles Robert Hutt
    • 1
  • Lind S. Gee
    • 1
  1. 1.Albuquerque Seismological LaboratoryU.S. Geological SurveyAlbuquerqueUSA
  2. 2.Seismology DivisionRoyal Netherlands Meteorological Institute (KNMI)De BiltNetherlands