R. Sleeman Charles R. Hutt Lind S. Gee Adam T. Ringler 2014 <p><span>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.&nbsp;</span><span class="CitationRef"><a href="http://link.springer.com/referenceworkentry/10.1007%2F978-3-642-36197-5_175-1#CR5">2012</a></span><span>), it becomes extremely important to estimate the contribution of instrumental noise to the recordings.</span></p> application/pdf 10.1007/978-3-642-36197-5_175-1 en Springer Berlin Heidelberg Seismometer Self-Noise and Measuring Methods chapter