Results 21 to 30 of about 1,799 (182)
Introducing noisi: a Python tool for ambient noise cross-correlation modeling and noise source inversion [PDF]
Solid Earth, 2020 We introduce the open-source tool noisi for the forward and inverse modeling of ambient seismic cross-correlations with spatially varying source spectra.
L. Ermert +6 more
doaj +1 more source
Mapping the basement of the Cerdanya Basin (eastern Pyrenees) using seismic ambient noise [PDF]
Solid Earth, 2023 Ambient seismic noise acquired in the Cerdanya Basin (eastern Pyrenees) is used to assess the capability of different methodologies to map the geometry of a small-scale sedimentary basin.
J. Díaz +9 more
doaj +1 more source
Continuous isolated noise sources induce repeating waves in the coda of ambient noise correlations
Seismica, 2023 Continuous excitation of isolated noise sources leads to repeating wave arrivals in cross correlations of ambient seismic noise, including throughout their coda. These waves propagate from the isolated sources.
Sven Schippkus +2 more
doaj +1 more source
Seismica, 2023 Seismic imaging and monitoring of the near-surface structure are crucial for the sustainable development of urban areas. However, standard seismic surveys based on cabled or autonomous geophone arrays are expensive and hard to adapt to noisy ...
Rafał Czarny, Tieyuan Zhu, Junzhu Shen
doaj +1 more source
Terrae Didatica, 2019 Rainfall-induced variations in pore water pressures are the most common sources of significant disasters like landslides, dams’ failure, and other structural collapses. This study aimed at communicating preliminary results of seasonal monitoring of the Sobradinho landslide, Brasilia, Brazil, using ambient seismic noise.
Yawar Hussain +7 more
openaire +1 more source
Synchronizing seismic networks with ambient noise [PDF]
Geophysical Journal International, 2008 SUMMARY The technique of retrieving Green’s functions by pairwise correlation of a random wavefield is used to estimate the stability of the timing system of a seismic network. The method is demonstrated with data from a network consisting of stations with four independent clocks and GPS-receivers.
openaire +3 more sources
The Search of Diffusive Properties in Ambient Seismic Noise
Bulletin of the Seismological Society of America, 2021 ABSTRACTAmbient seismic noise (ASN) is becoming of interest for geophysical exploration and engineering seismology, because it is possible to exploit its potential for imaging. Theory asserts that the Green’s function can be retrieved from correlations within a diffuse field.
Piña-Flores, José +4 more
openaire +2 more sources
Single‐station monitoring of volcanoes using seismic ambient noise [PDF]
Geophysical Research Letters, 2016 AbstractSeismic ambient noise cross correlation is increasingly used to monitor volcanic activity. However, this method is usually limited to volcanoes equipped with large and dense networks of broadband stations. The single‐station approach may provide a powerful and reliable alternative to the classical “cross‐station” approach when measuring ...
Raphael S. M. De Plaen +4 more
openaire +5 more sources
Seismic Gradiometry using Ambient Seismic Noise in an Anisotropic Earth [PDF]
Geophysical Journal International, 2017 We introduce a wavefield gradiometry technique to estimate both isotropic and anisotropic local medium characteristics from short recordings of seismic signals by inverting a wave equation. The method exploits the information in the spatial gradients of a seismic wavefield that are calculated using dense deployments of seismic arrays.
De Ridder, Sjoerd +1 more
openaire +2 more sources
Dead Sea Basin Imaged by Ambient Seismic Noise Tomography [PDF]
Pure and Applied Geophysics, 2011 In the framework of the Dead Sea Integrated Research project (DESIRE), 59 seismological stations were deployed in the region of the Dead Sea Basin. Twenty of these stations recorded data of sufficiently high quality between May and September 2007 to be used for ambient seismic noise analysis.
Stankiewicz, J. +3 more
openaire +5 more sources