Ambient Seismic Noise Analysis
Response of hydrothermal system to stress transients at Lassen Volcanic Center, California, inferred from seismic interferometry with ambient noise
... the seismic sta- tion is four and consisted of one three-component sensor, LDH and three short-period vertical sensors, LEL, LME, and ...our analysis, dt (and dv/v) measurements were limited to use ...
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Coseismic changes in subsurface structure associated with the 2018 Hokkaido Eastern Iburi Earthquake detected using autocorrelation analysis of ambient seismic noise
... In order to locate the area that corresponded with the waveform correlation degradation, we carried out the fol- lowing analysis. First, we divided the target area into 0.5- km side cubic blocks and computed the ...
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Improving the quality of empirical Green's functions, obtained by cross-correlation of high-frequency ambient seismic noise
... In Fig. 9, we present only EGFs that probably also con- tain body waves because other EGFs, namely those calcu- lated for the western part in the band of 5–10 Hz and for the eastern part in the band of 2–5 Hz, contain ...
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Determination of temporal changes in seismic velocity caused by volcanic activity in and around Hakone volcano, central Japan, using ambient seismic noise records
... the analysis of ACFs of ambient noise, two distinct temporal changes in the subsurface structure in the Hakone volcanic and geothermal region were clearly detected during the 2013 swarm activity and ...
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A novel horizontal to vertical spectral ratio approach in a wired structural health monitoring system
... ent noise with preliminary seismic ...Wavelet analysis in HVSR has been applied by Carniel et ...wavelet analysis method (namely the ability to analyse data in both time and frequency domain) ...
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A SOLUTION TO THE PROBLEM OF INTERPRETING VERY LONG TIME SERIES OF AMBIENT NOISE AS MEASURED AT VERY SPARSE NETWORKS
... when ambient noise is highly directional in order to determine a cor- rection factor based on the angle of approaching energy that should be applied before sur- face wave dispersion analysis ...the ...
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Ambient noise tomography in the Naruko/Onikobe volcanic area, NE Japan: implications for geofluids and seismic activity
... In the third stage, we performed the dispersion curve measurement. Conventionally, frequency-time analysis (FTAN) (e.g., Dziewonski et al. 1969; Bensen et al. 2007) has been used in most ambient ...
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Near-surface structure of the North Anatolian Fault zone from Rayleigh and Love wave tomography using ambient seismic noise
... Our analysis of the azimuthal variation in phase velocities finds that regional seismic anisotropy is likely structure ...of seismic anisotropy, provides insight into the potential for strain ...
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New developments in ambient noise analysis to characterise the seismic response of landslide-prone slopes
... signal noise coming from differ- ent directions; (ii) a certain number of time windows has to be discarded from the analysis if the recordings are charac- terised by transient signal coming from temporary ...
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Characterization of ambient seismic noise near a deep geothermal reservoir and implications for interferometric methods: a case study in northern Alsace, France
... passive seismic imaging technique has emerged. Known as ‘ ambient noise tomography ’ , it uses seismic noise as a permanent source of energy that propagates through the target ...of ...
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Structure of the Suasselkä postglacial fault in northern Finland obtained by analysis of local events and ambient seismic noise
... using analysis of lo- cal seismic events and ambient seismic noise recorded by the temporary DAFNE array in the northern Fennoscandian ...passive seismic array experiment was to ...
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Integral analysis of seismic refraction and ambient vibration survey for subsurface profile evaluation
... In multidisciplinary era, most researchers diversify their research area with an alternative method to improve the existing conventional method [11]. Surface investigation using alternative method via geophysical method ...
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Exploiting Seismic Waveforms of Ambient Noise and Earthquakes
... This new algorithm is based on previous travel-time sub-event modeling (Duputel et al., 2012; Kikuchi and Kanamori, 1991; Tsai et al., 2005), but does not require the subjective hand picking of coherent arrivals. Given a ...
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GUI Implementation of UAC Using DPSK, PN, Hadamard, Walsh, Barker and OVSF Code
... The GUI is designed into four section, in the first section as shown in figure1, the ocean parameters like wind speed, salinity, temperature, Ph value, Range (Distance between the transmitter and receiver), depth of the ...
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Moon as a Giant Detector for Neutrino Streams from Pulsars
... Spectral analysis of the resulting implementation reveal hidden periodicity in radioactivity, coinciding with the period of natural oscillations of the ...marked seismic, geophysical and nuclear-geophysical ...
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Broadband Surface Wave Tomography of Ireland, Britain and Other Regions
... Fig. C.2 presents "stacks" of phase-velocity maps. Phase-velocity maps were computed at a 1-s interval within the period ranges indicated and then averaged, so as to reduce random errors in the maps. The ...
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ANS1R Ambient Noise Sensor Output Module
... the ambient noise level information, it regulates the amount of gain added to the ...the ambient noise threshold has been exceeded, the ANS1R will ramp up to the max gain setting during the ...
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Probabilistic Seismic Hazard Assessment and Geotechnical Seismic Micro-zonation of Kangavar with Ambient Vibration and Electrical Resistivity Analysis
... over 51352 persons (according to 2015 statistics). Zagros FTB extended from eastern parts of Turkey to Oman Sea, consists of long folds affecting the Phanerozoic sediments of Arabian Plate on eastern edge [1]. The Main ...
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Density estimation implications of increasing ambient noise on beaked whale click detection and classification
... that ambient noise might represent a source of bias in the reported density ...background ambient noise as compared to the 6 day data ...
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Monitoring of Noise During Ganeshotsav
... transmitted. Noise has been defined as unwanted sound. Noise is a disturbance to the human environment which is escalating at a high ...of noise on human and environment due to the increase in ...
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