Array measurements of S-wave velocities from ambient vibrations
نویسندگان
چکیده
منابع مشابه
importance of mode detection in ambient noise array application for shear wave velocity profile determination
in this paper we are going to show the importance of mode identification in microtremor array analysis. the idea come from four concentric ambient noise array recordings with aperture 100 to 1000 meters, performed in southern urban area of tehran near the shrine of imam khomeini. these measurements were part of a comprehensive research project with the aim of determination of deep shear wave ve...
متن کاملLaboratory measurements of seismic P-wave velocities on rocks from the Betic chain (southern Iberian Peninsula)
Ultrasonic laboratory measurements of seismic compressional velocities (Vp) carried out on rock samples encompasing a wide range of metamorphic grades and lithologies from the Betic chain are presented. Measurements were performed at a high confining pressure on a total of 12 representative samples of the Alboran Domain (Internal Betics). P-wave mean velocities, referred to pressure conditions ...
متن کاملMeasurements of Mantle Wave Velocities and Inversion for Lateral Heterogeneity and Anisotropy 1 . Analysis of Great Circle Phase Velocities
Long-period (100-330 s) fundamental-mode Love and Rayleigh waves have been processed to measure the great circle phase velocities for about 200 and 250 paths, respectively. The observations are inverted for regionalized phase velocities and for an even-order harmonic expansion of the lateral velocity heterogeneity. The regionalized inversions achieve a maximum variance reduction of about 65% an...
متن کاملSurface Wave Dispersion Measurements and Tomography from Ambient Seismic Noise Correlation in China
We perform ambient noise tomography of China using the data from the China National Seismic Network and surrounding global and PASSCAL stations. The results so far are summarized below. (1) Dispersion measurements and tomography. For most of the station pairs, we retrieve good Rayleigh waveforms from ambient noise correlations using 18-months of continuous data at all distance ranges across the...
متن کاملExtraction of 3D Information from Circular Array Measurements for Auralization with Wave Field Synthesis
The state of the art of wave field synthesis (WFS) systems is that they can reproduce sound sources and secondary (mirror image) sources with natural spaciousness in a horizontal plane, and thus perform satisfactory 2D auralization of an enclosed space, based on multitrace impulse response data measured or simulated along a 2D microphone array. However, waves propagating with a nonzero elevatio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2004
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.2005.02331.x