Results 121 to 130 of about 608,037 (261)

Extracting information from noise [PDF]

open access: yes, 2010
Seismic waves created by sources such as wind, the ocean and human activity propagate inside the Earth all the time. Such waves are often regarded as ‘noise’ by seismologists, however, they travel through the Earth in exactly the same way as those ...
Baptie, Brian
core  

Study on crustal deformation of Wenchuan Ms8.0 earthquake using wide-swath ScanSAR and MODIS

open access: yesGeodesy and Geodynamics, 2011
This paper presents a broad-range study of the co-seismic deformation field of Wenchuan Ms8.0 earthquake by ScanSAR interferometry. The results show co-seismic displacements ranging from −19.8 on the footwall side of the seismogenic fault to 73.6 cm on ...
Xu Caijun, Wang Hao, Jiang Guoyan
doaj   +1 more source

Imaging Torfajökull's Magmatic Plumbing System With Seismic Interferometry and Phase Velocity Surface Wave Tomography

open access: yesJournal of Geophysical Research: Solid Earth, 2019
Torfajökull volcano, Iceland, has not erupted since 1477. However, intense geothermal activity, deformation, and seismicity suggest a long‐lasting magmatic system.
J. Martins   +6 more
semanticscholar   +1 more source

Robust seismic velocity change estimation using ambient noise recordings

open access: yes, 2016
We consider the problem of seismic velocity change estimation using ambient noise recordings. Motivated by [23] we study how the velocity change estimation is affected by seasonal fluctuations in the noise sources. More precisely, we consider a numerical
Daskalakis, E.   +5 more
core   +1 more source

Receiver functions from seismic interferometry: a practical guide

open access: yesGeophysical Journal International, 2019
IRIS Data Services are funded through the Seismological Facilities for the Advancement of Geoscience and EarthScope (SAGE) Proposal of the National Science Foundation under Cooperative Agreement EAR-1261681.
B. Tauzin   +2 more
semanticscholar   +1 more source

Nondestructive testing of railway embankments by measuring multi-modal dispersion of surface waves induced by high-speed trains with linear geophone arrays

open access: yesSeismica
To effectively address engineering challenges and risks, it is crucial to characterize mechanical properties of near-surface environments. The Multichannel Analysis of Surface Waves (MASW) has proven to be a valuable active seismic imaging technique by ...
José Cunha Teixeira   +11 more
doaj   +1 more source

Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry

open access: yesInternational Journal of Geophysics, 2011
With controlled-source seismic interferometry we aim to redatum sources to downhole receiver locations without requiring a velocity model. Interferometry is generally based on a source integral over cross-correlation (CC) pairs of full, perturbed (time ...
Joost van der Neut   +4 more
doaj   +1 more source

Lithospheric image of the Central Iberian Zone (Iberian Massif) using global-phase seismic interferometry

open access: yesSolid Earth, 2019
. The Spanish Central System is an intraplate mountain range that divides the Iberian Inner Plateau in two sectors – the northern Duero Basin and the Tajo Basin to the south.
J. Andrés   +6 more
semanticscholar   +1 more source

Uncertainty quantification in seismic interferometry

open access: yes, 2022
It is a well-established principle that cross-correlating wavefield observations at different receiver locations yields new responses that, under certain conditions, provide a useful estimate of the Green's function between the receiver locations. This principle, known as wavefield interferometry, is a powerful technique that transforms previously ...
openaire   +2 more sources

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