Results 31 to 40 of about 3,070 (215)

Research progress of the extraction body waves from ambient noise

open access: yes地震科学进展, 2021
The exploration of the deep structure of the earth is the core part of geophysical research. Seismic body waves can penetrate deep into the earth with a high resolution and it is an indispensable technical means for studying the internal structure of the
Qi Li   +5 more
doaj   +1 more source

Passive Seismic Interferometry for Subsurface Imaging

open access: yes, 2015
Seismic interferometry is a method that allows the retrieval of the seismic response at one receiver from a virtual source at the position of another receiver. The method was first proposed in the seismic exploration community by Claerbout (1968) for a horizontally layered subsurface.
Draganov, Deyan, Ruigrok, E.N.
openaire   +2 more sources

A raypath-consistent receiver correction in PS converted wave processing through seismic interferometry: New application for tropical zones New application for tropical zones

open access: yesUniversitas Scientiarum, 2019
The estimation of static corrections is an issue still unsolved for PS converted wave processing. Due to the PS converted wave usually arriving at the surface at non-zero angles, the surface consistent approach is no longer valid, and corrections ...
Andrés Salamanca, Luis Montes
doaj   +1 more source

Improving Surface Wave Retrieval From Traffic Noise by Deconvolution of the Decomposed Wavefield

open access: yesEarth and Space Science, 2023
Traffic noise is an important type of passive seismic data because it usually includes strong dispersive surface wave components and can be easily accessed.
Weiping Cao   +5 more
doaj   +1 more source

Passive seismic imaging of the Lower Palaeozoic in the Sudret area of Gotland, Sweden [PDF]

open access: yesSolid Earth
Passive seismic data were acquired together with active seismic data along a 2.8 km long profile in the Sudret area of Gotland, Sweden, as part of a feasibility study for storage of CO2 below the Baltic Sea. Seismic interferometry using cross-correlation
Z. Wang   +5 more
doaj   +1 more source

Estimating frequency-dependent shear wave velocity in near-surface sediment based on seismic interferometry

open access: yesEarth, Planets and Space, 2023
Near-surface seismic shear wave is a basic tool for seismic investigations. However, its frequency-dependent property is not fully investigated, especially by the in situ observation method.
Hao Zhang   +4 more
doaj   +1 more source

Continuous isolated noise sources induce repeating waves in the coda of ambient noise correlations

open access: yesSeismica, 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

Single-Pass Bistatic SAR Interferometry Using Fixed-Receiver Configurations: Theory and Experimental Validation

open access: yes, 2010
In this paper, bistatic interferometry using fixed-receiver configurations is addressed both theoretically and experimentally. The analytical expressions for interferometric phase and height sensitivity are derived, and a full interferometric processing ...
Mallorqui, Jordi J.   +2 more
core   +1 more source

Seismic interferometry, surface waves and source distribution [PDF]

open access: yes, 2008
Seismic interferometry can be used to estimate interreceiver surface wave signals by cross-correlation of signals recorded at each receiver. The quality of the estimated surface waves is controlled by the distribution of sources exciting the cross ...
Curtis, Andrew; id_orcid   +1 more
core   +1 more source

Monitoring seismic velocity changes at Turrialba using ambient seismic noise interferometry

open access: yes, 2023
Lynner, ColtonSeismic Ambient Noise Interferometry (SNI) is a prevalent tool for monitoring volcanic and associated seismic hazards. Reconstructing Empirical Green’s Functions by cross-correlation (CCs) of continuous seismic noise recordings allows us to
Oliva, Lazaro R.
core   +1 more source

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