Results 51 to 60 of about 608,037 (261)

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

Asteroseismology and Interferometry [PDF]

open access: yes, 2007
Asteroseismology provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Recent developments, including the first systematic studies of solar-like pulsators, have boosted the impact of this field of research
A Baglin   +531 more
core   +5 more sources

Shear wave structure of a transect of the Los Angeles basin from multimode surface waves and H/V spectral ratio analysis [PDF]

open access: yes, 2020
We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both ...
Beroza, Gregory C.   +3 more
core  

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

open access: yesLaser &Photonics Reviews, EarlyView.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi   +7 more
wiley   +1 more source

Co-seismic deformation during the M_w 7.3 Aqaba earthquake (1995) from ERS-SAR interferometry [PDF]

open access: yes, 2000
The M_w 7.3 1995 Aqaba earthquake is the largest instrumental earthquake along the Dead Sea Fault. We complement previous seismological studies by analyzing co‐seismic ground displacement from differential interferometry computed from ERS images spanning
Avouac, Jean-Philippe   +2 more
core  

Precision Stellar Astrophysics in the Kepler Era

open access: yes, 2016
The study of fundamental properties (such as temperatures, radii, masses, and ages) and interior processes (such as convection and angular momentum transport) of stars has implications on various topics in astrophysics, ranging from the evolution of ...
Huber, Daniel
core   +1 more source

Combined use of repeated active shots and ambient noise to detect temporal changes in seismic velocity: application to Sakurajima volcano, Japan [PDF]

open access: yes, 2017
Additional file 1. Comparison of the results of coda-wave interferometry and seismic interferometry on the almost identical wave paths. Gray dots in top two panels are daily dv/v values obtained from seismic interferometry.
Hisashi Nakahara   +2 more
core   +3 more sources

Linking Stress Drop and Slip Heterogeneity to Assess Source Rupture Directivity for Earthquakes in Central Italy

open access: yesTerra Nova, EarlyView.
ABSTRACT In this study, we examine the relationship between Brune stress drop and fault slip where the stress drop is estimated using the Empirical Green's Function (EGF) method and slip distribution is derived from seismic and geodetic data inversion.
Calderoni Giovanna   +2 more
wiley   +1 more source

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