Results 41 to 50 of about 608,037 (261)
Stars in the age of micro-arc-second astrometry [PDF]
, 2007 The understanding and modeling of the structure and evolution of stars is based on statistical physics as well as on hydrodynamics. Today, a precise identification and proper description of the physical processes at work in stellar interiors are still ...
Alecian +17 more
core +2 more sources
The use of passive seismic interferometry for the monitoring of subsurface fluids – from shallow groundwater to native or storage gas reservoirs [PDF]
E3S Web of ConferencesPassive (ambient noise) seismic interferometry provides multiple ways to gather information about the subsurface seismic properties using recordings of the seismic ambient noise signal.
Kremer Thomas +6 more
doaj +1 more source
Green’s function representations for seismic interferometry
GEOPHYSICS, 2006 The term seismic interferometry refers to the principle of generating new seismic responses by crosscorrelating seismic observations at different receiver locations. The first version of this principle was derived by Claerbout (1968), who showed that the reflection response of a horizontally layered medium can be synthesized from the autocorrelation ...
Wapenaar, C.P.A. (author) +1 more
openaire +4 more sources
Progress in Earth and Planetary Science, 2018 Seismic interferometry is one of the most effective techniques for detecting temporal variations in seismic velocity caused by large earthquakes. Before the 2011 Tohoku-Oki earthquake (M w 9.0) near the Japan Trench, a slow slip event (SSE, M w 7.0) and ...
Miyuu Uemura +4 more
doaj +1 more source
Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure and data downsampling [PDF]
, 2005 Repeat-pass Interferometric Synthetic Aperture Radar (InSAR) provides spatially dense maps of surface deformation with potentially tens of millions of data points. Here we estimate the actual covariance structure of noise in InSAR data.
Lohman, Rowena B., Simons, Mark
core +2 more sources
Research progress of the extraction body waves from ambient noise
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
Combining seismology and spectropolarimetry of hot stars [PDF]
, 2014 Asteroseismology and spectropolarimetry have allowed us to progress significantly in our understanding of the physics of hot stars over the last decade. It is now possible to combine these two techniques to learn even more information about hot stars and
Briquet, Maryline +3 more
core +1 more source
Retrieving time-dependent Green's functions in optics with low-coherence interferometry [PDF]
, 2015 We report on the passive measurement of time-dependent Green's functions in the optical frequency domain with low-coherence interferometry. Inspired by previous studies in acoustics and seismology, we show how the correlations of a broadband and ...
Aubry, Alexandre +4 more
core +1 more source
Universitas 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
Earth 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