Results 21 to 30 of about 13,894 (221)
Review of progress in passive seismic reflection exploration
地球与行星物理论评, 2023 Seismic exploration is a key method for the study of underground structures. Active seismic surveys can acquire high signal-to-noise ratio reflection data; however, the operation of active seismic surveys is complicated, and the exploration cost is high.
Xiaomin Ruan +6 more
doaj +1 more source
Near-surface structure of the Sodankylä area in Finland, obtained by passive seismic interferometry [PDF]
Solid Earth, 2021 Controlled-source seismic exploration surveys are not always possible in nature-protected areas. As an alternative, the application of passive seismic techniques in such areas can be proposed.
N. Afonin +6 more
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Interrogating a Surging Glacier With Seismic Interferometry
Geophysical Research Letters, 2019 Seismic interferometry can be spectacularly sensitive to temporal changes within the Earth. Zhan (2019, https://doi.org/10.1029/2019GL082411) analyzed 12 years of data from seismic stations situated near Bering Glacier, Alaska, that spanned a 2008–2011 ...
Richard C. Aster
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Lab and Field Tests of a Low‐Cost 3‐Component Seismometer for Shallow Passive Seismic Applications
Earth and Space Science, 2023 We performed laboratory tests and field surveys to evaluate the performance of a low‐cost 3‐component seismometer, consisting of three passive electromagnetic spring‐mass sensors, whose 4.5 Hz natural frequency is extended down to 0.5 Hz thanks to hyper ...
D. Arosio +4 more
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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
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
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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
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
Remote SensingSingle-channel seismic (SCS) methods play a crucial role in offshore wind farm assessments, offering rapid and continuous imaging of the subsurface. Conventional SCS methods often fall short in resolution and signal completeness, leading to potential ...
Rui Wang +5 more
doaj +1 more source