Emission of Rn and CO2 From Soil at Fault Zones Caused by Seismic Waves
Earth and Space Science, 2023 In the search for precursors to earthquakes, correlation has been found between geochemical characteristics of soil gases and seismic activity. In this paper we present evidence that seismic waves can trigger emission of soil radon (Rn) and carbon ...
Lei Liu +8 more
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Effects of Earth–Rock Dam Heterogeneity on Seismic Wavefield Characteristics
Energies, 2023 Earth–rock dams are typical soil–rock mixtures with high heterogeneity. Mastering the effect of dam heterogeneity on seismic wavefields is the premise of accurately detecting hidden risks in dams.
Hao Xu +5 more
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Broadband inverted T-shaped seismic metamaterial
Materials & Design, 2021 Seismic metamaterials (SMs) are expected to assist or replace traditional isolation systems owing to their strong attenuation of seismic waves. In this work, a one-dimensional inverted T-shaped SM (1D ITSM) composed of arrays of inverted T-shaped ...
Yi Zeng +8 more
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Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]
, 2012 Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
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A near-surface seismic scattered wave separation method
Petroleum Exploration and Development, 2014 Considering that near-surface scattered waves could not be suppressed by conventional denoise method, this paper analyzes the characteristics of scattered waves and achieves the near-surface scattered wave separation by the seismic interferometry theory.
Jixiang XU, B F McLean, Xuejuan SONG
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Seismic response analysis of slope sites exposed to obliquely incident P waves
Frontiers in Earth Science, 2023 This study proposes a seismic input method for layered slope sites exposed to obliquely-incident seismic waves which transforms the waves into equivalent nodal forces that act on the truncated boundary of a finite element model.
Hongyun Jiao +5 more
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Seismic waves increase permeability [PDF]
Nature, 2006 Earthquakes have been observed to affect hydrological systems in a variety of ways--water well levels can change dramatically, streams can become fuller and spring discharges can increase at the time of earthquakes. Distant earthquakes may even increase the permeability in faults. Most of these hydrological observations can be explained by some form of
Elkhoury, Jean E. +2 more
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Interferometric surface-wave isolation and removal [PDF]
, 2007 The removal of surface waves (ground roll) from land seismic data is critical in seismic processing because these waves tend to mask informative body-wave arrivals.
Curtis, Andrew +3 more
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Determination of the arrival time of seismic signals based on the analysis of their phase characteristics [PDF]
Геосистемы переходных зонThe article discusses methodological issues of applying phase characteristics in determining the arrival time of seismic waves. The accuracy of earthquake location depends on the precision with which the arrival times of longitudinal, transverse, and ...
Aleksandrov, Pavel N., Stasenko, Liya V.
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Field Tests for Generating Source System and Picking the Seismic Shear Waves to Meet the Engineering Purposes Requirements. [PDF]
Kirkuk Journal of Science, 2019 Many seismic field tests were carried for the designed and modified seismic apparatuses using to generate seismic shear waves. These apparatus includes: "wooden plank" horizontal traction shear wave source, and a modified geophone for picking the SH-Wave
Muhana Ahmed
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