Results 11 to 20 of about 32,021 (259)
Seismological reference earth model in South China (SREM-SC): Upper mantle
Frontiers in Earth Science, 2023 This work is the mantle component of constructing the Seismological Reference Earth Model in South China (SREM-SC). Although there has been a wide range of research for imaging the upper mantle structures beneath South China, most of them focus on the ...
Qingya Tang +5 more
doaj +1 more source
Monitoring of repaired water leaks using surface wave tomography
Developments in the Built Environment, 2023 Cracks with water leakage have been found in an underground concrete structure, and they have been repaired by injecting waterstop agents and applying patch repair materials after V-shaped removal of existing materials.
Norihiko Ogura +3 more
doaj +1 more source
Resolving Continental Magma Reservoirs With 3D Surface Wave Tomography
Geochemistry, Geophysics, Geosystems, 2022 Surface wave tomography is widely used to improve our understanding of continental magma reservoirs that may be capable of fueling explosive volcanic eruptions.
Ross Maguire +5 more
doaj +1 more source
Numerical and Experimental Location Detection of Through Defect in Homogenized Plates using Tomography of Surface Wave Method [PDF]
فصلنامه علوم و فناوری فضایی, 2019 Using surface guided wave is one of the most reliable methods of structural health monitoring. Mostly the bulk wave is preferred for identification of internal defects, which is inefficient in localizing the surface cracks. In this paper the procedure of
Saeed Zohoori, saeed shakhesi
doaj +1 more source
Surface wave tomography of the Gulf of California [PDF]
Geophysical Research Letters, 2007 We measured interstation fundamental mode Rayleigh wave phase velocities using data from the NARS‐Baja seismic network located around the Gulf of California. A region‐average, shear velocity model and a set of azimuthally anisotropic phase velocity maps are obtained from these data.
Zhang, X. +3 more
openaire +2 more sources
Comparison of straight-ray and curved-ray surface wave tomography approaches in near-surface studies [PDF]
Solid Earth, 2022 Surface waves are widely used to model shear-wave velocity of the subsurface. Surface wave tomography (SWT) has recently gained popularity for near-surface studies.
M. Karimpour, E. Slob, L. V. Socco
doaj +1 more source
A reappraisal of regional surface wave tomography [PDF]
Geophysical Journal International, 2002 SUMMARY A three-stage inversion scheme for surface wave tomography working with multimode phase dispersion as a function of frequency provides a means of combining a wide range of data in a common framework. The phase average approximation is applied directly to phase slowness and there is no need to invoke perturbation arguments for the interpretation
Kennett, B. L. N., Yoshizawa, K.
openaire +2 more sources
Geophysical Research Letters, 2022 The North China Craton (NCC) is renowned for cratonic reactivation and dramatic destruction. Detailed lithospheric structure is crucial for understanding the geological evolution and seismogenesis of the NCC.
J. K. Feng, H. J. Yao, L. Chen, C. L. Li
doaj +1 more source
Two-Dimensional Full-Waveform Joint Inversion of Surface Waves Using Phases and Z/H Ratios
Applied Sciences, 2021 Surface-wave dispersion and the Z/H ratio are important parameters used to resolve the Earth’s structure, especially for S-wave velocity. Several previous studies have explored using joint inversion of these two datasets.
Chao Zhang, Ting Lei, Yi Wang
doaj +1 more source
Geophysical Research Letters, 2022 We present a novel eikonal tomography approach using physics‐informed neural networks (PINNs) for Rayleigh wave phase velocities based on the eikonal equation. The PINN eikonal tomography (pinnET) neural network utilizes deep neural networks as universal
Yunpeng Chen +5 more
doaj +1 more source