Results 41 to 50 of about 220,034 (302)
Application of a new Structural Joint Inversion Approach to Teleseismic and Gravity Data from Mt.Vesuvius, Italy [PDF]
, 2008 A 3-D joint inversion of seismic and gravimetric data is performed to re-investigate the subsurface structure of Mt. Vesuvius (Italy) utilizing an improved joint inversion method. The aim is to derive models of the 3D distribution of velocity and density
Arne Thomas (1689718) +8 more
core +3 more sources
Case studies of 2D cross gradient joint inversion of seismic refraction and DC resistivity data: Potential and limitations [PDF]
E3S Web of ConferencesSeismic refraction tomography (SRT) and electrical resistivity tomography (ERT) 2D profiles are commonly employed in near surface geophysical surveys to gather subsurface information.
Seive Benjamin, Boulay Antonin
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
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Joint inversion of long-period magnetotelluric data and surface-wave dispersion curves for anisotropic structure: Application to data from Central Germany [PDF]
, 2011 Geophysical datasets sensitive to different physical parameters can be used to improve resolution of Earth's internal structure. Herein, we jointly invert long-period magnetotelluric (MT) data and surface-wave dispersion curves.
A. G. Jones +29 more
core +2 more sources
Joint Inversion of Compact Operators
Journal of Inverse and Ill-posed Problems, 2018 Abstract Joint inversion of multiple data types was studied as early as 1975 in [K. Vozoff and D. L. Jupp, Joint inversion of geophysical data, Geophys. J. Internat. 42 1975, 3, 977–991], where the authors used the singular value decomposition to determine the degree of ill-conditioning of joint inverse problems. The authors demonstrated
Jodi L. Mead, James F. Ford
openaire +4 more sources
Joint inversion of borehole-surface direct-current resistivity data
Meitian dizhi yu kantanObjectiveThe conventional inversion of surface direct-current (DC) resistivity data faces challenges such as limited exploration accuracy and depth.
Kaijun XU +4 more
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Frontiers in Earth Science, 2023 As an airborne electromagnetic method induced by natural sources, the Z-axis tipper electromagnetic (ZTEM) system can primarily recover near-surface shallow structures, due to band-limited frequencies (usually 30–720 Hz) of the airborne survey and high ...
Xiaoyue Cao +6 more
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, 2013 This paper presents a new joint inversion approach to shape-based inverse problems. Given two sets of data from distinct physical models, the main objective is to obtain a unified characterization of inclusions within the spatial domain of the physical ...
Abriola, Linda M. +4 more
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Dizhen xuebao, 2018 利用弹性波的初至波和面波，应用交叉梯度算子，联合反演了近地表的二维纵横波速度和衰减参数，并提出了采用一维弹性波正演模拟，应用二维Tikhonov正则化，同时反演出二维速度模型和衰减模型的方法。理论模型测试和实际数据应用结果均表明本文算法极大地提高了计算效率，同时能够反演出可靠的速度模型和衰减模型。
Yue Wang, Jie Zhang
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High-resolution seismic inversion method based on joint data-driven in the time-frequency domain
Artificial Intelligence in GeosciencesSeismic inversion can be divided into time-domain inversion and frequency-domain inversion based on different transform domains. Time-domain inversion has stronger stability and noise resistance compared to frequency-domain inversion.
Yu Liu, Sisi Miao
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