Results 61 to 70 of about 407,593 (165)

Multi-Shot Simultaneous Deghosting for Virtual-Shot Gathers via Integrated Sparse and Nuclear Norm Constraint Inversion

Remote Sensing
Seismic interferometry is a key technology in geophysical exploration, having achieved significant developments in constructing virtual seismic responses, overcoming the limitation of traditional exploration.
Junming Zhang, Deli Wang, Bin Hu, Xiangbo Gong, Yifei Chen, Yang Zhang   +5 more
doaj   +1 more source

Tidal Response of Seismic Wave Velocity at Shallow Crust in Japan

Geophysical Research Letters, 2023
Microcracks in geomaterials cause variations in the elastic moduli under applied strain, thereby creating seismic wave velocity variations. These are crucial for understanding the dynamic processes of the crust, such as fault‐zone damage, healing, and ...
Tomoya Takano, Kiwamu Nishida
doaj   +1 more source

Rapid UAV‐ and Ground‐Based Magnetic Mapping of Subsurface Fractures During a Volcano‐Tectonic Crisis in Grindavík, Iceland

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We applied an integrated UAV‐ and ground‐based magnetometry workflow to map shallow subsurface fractures and cavities in the town of Grindavík during the 2023–2025 volcano‐tectonic crisis. Short‐wavelength linear and semi‐circular magnetic lows delineate open or partially open fractures and localized cavities, including features with no ...
E. J. Piispa, C. R. Gallagher, S. Bernholt, G. M. Einarsson, Ö. Erlendsson, K. Á. Karlsdóttir, M. Á. Sigurgeirsson, R. A. Askew, D. Ben‐Yehoshua, B. V. Óskarsson, S. R. Gunnarson, M. T. Gudmundsson, G. Björnsson   +12 more
wiley   +1 more source

Ambient noise multimode surface wave tomography

Progress in Earth and Planetary Science
Seismic techniques using earthquakes are powerful tools for exploring the Earth’s internal structure. However, the earthquake distribution limits the spatial resolution.
Kiwamu Nishida, Ryota Takagi, Akiko Takeo   +2 more
doaj   +1 more source

Competing Effects of Elastic Heterogeneity and Viscous Flow on Interseismic Coupling at Cascadia

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Interseismic coupling maps are important tools for estimating future earthquake hazard at subduction zones. Often interseismic coupling is estimated from surface velocities using a homogeneous elastic Earth model. However, inversions that incorporate viscoelastic mantle flow or elastic heterogeneity show that each can change the spatial ...
E. M. Sherrill, K. M. Johnson, F. F. Pollitz   +2 more
wiley   +1 more source

Deformation monitoring using scanning synthetic aperture radar interferometry [PDF]

, 2009
textThis dissertation provides the first demonstration of scanning synthetic aperture radar (ScanSAR) advanced interferometry processing for measuring surface deformation.
Gudipati, Krishna Vikas, 1979-
core  

Global Evidence for Off‐Axis Flexural Modification of Abyssal Hill Faults at Mid‐Ocean Ridges

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Young oceanic lithosphere flexes as axial topography decays across mid‐ocean ridge shoulders, yet this deformation has been quantified at only a few segments, leaving its global expression poorly constrained. We analyzed 50 across‐axis bathymetric profiles from 21 regions spanning slow to fast spreading rates, identified 1,201 abyssal‐hill ...
Ran Li, Zhonglan Liu, Shuming Feng, Teng Peng, Yuan Wang   +4 more
wiley   +1 more source

Comparison of fast Fourier transform and convolution in wavelength scanning interferometry [PDF]

, 2011
The assessment of surface finish has become increasingly important in the field of precision engineering. Optical interferometry has been widely used for surface measurement due to the advantages of non-contact and high accuracy interrogation.
Gao, F., Muhamedsalih, Hussam, X. Jiang, F. Gao, Jiang, Xiangqian, Jiang, Xiang, H. Muhamedsalih, Gao, Feng   +7 more
core   +1 more source

On-line surface inspection using cylindrical lens-based spectral domain low-coherence interferometry [PDF]

, 2014
We present a spectral domain low-coherence interferometry (SD-LCI) method that is effective for applications in on-line surface inspection because it can obtain a surface profile in a single shot. It has an advantage over existing spectral interferometry
Jiang, Xiangqian, Gao, Feng, Tang, Dawei
core   +2 more sources

Potential Bias in Inferred Megathrust Slip Rates Induced by the Neglect of Material Heterogeneity

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Accurate knowledge of the pattern of interseismic coupling on megathrusts is critical to preparing for future earthquakes and tsunamis. However, published models for a given fault zone commonly differ widely, making hazard assessment difficult.
Jeng‐Hann Chong, Eric O. Lindsey
wiley   +1 more source