Results 81 to 90 of about 2,936 (205)

Small Seismic Sources to Improve Survey Efficiency at Reduced Environmental Impact: Case Study From the Brazilian Pre‐Salt

Geophysical Prospecting, Volume 73, Issue 9, November 2025.
ABSTRACT In Brazil, concerns about marine life have resulted in strong restrictions on seismic operations, with a minimum distance of 60 km between source vessels and an exclusion zone of 1000 m for marine mammals. These restrictions impact survey efficiency, duration, logistics and cost. Optimized and physically smaller seismic sources may reduce cost
Felipe Capuzzo, Marco Cetale, Jorge Lopez, Felipe Costa, Samantha Grandi   +4 more
wiley   +1 more source

Leveraging Deep Operator Networks (DeepONet) for Acoustic Full Waveform Inversion (FWI)

Full Waveform Inversion (FWI) is an important geophysical technique considered in subsurface property prediction. It solves the inverse problem of predicting high-resolution Earth interior models from seismic data. Traditional FWI methods are computationally demanding.
Nath, Kamaljyoti, Shukla, Khemraj, Tsai, Victor C., Waheed, Umair bin, Huber, Christian, Alpak, Omer, Chen, Chuen-Song, Lu, Ligang, St-Cyr, Amik   +8 more
openaire   +2 more sources

Fiber‐Optic Seismic Full Waveform Monitoring of Groundwater Dynamics

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Understanding groundwater dynamics is critical for sustainable water management, particularly as climate extremes become more intense and frequent. However, the resolution of existing subsurface observational tools remains inadequate for detailed aquifer monitoring and imaging.
Haipeng Li, Jingxiao Liu, Shujuan Mao, Siyuan Yuan, Robert G. Clapp, Biondo L. Biondi   +5 more
wiley   +1 more source

Resolving high frequency anomalies of gas cloud using full waveform inversion

Annals of Geophysics, 2016
High resolution models with structurally improved results significant to the physical properties of rocks in geologically complex areas require advance modeling methodologies.
Srichand Prajapati, Deva Ghosh
doaj   +1 more source

Structure of the Multiphase Chalcolithic Tell Chiselet–Grădiștea Fundeanca (Romania) From SH‐Wave Full‐Waveform Inversion, Borehole Geophysics and Coring

Archaeological Prospection, Volume 32, Issue 4, Page 899-926, October/December 2025.
ABSTRACT The emergence and development of settlement mounds, also called tells, is of major interest for the analysis of socio‐economic transformations occurring in the lower Danube plain during the East European Chalcolithic period. In this context, the multiphase chronology and structural layout of tells are highly relevant indicators, but small ...
Manuel Zolchow, Daniel Köhn, Natalie Pickartz, Martin Thorwart, Adrian Serbanescu, Ercan Erkul, Dennis Wilken, Stefan Dreibrodt, Robert Hofmann, Johannes Müller, Catalin Lazar, Wolfgang Rabbel   +11 more
wiley   +1 more source

OPTIMAL CODING OF BLENDED SEISMIC SOURCES FOR 2D FULL WAVEFORM INVERSION IN TIME

CT&F Ciencia, Tecnología & Futuro
Full Waveform Inversion (FWI) schemes are gradually becoming more common in the oil and gas industry, as a new tool for studying complex geological zones, based on their reliability for estimating velocity models.
Flórez, Katherine-A., Abreo, Sergio-Alberto, Ramírez, Ana-B.   +2 more
doaj   +1 more source

Seismic Imaging of the Transition From Normal to Flat Subduction in Southern Peru by Full Waveform Inversion of Teleseismic Waves

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The high topography of the central Andes (15–28°S) is supported by thick crustal roots. The recent uplift of the Altiplano is often explained by crustal shortening and subsequent delamination of the lower crust, though its deep structure and plateau formation processes remain debated.
Li‐Yu Kan, Vadim Monteiller, Anne Socquet, Hernando Tavera, Sébastien Chevrot   +4 more
wiley   +1 more source

Can Traveltime Tomography Benefit From Wave Amplitudes?

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Regularization of seismic inversions has a strong imprint on tomographic images. We analyze recorded and spectral‐element S, Sdiff, and SS waveforms to evaluate the benefit of body‐wave amplitudes in global tomography. L‐curve analysis for S40RTS models with recorded and synthetic waveforms show that SS‐S traveltimes and SS/S amplitude ratios ...
Ayon Ghosh, Ebru Bozdağ, Jeroen Ritsema
wiley   +1 more source

A brief exploration of open-source gradient-based numerical optimization Python libraries for full-waveform inversion

Seismica
Geoscientists favor Python for its user-friendly interface and scientific packages that support application implementation. Python's capabilities make it particularly useful for seismic full waveform inversion (FWI), which can see its implementation ...
Oscar Mojica
doaj   +1 more source

Applying Gauss-Newton and Exact Newton method to Full Waveform Inversion [PDF]

, 2012
International audienceFull Waveform Inversion (FWI) applications classically rely on efficient first-order optimization schemes, as the steepest descent or the nonlinear conjugate gradient optimization.
Brossier, Romain, Métivier, Ludovic, Operto, Stéphane, Virieux, Jean   +3 more
core   +1 more source