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Seismic imaging is the numerical process of creating a volumetric representation of the subsurface geological structures from elastic waves recorded at the surface of the Earth. As such, it is widely utilized in the energy and construction…

地球物理 · 物理学 2024-11-05 Juan Romero , Wolfgang Heidrich , Nick Luiken , Matteo Ravasi

Understanding Earth's subsurface structures has been and continues to be an essential component of various applications such as environmental monitoring, carbon sequestration, and oil and gas exploration. By viewing the seismic volumes that…

计算机视觉与模式识别 · 计算机科学 2018-12-26 G. AlRegib , M. Deriche , Z. Long , H. Di , Z. Wang , Y. Alaudah , M. Shafiq , M. Alfarraj

Volcanic eruptions necessitate precise monitoring of magma pressure and inflation for improved forecasting. Understanding deep magma storage is crucial for hazard assessment, yet imaging these systems is challenging due to complex…

Context. When leaving the main sequence (MS) for the red-giant branch (RGB), subgiant stars undergo fast structural changes. Consequently, their observed oscillation spectra mirror these changes, constituting key tracers of stellar…

太阳与恒星天体物理 · 物理学 2025-02-28 M. Farnir , M. -A. Dupret , G. Buldgen

Enhancing the frequency bandwidth of the seismic data is always the pursuance at the geophysical community. High resolution of seismic data provides the key resource to extract detailed stratigraphic knowledge. Here, a novel approach, based…

图像与视频处理 · 电气工程与系统科学 2019-09-16 Yanyan Zhang , Ping Lu , Hua Yu , Stan Morris

Submarine eruptions, accounting for over 80% of Earth's volcanic activity, primarily occur along mid-ocean ridges, where shallow magmatic systems are accessible to high-resolution imaging. Yet, their remoteness often leaves them undetected.…

地球物理 · 物理学 2026-05-27 Baptiste Hériard-Dubreuil , Milena Marjanović , Arnaud Burtin , Alexandre Aubry

4D seismic inversion is the leading method to quantitatively monitor fluid flow dynamics in the subsurface, with applications ranging from enhanced oil recovery to subsurface CO2 storage. The process of inverting seismic data for reservoir…

地球物理 · 物理学 2023-10-25 Juan Romero , Nick Luiken , Matteo Ravasi

Carbon capture and storage (CCS) plays a crucial role in mitigating greenhouse gas emissions, particularly from industrial outputs. Using seismic monitoring can aid in an accurate and robust monitoring system to ensure the effectiveness of…

地球物理 · 物理学 2025-04-01 Xinquan Huang , Fu Wang , Tariq Alkhalifah

Inverse analysis has been utilized to understand unknown underground geological properties by matching the observational data with simulators. To overcome the underconstrained nature of inverse problems and achieve good performance, an…

计算物理 · 物理学 2022-08-10 Hao Wu , Sarah Greer , Daniel O'Malley

Effective structural assessment of urban infrastructure is essential for sustainable land use and resilience to climate change and natural hazards. Seismic wave methods are widely applied in these areas for subsurface characterization and…

In this article, the framework and architecture of Subsurface Camera (SAMERA) is envisioned and described for the first time. A SAMERA is a geophysical sensor network that senses and processes geophysical sensor signals, and computes a 3D…

信号处理 · 电气工程与系统科学 2018-10-30 WenZhan Song , Fangyu Li , Maria Valero , Liang Zhao

A key step in any resonant anomaly detection search is accurate modeling of the background distribution in each signal region. Data-driven methods like CATHODE accomplish this by training separate generative models on the complement of each…

高能物理 - 唯象学 · 物理学 2025-04-08 Ranit Das , David Shih

One of the risks of large-scale geologic carbon sequestration is the potential migration of fluids out of the storage formations. Accurate and fast detection of this fluids migration is not only important but also challenging, due to the…

信号处理 · 电气工程与系统科学 2018-02-08 Yue Wu , Youzuo Lin , Zheng Zhou , Andrew Delorey

Seismic inversion is crucial in hydrocarbon exploration, particularly for detecting hydrocarbons in thin layers. However, the detection of sparse thin layers within seismic datasets presents a significant challenge due to the ill-posed…

图像与视频处理 · 电气工程与系统科学 2024-01-10 Supriyo Chakraborty , Aurobinda Routray , Sanjay Bhargav Dharavath , Tanmoy Dam

We propose GAN-based image enhancement models for frequency enhancement of 2D and 3D seismic images. Seismic imagery is used to understand and characterize the Earth's subsurface for energy exploration. Because these images often suffer…

We propose a deep learning algorithm for seismic interface and pocket detection with neural networks trained by synthetic high-frequency displacement data efficiently generated by the frozen Gaussian approximation (FGA). In seismic imaging…

地球物理 · 物理学 2019-11-06 James C. Hateley , Jay Roberts , Kyle Mylonakis , Xu Yang

We present simulated observations of gas kinematics in galaxies formed in 10 pc resolution cosmological simulations with the hydrodynamical + N-body code RAMSES, using the new RAMSES2HSIM pipeline with the simulated observing pipeline…

The circumgalactic medium (CGM) of typical galaxies is crucial to our understanding of the cycling of gas into, through and out of galaxies. One way to probe the CGM is to study gas around galaxies detected via the absorption lines they…

宇宙学与河外天体物理 · 物理学 2015-06-17 Celine Peroux , Nicolas Bouche , Varsha P. Kulkarni , Donald G. York

In this work, we present a new deep-learning model for microseismicity monitoring that utilizes continuous spatiotemporal relationships between seismic station recordings, forming an end-to-end pipeline for seismic catalog creation. It…

地球物理 · 物理学 2025-07-16 Matteo Bagagli , Francesco Grigoli , Davide Bacciu

The use of seismic waves to explore the subsurface underlying the ground is a widely used method in the oil industry, since different kinds of the rocks and mediums have different reflection rate of the seismic waves, so the amplitude of…

地球物理 · 物理学 2024-07-23 Yuyang Wang
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