Yaoguo Li
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View article: First field trial of ergodic sampling for airborne magnetic survey
First field trial of ergodic sampling for airborne magnetic survey Open
We present the results from the first field trial applying ergodic sampling for efficient airborne magnetic data acquisition. Using two independently flown airborne surveys over the same area, we demonstrated that an ergodic survey using 5…
View article: Where could geologic hydrogen generation happen in UAE? Mapping serpentinization in the ophiolite blocks using MT phase tensors
Where could geologic hydrogen generation happen in UAE? Mapping serpentinization in the ophiolite blocks using MT phase tensors Open
Geologic hydrogen has emerged as a primary energy source, drawing growing interest from the scientific community and the energy sector. One of the primary geochemical mechanisms for natural hydrogen generation is serpentinization, which is…
View article: A geophysical investigation of the fairy circles in Nebraska for geologic hydrogen exploration
A geophysical investigation of the fairy circles in Nebraska for geologic hydrogen exploration Open
Fairy circles are subcircular surface depression features that are widely distributed all over the world and they are commonly considered as a potential indicator to the presence of subsurface geologic hydrogen. Understanding the relations…
View article: Research on Stock Selection Model and Portfolio Based on Machine Learning
Research on Stock Selection Model and Portfolio Based on Machine Learning Open
Stock and portfolio is an important part of the financial industry, which is affected by many factors and changes at the same time there are certain rules. The rapid development of big data and artificial intelligence technology represente…
View article: Connect Geophysical Data Interpretation and Geology Through Inversion for Anisotropic Magnetic Susceptibility
Connect Geophysical Data Interpretation and Geology Through Inversion for Anisotropic Magnetic Susceptibility Open
Anisotropic magnetic susceptibility, as an intrinsic property that records the strain history a rock formation experienced, has been widely used in structural geological studies based on direct specimen measurements. By comparing measureme…
View article: Geologic hydrogen exploration by imaging key hydrogen system components using multiple geophysical methods
Geologic hydrogen exploration by imaging key hydrogen system components using multiple geophysical methods Open
Geologic hydrogen has emerged as a potentially transformational energy source in the quest for low-cost energy supplies and long-term energy security. If realized, this new form of primary energy source could circumvent the insurmountable …
View article: Determining structural boundaries using blocky magnetotelluric data inversion
Determining structural boundaries using blocky magnetotelluric data inversion Open
The magnetotelluric method has large depths of investigation and can provide important structural information in many exploration problems. The one‐dimensional magnetotelluric inversion also has been applied to extract boundary information…
View article: Electromagnetic inversion for a baseline conductivity model at the Kemper CarbonSAFE site
Electromagnetic inversion for a baseline conductivity model at the Kemper CarbonSAFE site Open
Geophysics is one component of a successful monitoring strategy for carbon storage sites. Seismic surveys are a common element of these strategies, with repeat surveys occurring about every 5 years. However, seismic is expensive, the sensi…
View article: 3D modeling of deep borehole electromagnetic measurements with energized casing source for fracture mapping at the Utah Frontier Observatory for Research in Geothermal Energy
3D modeling of deep borehole electromagnetic measurements with energized casing source for fracture mapping at the Utah Frontier Observatory for Research in Geothermal Energy Open
We present a 3D numerical modelling analysis evaluating the deployment of a borehole electromagnetic measurement tool to detect and image a stimulated zone at the Utah Frontier Observatory for Research in Geothermal Energy geothermal site.…
View article: Constrained simultaneous recovery of the depth to basement and lateral susceptibility variation
Constrained simultaneous recovery of the depth to basement and lateral susceptibility variation Open
The basin environment is a widely studied subject in both geology and geophysics for its economic significance in energy and mineral explorations. However, the estimation of the basement depth is often a challenging task given the complexi…
View article: The role of geophysics in geologic hydrogen resources
The role of geophysics in geologic hydrogen resources Open
Transition to cleaner energy sources is crucial for reducing carbon emissions to zero. Among these new clean energy types, there is a growing awareness of the potential for naturally occurring geologic hydrogen (H2) as a primary energy res…
View article: Basement Mapping Using Nonlinear Gravity Inversion with Borehole and Seismic Constraints
Basement Mapping Using Nonlinear Gravity Inversion with Borehole and Seismic Constraints Open
We present an integrated method for mapping the basement structures of sedimentary basins by combining surface gravity data, seismic imaging, and borehole logging information. The core of the method is a nonlinear inversion algorithm for c…
View article: Stochastic inversion of geophysical data by a conditional variational autoencoder
Stochastic inversion of geophysical data by a conditional variational autoencoder Open
Recovering geologically realistic physical property models by geophysical inversion is a long-standing challenge. Generative neural networks offer a promising path to meet this challenge because they can produce spatially complex models th…
View article: Ergodic sampling: Acquisition design to maximize information from limited samples
Ergodic sampling: Acquisition design to maximize information from limited samples Open
Data acquisition using equal spacing has been a standard practice in geophysics. The dense uniform sampling derived from Nyquist–Shannon sampling includes redundant samples, and it is sufficient but not necessary to adequately record targe…
View article: Feasibility of FDEM cross-dipole and TDEM loop sources for monitoring CO2 at the Kemper CarbonSAFE site
Feasibility of FDEM cross-dipole and TDEM loop sources for monitoring CO2 at the Kemper CarbonSAFE site Open
Electromagnetics has been shown to be a viable tool to monitor CO2 plumes embedded in saline reservoirs. However, the majority of studies focus on measuring the electric field, which requires cumbersome equipment in the field and it is dif…
View article: The Kimberlina synthetic multiphysics dataset for <scp>CO<sub>2</sub></scp> monitoring investigations
The Kimberlina synthetic multiphysics dataset for <span>CO<sub>2</sub></span> monitoring investigations Open
We present a synthetic multi‐scale, multi‐physics dataset constructed from the Kimberlina 1.2 CO 2 reservoir model based on a potential CO 2 storage site in the Southern San Joaquin Basin of California. Among 300 models, one selected reser…
View article: Interpretation of transient electromagnetic data using zero-level curves
Interpretation of transient electromagnetic data using zero-level curves Open
Geophysical data has long been used to gain insight into the geologic structure and composition of the subsurface. The geometrical characteristics of geophysical data, such as the locations of the minimum, maximum, and zero-crossings, give…
View article: Hydrothermal Alteration Zones’ Magnetic Susceptibility Footprints and 3D Model of Iron Oxide-Copper-Gold (IOCG) Mineralization, Carajás Mineral Province, Brazil
Hydrothermal Alteration Zones’ Magnetic Susceptibility Footprints and 3D Model of Iron Oxide-Copper-Gold (IOCG) Mineralization, Carajás Mineral Province, Brazil Open
Brownfield areas are important targets of exploration; however, the extensive drilling present in these areas has not fully exploited their prospective potential. The appropriate use of drill hole cores in these areas can play an important…
View article: Molecular Characterization and Dietary Regulation of Glutaminase 1 (gls1) in Triploid Crucian Carp (Carassius auratus)
Molecular Characterization and Dietary Regulation of Glutaminase 1 (gls1) in Triploid Crucian Carp (Carassius auratus) Open
Kidney-type glutaminase, encoded by the gls1 gene, plays a critical role in glutamate production and improvement of meat flavor. In this study, a gls1 gene encoding 595 amino acids was cloned from triploid crucian carp (Carassius auratus) …
View article: NETL Plastic Pipes Project - June 2022 Progress Report
NETL Plastic Pipes Project - June 2022 Progress Report Open
Plastic or composite pipelines have been the bane of the utility locating industry because conduits are neither conductive nor magnetic, which are the properties traditionally used to locate buried utilities. Ground penetrating radar (GPR)…
View article: Magnetic on-time transient electromagnetic method (MoTEM) for imaging magnetic susceptibility
Magnetic on-time transient electromagnetic method (MoTEM) for imaging magnetic susceptibility Open
SUMMARY We present the magnetic on-time transient electromagnetic (MoTEM) method for obtaining information about subsurface magnetic susceptibility from transient electromagnetic (TEM) measurements. The method uses the primary field produc…
View article: Deep learning multiphysics network for imaging CO<sub>2</sub> saturation and estimating uncertainty in geological carbon storage
Deep learning multiphysics network for imaging CO<sub>2</sub> saturation and estimating uncertainty in geological carbon storage Open
Multiphysics inversion exploits different types of geophysical data that often complement each other and aims to improve overall imaging resolution and reduce uncertainties in geophysical interpretation. Despite the advantages, traditional…
View article: Sequence, Expression, and Anti-GCRV Function of the Ferritin from the Grass Carp, Ctenopharyngodon idellus
Sequence, Expression, and Anti-GCRV Function of the Ferritin from the Grass Carp, Ctenopharyngodon idellus Open
Ferritin possesses an immune function to defend against pathogen infection. To elucidate the immunity-protecting roles of ferritin from Ctenopharyngodon idellus (Ciferritin) against virus infection, the cDNA and promoter sequences of Cifer…
View article: Integrated geophysical investigation for understanding agriculturally induced landslides in southern Peru
Integrated geophysical investigation for understanding agriculturally induced landslides in southern Peru Open
We conducted near-surface geophysical surveys in and around the Majes I agricultural development (60 km west of Arequipa, Peru), where the nexus of geology and agriculture has increased landslide activity along the Majes–Siguas River Valle…
View article: Kimberlina 1.2 CCUS Geophysical Models and Synthetic Data Sets
Kimberlina 1.2 CCUS Geophysical Models and Synthetic Data Sets Open
This synthetic multi-scale and multi-physics data set was produced in collaboration with teams at the Lawrence Berkeley National Laboratory, National Energy Technology Laboratory, Los Alamos National Laboratory, and Colorado School of Mine…
View article: The feasibility of MT tipper data to monitor CO<sub>2</sub> storage sites
The feasibility of MT tipper data to monitor CO<sub>2</sub> storage sites Open
Monitoring carbon storage sites using geophysical techniques is a critical component to the success and safety of storage programs. Currently, the primary methods of monitoring such sites are seismic and, to a much lesser extent, electroma…
View article: Geology differentiation by applying unsupervised machine learning to multiple independent geophysical inversions
Geology differentiation by applying unsupervised machine learning to multiple independent geophysical inversions Open
SUMMARY Effective quantitative methods for integrating multiple inverted physical property models are necessary to increase the value of information and advance interpretation further to produce interpretable geology models through geology…