Results 11 to 20 of about 145 (123)

The United States Magnetotelluric Array and the National Impedance Map

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert, Paul A. Bedrosian, Adam Schultz, Gary D. Egbert, Louise Pellerin, Jeffrey J. Love, Andrew Frassetto, Benjamin S. Murphy   +7 more
wiley   +1 more source

Technical advances and research directions of borehole geophysical prospecting for coal mines

Meitian dizhi yu kantan
BackgroundHigh-precision and long-distance exploration of geological conditions is required for coal extraction and disaster prevention in coal mines. However, traditional drilling and geophysical prospecting methods face technical bottlenecks such as ...
Jianyuan CHENG, Yu YAN, Yuteng LI, Pan WANG, Rui ZHAO, Bici JIANG   +5 more
doaj   +1 more source

Determining the Character of Subglacial Sediments in the Ice‐Bedrock Interface Zone of Antarctica Using Horizontal‐to‐Vertical Spectral Ratios (HVSRs) of Seismic Ambient Noise

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Interactions between the Antarctic Ice Sheet and the underlying solid Earth occur within the ice‐bedrock interface zone (IBIZ), containing structures of sediments and rocks that strongly influence ice sheet dynamics. Existing insights into the Antarctic IBIZ come primarily from interpretations of airborne geophysical data and active seismic ...
I. D. Kelly, A. M. Reading, T. Stål, B. Kulessa, A. García‐Jerez, J. Piña‐Flores, E. Paolucci, A. Tanzini, R. J. Turner, J. C. Magyar, A. P. Bassom   +10 more
wiley   +1 more source

Effect of the Outer Pipe on Reducing Direct Coupling of the Thin Borehole Radar Probe in Thick Water-Filled Borehole

Remote Sensing
We propose an outer pipe to reduce a direct wave in a thin single-hole borehole radar probe in a thick water-filled borehole. The outer pipe replaces the medium, such as water inside the borehole, with low-permittivity materials, such as air and plastics.
Satoshi Ebihara, Raiki Masui, Koki Koyama, Yuki Tsujikawa, Yuto Nishida   +4 more
doaj   +1 more source

Stemflows and Preferential Flows: A Historical Review and Challenges for the Future

Hydrological Processes, Volume 40, Issue 5, May 2026.
Possible implementation of stemflow in the MIPS model where all water in the system is represented as particles in pathways of specified velocity. Stemflow (green particles) can be treated as a localised input with probabilities of entering higher velocity pathways than throughfall, depending on the input rates.
Keith Beven, John T. Van Stan
wiley   +1 more source

Construction method of a transparent tunneling geological navigation system based on integrated borehole geophysical exploration

Meitan kexue jishu
Accurate acquisition of advanced geological information and experience-based decision-making remain major challenges for intelligent coal mine excavation. This study proposes a construction method for a transparent excavation geological navigation system
Tao FAN, Zaibin LIU, Jianyuan CHENG, Wei LI, Yue HAO, Zhenhua DAI, Xiaofeng DUAN, Wenming LIU, Guihong LI, Yaoquan GAO   +9 more
doaj   +1 more source

Large Deformation, Pressure‐Driven Mechanistic Modeling of the 2018 Caldera Collapse at Kīlauea Volcano, HI

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Volcanic calderas are large depressions formed by the rapid collapse of overlying rock into a magma chamber during eruptions. We utilize Smoothed Particle Hydrodynamics (SPH), a continuum, meshfree numerical method, to study the 2018 caldera collapse at Kīlauea volcano in Hawaii.
Enrique M. del Castillo, Paul Segall
wiley   +1 more source

Advances in research on borehole geophysical exploration and associated equipment for advance detection of underground water hazards in coal mines

Meitian dizhi yu kantan
BackgroundDeep coal mining is facing increasingly complex hidden disaster-causing factors, including faults, collapse columns, water accumulation in goaves, confined water in coal seam floors, and hydraulically conductive fracture zones. In this context,
Qiang WU, Xianhui WANG, Donghui YANG, Wenhao XIAO, Zhuangjie CUI, Han CHEN, Zhen SHENG, Yifan ZENG   +7 more
doaj   +1 more source

Hydrometeorological and Topographic Controls on Rock Glacier Kinematics: A Case Study From Southeastern Alaska

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Rock glacier kinematics are indicators of alpine climate change, yet the relative influence of thermal and hydrological processes on their motion remains poorly constrained. This uncertainty limits our ability to predict how these permafrost landforms will respond to ongoing climate change.
Qingyu Sui, Zhong Lu, Tyler M. Meng, Jinwoo Kim, Bretwood Higman, Chunli Dai, Emmanuel Junior Budukumah, Sam McColl, Ian Howat, Chad Hults, Vamshi Karanam, Kang Liang   +11 more
wiley   +1 more source

Monitoring Groundwater Pumping Using Time‐Lapse Tomography From Ambient Seismic Noise

Water Resources Research, Volume 62, Issue 4, April 2026.
Abstract Management of water resources will be of critical importance as the effects of climate change accelerate. This implies the need to monitor water resources with high spatial and temporal resolution. One way to meet this need could be passive seismic methods using ambient seismic noise. In this study, we present a novel approach using time‐lapse
Richard Kramer, Clément Estève, Yang Lu, Jeremy M. Gosselin, Birgit Jochum, Götz Bokelmann   +5 more
wiley   +1 more source