Results 41 to 50 of about 215 (176)

Multi‐Scale Geophysical Imaging of a Hydrothermal System in Yellowstone National Park, USA

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Little is known about the local plumbing systems that fuel Yellowstone's famous hot springs, geysers and mud pots. A multi‐method, multi‐scale geophysical investigation was carried out in the Obsidian Pool Thermal Area (OPTA) to: (a) delineate the lateral extent of the hydrothermal area and associated surface features; (b) estimate the ...
Sylvain Pasquet, W. Steven Holbrook, Bradley J. Carr, Neil Terry, Martin A. Briggs, Carol A. Finn, Paul A. Bedrosian, Esben Auken, Jesper Pedersen, Pradip Maurya, Kenneth W. W. Sims   +10 more
wiley   +1 more source

Passive Seismic Surveys for Beach Thickness Evaluation at Different England (UK) Sites

Journal of Marine Science and Engineering, 2022
In an era of environmental change leading to rising sea levels and increased storminess, there is a need to quantify the volume of beach sediment on the coast of Britain in order to assess the vulnerability to erosion using cheap, easy-to-deploy and non ...
David Morgan, David Gunn, Andres Payo, Michael Raines   +3 more
doaj   +1 more source

Site Classification using Multichannel Channel Analysis of Surface Wave (MASW) method on Soft and Hard Ground

Journal of Physics: Conference Series, 2018
Site classification utilizing average shear wave velocity (Vs(30) up to 30 meters depth is a typical parameter. Numerous geophysical methods have been proposed for estimation of shear wave velocity by utilizing assortment of testing configuration, processing method, and inversion algorithm. Multichannel Analysis of Surface Wave (MASW) method is been
M. A. M Ashraf, N. S. Kumar, R. Yusoh, Z. A. M. Hazreek, M. Aziman   +4 more
openaire   +1 more source

Unveiling Cryosphere Dynamics by Distributed Acoustic Sensing and Data‐Driven Hydro‐Thermo Coupled Simulation

Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.
Abstract As global warming continues, the Earth's cryosphere is experiencing severe degradation. This study leverages a novel combination of distributed acoustic sensing (DAS) and artificial intelligence to monitor and decipher cryospheric dynamics. We have developed an advanced time‐lapse surface wave analysis workflow to capture shear wave velocity ...
Haoyuan Sun, Feng Cheng, Jianghai Xia, Jianbo Guan, Zefeng Li, Jonathan B. Ajo‐Franklin   +5 more
wiley   +1 more source

Assess the Effectiveness of Multichannel Analysis of Surface Waves Method in Mapping Ancient Structures in Ultrashallow Aquatic Environments: The Case of Agioi Theodoroi, Greece

Archaeological Prospection, Volume 32, Issue 1, Page 35-46, January/March 2025.
ABSTRACT The present geophysical research aims to evaluate the applicability of multichannel analysis of surface waves (MASW) on mapping ultrashallow underwater ancient masonry remnants. The work presents the analysis from a single seismic line using MASW and seismic refraction tomography (SRT) methods and its corresponding electrical resistivity ...
George Kritikakis, Nikos Papadopoulos, Nikos Andronikidis, Kleanthis Simyrdanis, Theotokis Theodoulou   +4 more
wiley   +1 more source

Estimation of bedrock depth for a part of Garhwal Himalayas using two different geophysical techniques

Geoscience Letters, 2018
It has now been well established that the depth of bedrock is a key parameter in assessing the impact of local site conditions on seismic hazard analysis.
Ritu Raj Nath, Gautam Kumar, M. L. Sharma, S. C. Gupta   +3 more
doaj   +1 more source

Acoustic Signal‐Based Deep Learning Approach and Device for Detecting Interfacial Voids in Steel–Concrete Composite Structures

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The reliable synergy between steel and concrete is an important evaluation criterion for the safety and long‐term use of steel–concrete composite structures (SCCSs). However, it is still a great challenge to realize fast and automated interface void detection for composite structures such as towers.
Wei Tian, Hang Yuan, Xinpeng You, Hehui Zheng, Bazhou Li, Chengming Peng, Doo-Yeol Yoo   +6 more
wiley   +1 more source

The Estimation of Shear Wave Velocity for Shallow Underground Structures in the Central Himalaya Region of Nepal

Geosciences
A subsurface investigation was conducted to assess the suitability of a site for potential tunnel construction, focusing on the determination of shear wave velocities (Vs) in subsurface materials.
Umesh Jung Thapa, Satish Paudel, Umesh Chandra Bhusal, Hari Ghimire, Shyam Sundar Khadka   +4 more
doaj   +1 more source

Application of geophysical prospecting methods ERT and MASW in the landslide of Daofu County, China

Frontiers in Earth Science, 2023
Natural disasters such as debris flow caused by earthquakes seriously threaten the local infrastructure and economy, as well as the lives of people in the area.
Gang Zhang, Gang Zhang, Gang Zhang, Fangzhou Tu, Yushu Tang, Xingchang Chen, Xingchang Chen, Xingchang Chen, Kuilin Xie, Sen Dai   +9 more
doaj   +1 more source

Maximizing the energy of surface wave and diminishing the effect of lateral inhomogenousness in the multichannel analysis of the surface wave (MASW)

Science and Technology Development Journal - Natural Sciences, 2019
Multichannel analysis of surface wave (MASW) is one of the novel seismic methods in geophysic field in Vietnam. MASW is able to survey the stiffness of the soil environment under the ground via the shear-wave velocity VS by analyzing the spectral image of surface wave.
Khuong Manh Vo, Trinh Phuc Tran, Van Thanh Nguyen, Luu Van Do, Ngan Nhat Kim Nguyen   +4 more
openaire   +2 more sources