Results 61 to 70 of about 2,752 (220)

Evaluating Seismic Ambient Noise Techniques for Imaging Lava Tubes on the Moon

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting and characterizing lava tubes is a key objective of upcoming lunar missions. While evidence for their presence exists, their precise dimensions and depths remain uncertain. This study evaluates the potential of seismic ambient noise methods, such as seismic interferometry, H/V spectral ratios, distributed acoustic sensing (DAS), and ...
Sabrina Keil, Rok Sesko, Martin Schimmel, Heiner Igel, Philipp Reiss   +4 more
wiley   +1 more source

Shallow Shear‐Wave Reflection Surveys in the Wellington Central Business District

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Seismic reflection profiling using shear waves provides constraints on the thickness of sediments beneath the Wellington Central Business District. Standard seismic methods were modified for urban environments where limited grassed areas are available and levels of cultural noise are high.
Sam. B. Thorpe‐Loversuch, Tim. A. Stern, Wanda. R. Stratford   +2 more
wiley   +1 more source

Influences of variations in the sledgehammer trajectory and collinearity of the geophone array in an MASW survey on the shear-wave velocity profile

International Journal of Geo-Engineering, 2020
In professional activities aimed at seismic site classification, geophysical methods based on measurements of surface waves are often used to measure the shear-wave velocity (Vs), with the MASW survey being one of the most common techniques employed for ...
Edgar Giovanny Diaz-Segura
doaj   +1 more source

Multi‐scale geophysical mapping of the brine and bedrock surfaces along the Dolores River, Paradox Valley, Colorado, December 2023

Near Surface Geophysics, Volume 24, Issue 1, Page 36-49, February 2026.
Abstract Total dissolved solids derived from salt dome–sourced brine in the underlying alluvial aquifer substantially increase with distance in the reach of the Dolores River that passes through Paradox Valley in southwestern Colorado. The area has been the site of salinity control operations since the 1990s to reduce salt loading to the downstream ...
Neil Terry, Alisa Mast, Andrea Creighton, Joel Homan, Connor Newman, Suzanne Paschke   +5 more
wiley   +1 more source

MASW Survey to Map Soil Layers and Rock Profiles in a Construction Site

, 2020
Mapping and identification of soil layers and rock profiles is an essential task in any geotechnical engineering project. Conventionally, these are accomplished by conducting standard penetration test (SPT), which are time consuming, expensive and ...
Parhi, P. S., Umashankar, B.
core   +1 more source

Geophysical Methods for Geotechnical Parameters′ Estimation in Shallow Subsurface Investigations: A Review

International Journal of Geophysics, Volume 2026, Issue 1, 2026.
Geotechnical investigations have traditionally relied on invasive methods, such as boreholes and laboratory tests. However, these techniques can be time‐consuming, expensive and spatially limited, often resulting in discontinuous subsurface characterisation that fails to capture the full extent of soil heterogeneity.
Honore Ishimwe, Roberto Francese, Oziel Souza De Araujo, Roberto Valentino, Pramita Mishra   +4 more
wiley   +1 more source

Modelling the Importance of Ground and Strong‐Motion Variables on the Damage Status in the 2023 Kahramanmaraş Earthquakes Using Supervised Machine Learning

Geoscience Data Journal, Volume 12, Issue 4, October 2025.
KNN achieved the highest performance (0.989) using the full dataset and 0.988 with ground‐based parameters. EBd and f0 were key contributors to damage, while PGA dominated strong‐motion models. Specificity consistently outperformed sensitivity in earthquake‐parameter models.
Mustafa Senkaya, Serhat E. Akhanlı, Ali Silahtar, Hasan Karaaslan   +3 more
wiley   +1 more source

Shear wave velocity profiling of Riyadh City, Saudi Arabia, utilizing the multi-channel analysis of surface waves method

Open Geosciences
Geotechnical site characterization is very important for construction purposes. This study has been conducted in Diriyah area northwest of Riyadh City, Saudi Arabia, using the Multichannel Analysis of Surface Waves (MASW) method for site characterization
Abdelrahman Kamal, Hazaea Saddam A., Almadani Sattam A.   +2 more
doaj   +1 more source

Evaluating Seismic Ambient Noise Techniques for Detecting Ice‐Bearing Rocks on the Moon

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract One of the primary objectives of upcoming lunar missions is to locate ice‐bearing rocks at the South Pole. While evidence for their presence exists, the exact distribution and quantity remain uncertain. In this study, we evaluate the potential of seismic ambient noise techniques—including seismic interferometry, H/V spectral ratios ...
S. Keil, M. Schimmel, H. Igel
wiley   +1 more source

Multichannel surface wave analysis in the context of shallow geophysical investigations

Academia Engineering
The application of multichannel surface wave analysis (MASW) has proven to be an effective method for non-invasive investigation of shallow geological structures, especially under complex conditions with heterogeneous layers and the presence ...
Ekrem Bektašević, Stjepan Strelec, Noris Sakić, Kemal Gutić   +3 more
doaj   +1 more source