Results 31 to 40 of about 63,975 (205)

Estimation of glacier thicknesses and basal properties using the horizontal-to-vertical component spectral ratio (HVSR) technique from passive seismic data

Journal of Glaciology, 2017
Microtremor measurements and the horizontal-to-vertical spectral ratio (HVSR) technique, generally used for site effect studies as well as to determine the thickness of soft sedimentary layers, can effectively be ...
STEFANO PICOTTI, ROBERTO FRANCESE, MASSIMO GIORGI, FRANCO PETTENATI, JOSÉ M. CARCIONE   +4 more
doaj   +1 more source

CAN-HK : An a priori crustal model for the Canadian Shield [PDF]

, 2015
ACKNOWLEDGMENTS The United Kingdom component of the Hudson Bay Lithospheric Experiment (HuBLE) was supported by the Natural Environment Research Council (NERC) Grant Number NE/F007337/1, with financial and logistical support from the Geological Survey of
Bastow, I.D., Helffrich, G. R., Kendall, J-M, Snyder, D. B., Thompson, D. A., Wookey, J   +5 more
core   +3 more sources

Regional mapping of the crustal structure in southern California from receiver functions [PDF]

, 2007
Lateral variations of the crustal structure in southern California are determined from receiver function (RF) studies using data from the Southern California Seismic Network broadband stations and Los Angeles Regional Seismic Experiment surveys.
Clayton, R. W., Yan, Z.
core   +1 more source

Separation of Body and Surface Wave Background Noise and Passive Seismic Interferometry Based on Synchrosqueezed Continuous Wavelet Transform

Applied Sciences
Passive seismic interferometry is a technique that reconstructs virtual seismic records using ambient noise, such as random noise or microseisms. The ambient noise in passive seismic data contains rich information, with surface waves being useful for the
Xiaolong Li, Fengjiao Zhang, Zhuo Xu, Xiangbo Gong   +3 more
doaj   +1 more source

Monitoring Injected CO₂ Using Earthquake Waves Measured by Downhole Fibre-Optic Sensors: CO2CRC Otway Stage 3 Case Study

Sensors, 2022
Monitoring changes of formation properties along the well bore associated with the presence of carbon dioxide can be important for both tracking the plume inside of the primary containment and detecting leakage into the zone located above the reservoir ...
Pavel Shashkin, Boris Gurevich, Sinem Yavuz, Stanislav Glubokovskikh, Roman Pevzner   +4 more
doaj   +1 more source

Seismic passive earth pressures of narrow cohesive backfill against gravity walls using the stress characteristics method

Soils and Foundations
A solution method for the determination of seismic passive earth pressures in narrow cohesive backfill behind gravity walls has been developed using the stress characteristics method.
Zhan-liang Wang, Wu-zhen Kang, Fu-quan Chen, Cheng Lin   +3 more
doaj   +1 more source

Fleet’s Geode: A Breakthrough Sensor for Real-Time Ambient Seismic Noise Tomography over DtS-IoT

Sensors, 2022
As most of the outcropping and shallow mineral deposits have been found, new technology is imperative to finding the hidden critical mineral deposits required to transition to renewable energy.
Gerrit Olivier, Braeden Borg, Lawrence Trevor, Boris Combeau, Philippe Dales, Jonathan Gordon, Hemant Chaurasia, Matthew Pearson   +7 more
doaj   +1 more source

A look at the blind Kumamoto experiment: combining active and passive seismic observations to avoid Rayleigh-wave mode misidentification

Earth, Planets and Space, 2023
We present our pathway through participation in the blind Kumamoto exercise, particularly the Step 1 of site characterization. The combination of passive and active seismic imaging techniques is used to image the velocity profile beneath the KUMA site ...
E. Diego Mercerat, T. Dylan Mikesell
doaj   +1 more source

Passive Seismic Interferometry for Subsurface Imaging

, 2015
Seismic interferometry is a method that allows the retrieval of the seismic response at one receiver from a virtual source at the position of another receiver. The method was first proposed in the seismic exploration community by Claerbout (1968) for a horizontally layered subsurface.
Draganov, Deyan, Ruigrok, E.N.
openaire   +2 more sources

Passive Seismic Imaging for Mineral Exploration [PDF]

ASEG Extended Abstracts, 2019
Ambient noise tomography is a new method that does not require an active source to image the subsurface.
Nicola Ramm, Tjaart de Wit, Gerrit Olivier   +2 more
openaire   +1 more source