Results 1 to 10 of about 1,799 (182)

Spatial and temporal variation of the ambient noise environment of the Sikkim Himalaya

open access: yesScientific Reports, 2022
Ambient noise characteristics are perused to assess the station performance of 27 newly constructed broadband seismic stations across Sikkim Himalaya and adjoining Himalayan foreland basin, installed to study the seismogenesis and subsurface structure of
Mita Uthaman   +6 more
doaj   +1 more source

Shear-Wave Tomography Using Ocean Ambient Noise with Interference

open access: yesRemote Sensing, 2020
Ambient noise carries abundant subsurface structure information and attracts ever-increasing attention in the past decades. However, there are lots of interference factors in the ambient noise in the real world, making the noise difficult to be utilized ...
Guoli Wu   +3 more
doaj   +1 more source

Seismic Periodic Noise Attenuation Based on Sparse Representation Using a Noise Dictionary

open access: yesApplied Sciences, 2023
Periodic noise is a well-known problem in seismic exploration, caused by power lines, pump jacks, engine operation, or other interferences. It contaminates seismic data and affects subsequent processing and interpretation.
Lixia Sun   +3 more
doaj   +1 more source

AMBIENT SEISMIC NOISE FOOTPRINTS AND SPECTRA IN THE MIDDLE BENUE TROUGH, NIGERIA

open access: yesEarth Science Malaysia, 2019
Ambient noise was analysed from a two-dimensional (2D) seismic data acquired in the Middle Benue Trough, Nigeria for the purpose of characterizing the ambient seismic noise.
Clifford N. C. Mbachi   +5 more
doaj   +1 more source

On the Green's function emergence from interferometry of seismic wave fields generated in high-melt glaciers: implications for passive imaging and monitoring [PDF]

open access: yesThe Cryosphere, 2020
Ambient noise seismology has revolutionized seismic characterization of the Earth's crust from local to global scales. The estimate of Green's function (GF) between two receivers, representing the impulse response of elastic media, can be reconstructed ...
A. Sergeant   +9 more
doaj   +1 more source

Near-Surface Structure Investigation Using Ambient Noise in the Water Environment Recorded by Fiber-Optic Distributed Acoustic Sensing

open access: yesRemote Sensing, 2023
Near-surface structure investigation plays an important role in studying shallow active faults and has various engineering applications. Therefore, we developed a near-surface structure investigation method using ambient noise in a water environment ...
Jie Shao   +4 more
doaj   +1 more source

A novel horizontal to vertical spectral ratio approach in a wired structural health monitoring system [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2014
This work studies the effect ambient seismic noise can have on building constructions, in comparison with the traditional study of strong seismic motion in buildings, for the purpose of structural health monitoring. Traditionally, engineers have observed
F. P. Pentaris
doaj   +1 more source

Identifying the Fingerprint of a Volcano in the Background Seismic Noise from Machine Learning-Based Approach

open access: yesApplied Sciences, 2022
This work is devoted to the analysis of the background seismic noise acquired at the volcanoes (Campi Flegrei caldera, Ischia island, and Vesuvius) belonging to the Neapolitan volcanic district (Italy), and at the Colima volcano (Mexico).
Diego Rincon-Yanez   +4 more
doaj   +1 more source

Impacts of Reservoir Water Level Fluctuation on Measuring Seasonal Seismic Travel Time Changes in the Binchuan Basin, Yunnan, China

open access: yesRemote Sensing, 2021
An airgun source in a water reservoir has been developed in the past decade as a green active source that had been proven effective to derive short-term subsurface structural changes. However, seasonal water level fluctuation in the reservoir affects the
Chunyu Liu   +3 more
doaj   +1 more source

Advanced monitoring of tailings dam performance using seismic noise and stress models

open access: yesCommunications Earth & Environment, 2022
Ambient seismic noise interferometry combined with a quantitative stress model can be used to determine changes in seismic wave velocity and, by extension, other geotechnical parameters which are critical to monitoring tailings dam ...
Susanne M. Ouellet   +4 more
doaj   +1 more source

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