Results 11 to 20 of about 1,819 (186)

Monitoring diffuse volcanic degassing with seismic ambient noise [PDF]

open access: yesNatural Hazards and Earth System Sciences
Diffuse volcanic degassing is a persistent and often underestimated natural hazard, with potential impacts on air quality, ecosystem health, and volcanic risk management.
H. Seivane, H. Seivane, M. Schimmel
doaj   +3 more sources

Global characteristics of ambient seismic noise [PDF]

open access: yesJournal of Seismology, 2022
AbstractAmbient seismic noise becomes more and more important and helpful on assisting velocity model inversion, earthquake detection, and ground motion prediction. Based on the analysis of continuous seismic data and ocean wave height, we find that the ocean wave height and winter storms have a controlling factor on the DF microseismic energy level ...
Xiaomeng Li   +3 more
openaire   +1 more source

Analysis of one ambient seismic noise in Tianjin

open access: yes地震科学进展
During checking continuous waveform record, it was found that some stations of Tianjin such as EWZ were significantly affected by one unknown noise, and EWZ station was the most seriously affected.
Ye Li   +5 more
doaj   +2 more sources

Full wavefield inversion of ambient seismic noise [PDF]

open access: yesGeophysical Journal International, 2018
We formulate a full wave field inversion for ambient seismic noise recorded by large and dense seismograph arrays. Full wave field inversion exploits the constraints on the gradients of the wave field that array data inherently possess. We pose full wave field inversion as a partial differential equation (PDE) constrained inverse problem resulting in a
S A L de Ridder, J R Maddison
openaire   +2 more sources

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

Spatiotemporal evaluation of Rayleigh surface wave estimated from roadside dark fiber DAS array and traffic noise

open access: yesSeismica, 2023
Seismic imaging and monitoring of the near-surface structure are crucial for the sustainable development of urban areas. However, standard seismic surveys based on cabled or autonomous geophone arrays are expensive and hard to adapt to noisy ...
Rafał Czarny, Tieyuan Zhu, Junzhu Shen
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

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

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

open access: yesTerrae Didatica, 2019
Rainfall-induced variations in pore water pressures are the most common sources of significant disasters like landslides, dams’ failure, and other structural collapses. This study aimed at communicating preliminary results of seasonal monitoring of the Sobradinho landslide, Brasilia, Brazil, using ambient seismic noise.
Yawar Hussain   +7 more
openaire   +1 more source

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