Results 21 to 30 of about 1,726,373 (224)
Shear-Wave Tomography Using Ocean Ambient Noise with Interference
Remote 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
Performance evaluation of Wied Dalam (WDD) seismic station in Malta [PDF]
, 2014 The continual operation of a permanent seismograph, now exceeding a couple of decades in some cases, naturally involves changes of hardware and software over time.
Panzera, Francesco +3 more
core +1 more source
AMBIENT SEISMIC NOISE FOOTPRINTS AND SPECTRA IN THE MIDDLE BENUE TROUGH, NIGERIA
Earth 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
Applied 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
Terrae 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
Synchronizing seismic networks with ambient noise [PDF]
Geophysical Journal International, 2008 SUMMARY The technique of retrieving Green’s functions by pairwise correlation of a random wavefield is used to estimate the stability of the timing system of a seismic network. The method is demonstrated with data from a network consisting of stations with four independent clocks and GPS-receivers.
openaire +3 more sources
On the Green's function emergence from interferometry of seismic wave fields generated in high-melt glaciers: implications for passive imaging and monitoring [PDF]
The 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
Interferometric surface-wave isolation and removal [PDF]
, 2007 The removal of surface waves (ground roll) from land seismic data is critical in seismic processing because these waves tend to mask informative body-wave arrivals.
Robertsson, Johan O. A. +3 more
core +1 more source
Remote 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
Single‐station monitoring of volcanoes using seismic ambient noise [PDF]
Geophysical Research Letters, 2016 AbstractSeismic ambient noise cross correlation is increasingly used to monitor volcanic activity. However, this method is usually limited to volcanoes equipped with large and dense networks of broadband stations. The single‐station approach may provide a powerful and reliable alternative to the classical “cross‐station” approach when measuring ...
Raphael S. M. De Plaen +4 more
openaire +5 more sources