Results 221 to 230 of about 5,707 (252)

Ambient noise tomography of Eyjafjallajökull volcano, Iceland

Journal of Volcanology and Geothermal Research, 2017
We present a shear-velocity model for the Eyjafjallajokull stratovolcano, based on ambient seismic noise tomography applied to seven months of data from six permanent stations and -10 temporary sei ...
Ásdís Benediktsdóttir, Ólafur Gudmundsson, Bryndís Brandsdóttir, Ari Tryggvason   +3 more
openaire   +1 more source

Ambient seismic noise tomography at Valhall

SEG Technical Program Expanded Abstracts 2011, 2011
Although permanent ocean-bottom cables installed at the Valhall field record high-quality and repeatable active seismic surveys, even in absence of active seismic shooting the array can record an abundance of seismic energy. Seismic interferometry of 29 hours of passive seismic data generates omnidirectional Scholte-wave virtual-sources at very low ...
openaire   +1 more source

Geotechnical site characterization with 3D ambient noise tomography

Geophysics, 2023
ABSTRACT We develop a new 3D ambient noise tomography (3D ANT) method for geotechnical site characterization. It requires recording ambient noise fields using a 2D surface array of geophones, from which experimental crosscorrelation functions (CCFs) are then extracted and directly inverted to obtain an S-wave velocity (VS) structure ...
Yao Wang, Khiem T. Tran, Brady R. Cox, Joseph P. Vantassel   +3 more
openaire   +1 more source

Ambient Noise Tomography in Northeastern United States

2019
The tectonic structure of the crust in the northeast region of the US is both compositionally complex and tectonically stable relative to lithospheric structures that formed during earlier geological periods. Data from the EarthScope Transportable Array collected in 2014 are used to calculate a three-dimensional shear velocity model of the crust and ...
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Passive acoustic and seismic tomography with ocean ambient noise

The Journal of the Acoustical Society of America, 2005
We have demonstrated with ocean acoustic data and associated theory and land seismic data that the Green’s functions between pairs of receiving sensors can be obtained from a long-time correlation process. Noise data from fixed acoustic and seismic sensors can be used to study the ocean structure, the ocean bottom structure below the sensor field, and ...
Peter Gerstoft, Karim Sabra, Phillippe Roux, W. A. Kuperman, William S. Hodgkiss   +4 more
openaire   +1 more source

Ambient-noise tomography of Katla volcano, south Iceland

Journal of Volcanology and Geothermal Research, 2017
Abstract A shear-wave velocity model of subglacial Katla volcano, southern Iceland, has been developed using ambient seismic noise tomography based on data from a temporary network operating between May 2011 and August 2013 and permanent stations around the volcano.
Zeinab Jeddi, Olafur Gudmundsson, Ari Tryggvason   +2 more
openaire   +1 more source

Ambient noise tomography of Misti volcano, Peru

Journal of Volcanology and Geothermal Research, 2022
Iván Cabrera-Pérez, Riky Centeno, Jean Soubestre, Luca D'Auria, Marco Rivera, Roger Machacca   +5 more
openaire   +1 more source

Road Sinkhole Imaging with Ambient Noise Tomography

Geo-Congress 2022, 2022
Yao Wang, Khiem T. Tran, David Horhota
openaire   +1 more source

Cover Mapping Using Ambient Noise Surface Wave Tomography

82nd EAGE Annual Conference & Exhibition, 2021
Anais Lavoué, Nicholas Arndt, Richard Lynch, Roméo Courbis, Charles Beard, Aurélien Mordret   +5 more
openaire   +1 more source

Application of ambient noise tomography for deep void detection

Journal of Applied Geophysics, 2023
Yao Wang, Mohammad Khorrami, Khiem T. Tran, David Horhota   +3 more
openaire   +1 more source