Results 61 to 70 of about 608,037 (261)

Supervirtual Seismic Interferometry with Adaptive Weights to Suppress Scattered Wave

Applied Sciences
Land seismic data are always contaminated by surface waves, which demonstrate strong energy, low velocity, and long vibrations. Such noises often mask deep effective reflections, seriously reducing the data’s signal-to-noise ratio while limiting the ...
Chunming Wang, Xiaohong Chen, Shanglin Liang, Sian Hou, Jixiang Xu   +4 more
doaj   +1 more source

Fundamental properties of the Population II fiducial stars HD 122563 and Gmb 1830 from CHARA interferometric observations [PDF]

, 2012
We have determined the angular diameters of two metal-poor stars, HD 122563 and Gmb 1830, using CHARA and Palomar Testbed Interferometer observations. For the giant star HD 122563, we derive an angular diameter theta_3D = 0.940 +- 0.011 milliarcseconds ...
A. Chiavassa, A. Mérand, Alexander, Allende Prieto, Alonso, Alonso, Andrievsky, B. Pichon, Barbuy, Bedding, Bigot, Bigot, Blackwell, Boyajian, Boyajian, Brown, Butler, C. Farrington, Casagrande, Chiavassa, Chiavassa, Claret, Colavita, Colavita, Collet, Coudé du Foresto, Deliyannis, Eggleton, Eggleton, F. Thévenin, G. T. van Belle, Gehren, González Hernández, Gustafsson, H. A. Mc Alister, Hanbury Brown, Hayek, Houdashelt, Huber, J. Sturmann, Johnson, Kervella, Kervella, Kervella, Kervella, King, Kjeldsen, L. Bigot, L. Sturmann, Lebreton, Luck, Mashonkina, Mashonkina, Mathur, Merle, Mishenina, Morel, Morel, Morel, Mosser, Mérand, N. Turner, O. L. Creevey, P. J. Goldfinger, P. Kervella, P. Morel, Pereira, R. Collet, Ramírez, Ramírez, Rogers, Rogers, Roxburgh, Soubiran, Spite, Stello, T. A. ten Brummelaar, T. S. Boyajian, ten Brummelaar, Thévenin, U. Heiter, V. Coudé du Foresto, van Leeuwen, Verner, Wallerstein, Wolffram, Yıldız   +86 more
core   +4 more sources

The Effects of Carbonate Precipitation on the Physical Properties of Basalt

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract To avoid the negative consequences of climate change, there is an urgent need to remove carbon dioxide from the atmosphere. Carbon mineralization—the conversion of injected CO2 into stable carbonate minerals—offers a promising pathway for large‐scale, permanent geologic storage. While projects such as CarbFix have demonstrated its feasibility,
Jonathan Simpson, Matěj Peč, Hoagy O’Ghaffari, Sharath Chandra Mahavadi, Jean E. Elkhoury   +4 more
wiley   +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

On the Potential of Large Ring Lasers

, 2007
We describe a new ring laser with area A = 833 m^2 and update performance statistics for several such machines. Anandan & Chaio 1982 judged ring lasers inferior to matter interferometers as possible detectors of gravitational waves. However, we note that
Anandan, Anandan, Avenel, Blair, Brodin, Chaboyer, Chaio, Chaio, Clauser, Corbitt, Cuise, Dunn, G.E. Stedman, Gustavson, Hasselbach, Herrera, Igel, K.U. Schreiber, Lenef, McGuirk, Michelson, Neutze, R.B. Hurst, Rowe, Schreiber, Schreiber, Schreiber, Sorge, Stedman, Stedman, Stedman, Stedman, Tinto, Vallisneri, Ziyuan   +34 more
core   +1 more source

Distant Storms Can Affect Seismic Noise Crustal Monitoring

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Using seismic noise interferometry to monitor the Earth's interior relies on continuous seismic wavefields produced by stable, invariant sources. In numerous applications, this condition is relaxed, arguing that secondary scattering effects render the late coda source independent.
Jinwu Li, Sin‐Mei Wu, Pilar Sánchez‐Pastor, Laura Ermert, Anne Obermann   +4 more
wiley   +1 more source

Hydrate-Bearing Sediment Imaging of Ghost Reflection in Vertical Cable Seismic Data Using Seismic Interferometry

Geofluids, 2022
Marine vertical cable seismic (VCS) collects seismic waves by hydrophone array vertically suspended in seawater to prospect the offshore geological structure and monitor the reservoir.
Linfei Wang, Zhong Wang, Huaishan Liu, Jin Zhang, Lei Xing, Yanxin Yin   +5 more
doaj   +1 more source

Geodetic, teleseismic, and strong motion constraints on slip from recent southern Peru subduction zone earthquakes [PDF]

, 2007
We use seismic and geodetic data both jointly and separately to constrain coseismic slip from the 12 November 1996 M_w 7.7 and 23 June 2001 M_w 8.5 southern Peru subduction zone earthquakes, as well as two large aftershocks following the 2001 earthquake ...
Boroschek, R., Comte, D., Dixon, T. H., Jillings, C., Norabuena, E. O., Pritchard, M. E., Rosen, P. A., Simons, M.   +7 more
core   +1 more source

GPS source solution of the 2004 Parkfield earthquake [PDF]

, 2014
We compute a series of finite-source parameter inversions of the fault rupture of the 2004 Parkfield earthquake based on 1 Hz GPS records only. We confirm that some of the co-seismic slip at shallow depth (
Dreger, D., Houlie, N., Kim, A.
core   +2 more sources

Interplay of Tectonics and Topography Facilitated Sudden Dyke Intrusion in 2022 at São Jorge Island, Azores

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Oblique slow rifting in a hotspot setting has created a distributed volcanic zone in the central part of the Azores but it's unclear what causes focusing of magma upflow under the islands within a wide plate boundary deformation zone. For São Jorge Island, we use a three‐dimensional finite element model to evaluate crustal stress from the ...
J. D’Araújo, A. Hooper, M. Lazecky, F. Sigmundsson, F. Albino, T. Ferreira, J. L. Gaspar   +6 more
wiley   +1 more source