Search Results - "Sallarès, V"

Focal mechanisms for sub-crustal earthquakes in the Gulf of Cadiz from a dense OBS deployment by Geissler, W. H., Matias, L., Stich, D., Carrilho, F., Jokat, W., Monna, S., IbenBrahim, A., Mancilla, F., Gutscher, M.-A., Sallarès, V., Zitellini, N.

“…An eleven‐month deployment of 25 ocean bottom seismometers provides an unprecedented opportunity to study low‐magnitude local earthquakes in the complex…”
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Scale- and parameter-adaptive model-based gradient pre-conditioner for elastic full-waveform inversion by Dagnino, D., Sallarès, V., Ranero, C. R.

“…We present a scale- and parameter-adaptive method to pre-condition the gradient of the parameters to be inverted in time-domain 2-D elastic full-waveform…”
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Imaging meddy finestructure using multichannel seismic reflection data by Biescas, B., Sallarès, V., Pelegrí, J. L., Machín, F., Carbonell, R., Buffett, G., Dañobeitia, J. J., Calahorrano, A.

“…This work illustrates the great potential of multichannel seismic reflection data to extract information from the finestructure of meddies with exceptional…”
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Direct temperature and salinity acoustic full waveform inversion by Bornstein, G., Biescas, B., Sallarès, V., Mojica, J. F.

“…Recent work has shown that Full Waveform Inversion could be suitable to extract physical properties such as sound speed (c), density (ρ), temperature (T), and…”
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TOMO3D: 3-D joint refraction and reflection traveltime tomography parallel code for active-source seismic data—synthetic test by Meléndez, A., Korenaga, J., Sallarès, V., Miniussi, A., Ranero, C.R.

“…We present a new 3-D traveltime tomography code (TOMO3D) for the modelling of active-source seismic data that uses the arrival times of both refracted and…”
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The Structure of the Continent‐Ocean Transition in the Gulf of Lions From Joint Refraction and Reflection Travel‐Time Tomography by Merino, I., Prada, M., Ranero, C. R., Sallarès, V., Calahorrano, A.

“…The Gulf of Lions—Ligurian basin, in the Western Mediterranean, opened from the end of Oligocene to the Miocene as a back‐arc basin driven by rollback of the…”
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Seismic Oceanography in the Tyrrhenian Sea: Thermohaline Staircases, Eddies, and Internal Waves by Buffett, G. G., Krahmann, G., Klaeschen, D., Schroeder, K., Sallarès, V., Papenberg, C., Ranero, C. R., Zitellini, N.

“…We use seismic oceanography to document and analyze oceanic thermohaline fine structure across the Tyrrhenian Sea. Multichannel seismic (MCS) reflection data…”
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The Rift and Continent‐Ocean Transition Structure Under the Tagus Abyssal Plain West of the Iberia by Merino, I., Ranero, C. R., Prada, M., Sallarès, V., Grevemeyer, I.

“…The West Iberia margin is the focus of intense research since the 1980s, with some of the most exemplary geophysical cross‐sections and drilling expeditions…”
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Comparative study of objective functions to overcome noise and bandwidth limitations in full waveform inversion by Jiménez Tejero, C.E., Dagnino, D., Sallarès, V., Ranero, C.R.

“…Ongoing works on full waveform inversion (FWI) are yielding an increasing number of objective functions as alternative to the traditional L2-waveform. These…”
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Mantle exhumation and sequence of magmatic events in the Magnaghi–Vavilov Basin (Central Tyrrhenian, Italy): New constraints from geological and geophysical observations by Prada, M., Ranero, C.R., Sallarès, V., Zitellini, N., Grevemeyer, I.

“…The Tyrrhenian basin opened in the Neogene following the E–SE retreat of the Appenines–Calabrian subduction system and the subsequent back-arc extension of an…”
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Stochastic Heterogeneity Mapping around a Mediterranean salt lens by Buffett, G. G., Hurich, C. A., Vsemirnova, E. A., Hobbs, R. W., Sallarès, V., Carbonell, R., Klaeschen, D., Biescas, B.

“…We present the first application of Stochastic Heterogeneity Mapping based on the band-limited von Kármán function to a seismic reflection stack of a…”
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Relative contribution of temperature and salinity to ocean acoustic reflectivity by Sallarès, V., Biescas, B., Buffett, G., Carbonell, R., Dañobeitia, J. J., Pelegrí, J. L.

“…Marine seismic data display laterally coherent reflectivity from the water column that is attributed to fine‐scale oceanic layering. The amplitude of the…”
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The Gibraltar subduction: A decade of new geophysical data by Gutscher, M.-A., Dominguez, S., Westbrook, G.K., Le Roy, P., Rosas, F., Duarte, J.C., Terrinha, P., Miranda, J.M., Graindorge, D., Gailler, A., Sallares, V., Bartolome, R.

“…The Gibraltar arc, spans a complex portion of the Africa–Eurasia plate boundary marked by slow oblique convergence and intermediate and deep focus seismicity…”
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Effect of seismic source bandwidth on reflection sections to image water structure by Hobbs, R. W., Klaeschen, D., Sallarès, V., Vsemirnova, E., Papenberg, C.

“…The seismic reflection profile is the convolution of the seismic acquisition impulse response and the target impedance contrasts. In the ocean, these contrasts…”
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Application of acoustic full waveform inversion to retrieve high-resolution temperature and salinity profiles from synthetic seismic data by Kormann, J., Biescas, B., Korta, N., de la Puente, J., Sallarès, V.

“…Recent works show that multichannel seismic (MCS) systems are able to provide detailed information on the oceans' fine structure. The aim of this paper is to…”
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Fine‐scale thermohaline ocean structure retrieved with 2‐D prestack full‐waveform inversion of multichannel seismic data: Application to the Gulf of Cadiz (SW Iberia) by Dagnino, D., Sallarès, V., Biescas, B., Ranero, C. R.

“…This work demonstrates the feasibility of 2‐D time‐domain, adjoint‐state acoustic full‐waveform inversion (FWI) to retrieve high‐resolution models of ocean…”
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Seismic tomography with local earthquakes in Costa Rica by Sallarès, V., Dañobeitia, J.J., Flueh, E.R.

“…The Costarican isthmus is located at the western limit of the Caribbean oceanic plateau, where the Cocos plate subducts along the Middle American Trench. This…”
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Seismic structure of the Central Tyrrhenian basin: Geophysical constraints on the nature of the main crustal domains by Prada, M., Sallares, V., Ranero, C. R., Vendrell, M. G., Grevemeyer, I., Zitellini, N., de Franco, R.

“…In this work we investigate the crustal and tectonic structures of the Central Tyrrhenian back‐arc basin combining refraction and wide‐angle reflection seismic…”
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Local earthquakes seismic tomography in the Betic Cordillera (southern Spain) by Dañobeitia, J.J, Sallarès, V, Gallart, J

“…A crustal tomographic image, from the surface down to 35 km depth beneath the Betic Cordillera (southern Spain), is obtained using data on local earthquakes…”
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Nonlinear variations of the physical properties along the southern Ecuador subduction channel: Results from depth-migrated seismic data by Calahorrano B., Alcinoe, Sallarès, Valentí, Collot, Jean-Yves, Sage, Françoise, Ranero, Cesar R.

“…We use two high-quality pre-stack depth-migrated multichannel seismic profiles acquired to quantify physical properties variations of underthrust sediments…”
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