A5011056229- Geological and Geophysical Studies Worldwide
- Seismic Waves and Analysis
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Seismology and Earthquake Studies
- Geological and Tectonic Studies in Latin America
- High-pressure geophysics and materials
- Geophysics and Sensor Technology
- Archaeological and Historical Studies
- Earthquake Detection and Analysis
- Landslides and related hazards
- Geophysical Methods and Applications
- Reservoir Engineering and Simulation Methods
- Geophysical and Geoelectrical Methods
- Underwater Acoustics Research
- Drilling and Well Engineering
- Geochemistry and Geologic Mapping
- 3D Surveying and Cultural Heritage
- Meteorological Phenomena and Simulations
- Structural Health Monitoring Techniques
- Karst Systems and Hydrogeology
- Climate variability and models
- Benford’s Law and Fraud Detection
- Geotechnical and Geomechanical Engineering
Geociencias Barcelona
2015-2024
Universitat de Barcelona
2022
Consejo Superior de Investigaciones Científicas
2002-2019
Research Center on Earth Sciences
2019
Unidades Centrales Científico-Técnicas
2015
Centre National de la Recherche Scientifique
2013
Université Côte d'Azur
2013
Géoazur
2011
National Polytechnic School
2009
Research Article| June 01, 2016 The deep roots of the western Pyrenees revealed by full waveform inversion teleseismic P waves Yi Wang; Wang 1Géosciences Environnement Toulouse, UMR 5563, Observatoire Midi Pyrénées, Université Paul Sabatier, 31400 France2School Earth and Space Science, University Science Technology China, Hefei 230026, China Search for other works this author on: GSW Google Scholar Sébastien Chevrot; Chevrot * France *E-mail: sebastien.chevrot@get.omp.eu Vadim Monteiller;...
Urban seismology has become an active research field in the recent years, both with seismological objectives, as obtaining better microzonation maps highly populated areas, and engineering monitoring of traffic or surveying historical buildings. We analyze here seismic records obtained by a broad-band station installed ICTJA-CSIC institute, located near center Barcelona city. Although this was to introduce visitors earth science during fairs other dissemination events, analysis data allowed...
Abstract The lithospheric structures beneath the Pyrenees, which holds key to settle long‐standing controversies regarding opening of Bay Biscay and formation are still poorly known. temporary PYROPE IBERARRAY experiments have recently filled a strong deficit seismological stations in this part western Europe, offering new unique opportunity image crustal mantle with unprecedented resolution. Here we report results first tomographic study Pyrenees relying on rich data set. important aspects...
We exploit the data from five seismic transects deployed across Pyrenees to characterize deep architecture of this collisional orogen. map main interfaces beneath each transect by depth migration P-to-S converted phases. The migrated sections, combined with results recent tomographic studies and maps Bouguer isostatic anomalies, provide a coherent crustal-scale picture belt. In Western Pyrenees, North Pyrenean Zone, continuous band high density/velocity material is found at very shallow...
Between 2011 and 2013, two dense transects were deployed across the central western Pyrenees to get better constraints on deep lithospheric architecture discriminate competing models of structure formation Pyrenees. Each transect recorded regional global seismicity during a period approximately 1 yr. Here, we exploit records teleseismic compressional waves their conversions shear internal discontinuities in order map interfaces beneath transects. The migrated sections, obtained by performing...
Data acquired by a dense seismic network deployed in the Cerdanya basin (Eastern Pyrenees) is used to track temporal and spatial evolution of meteorological events such as rainfall episodes or thunderstorms. Comparing data, we show that for frequencies above 40 Hz, dominant source noise hence amplitude data can be proxy rainfall. The interstation distance 1.5 km provides an unprecedented resolution along basin. Two specific episodes, one dominated stratiform rain second convective rain, are...
The high degree of human activities in urban environments produces large background vibrations that makes it difficult to use data acquired these areas for classical seismology. Seismometers installed within cities have been typically used the study seismic hazard or monitoring civil engineering problems. However, with development techniques based on interpretation so-called ambient noise, gained scientific interest. Our objective is discuss an additional utility seismometers deployed a...
Abstract The Canfranc underground laboratory (LSC), excavated under the Central Pyrenees, is mainly devoted to study of phenomena which needs “cosmic silence.” It also hosts a geodynamical facility, named Geodyn, holds an accelerometer, broadband seismometer, and two high‐resolution laser strainmeters. During routine processing seismic data, we detected unusual spectral signature in 2–10 Hz frequency band, does not correspond typical sources noise can be recognized strain records. After...
An optimal strategy for building realistic geological models must combine different geophysical techniques, each with its advantages and limitations. However, dealing multiple datasets to derive a interpretation is not straightforward since parameters are always functionally related. In this work, we propose an innovative approach consisting of using machine learning techniques jointly interpret three (a pseudo-3D resistivity model, 3D velocity 4 well-logs). These datasets, among others,...
The Granada Basin is a slowly deforming intramountain basin in the Betic Cordillera (S-Spain). Despite historical and paleoseismological evidence for M6 earthquakes, instrumental seismicity lacks large events seismotectonic model must be built from small earthquakes (M < 5). Here, we reanalyze 35 years of data short period network, further seismic stations with shorter operating time, to identify seismogenic structures understand their relationships. We sort similar waveforms into multiplet...
Data recorded during a temporary deployment of ocean bottom seismometers (OBSs) are used in this study to monitor the presence fin whales around array. In summer 2003, ten OBSs were placed 250km from NW coast Iberia Galicia Margin, NE Atlantic Ocean for period one month. The data set provided large variety signals, including whale vocalizations identified by their specific acoustic signature. use dense array seafloor receivers allowed investigation into locations and tracks signal-generating...
Abstract. During the COVID-19 pandemic lockdown, city of Barcelona was covered by a dense seismic network consisting up to 19 sensors. This has provided an excellent tool investigate in detail background seismic-noise variations associated with lockdown measures. Permanent stations facilitate comparing noise recorded during quieting long-term due holiday periods. On other hand, data acquired show differences between sites located near industrial areas, transportation hubs or residential...
Abstract The analysis of the background noise in seismic networks has proved to be a powerful tool not only acquire new insights on crustal structure, but also monitor different natural and anthropogenic processes. We show that data acquired during controlled source experiments can valuable such processes, particular when using high-density deployments. Data from wide-angle reflection refraction profile central-northwest part Iberia is used identify signals related aircrafts, road traffic,...
Abstract. Ambient seismic noise acquired in the Cerdanya Basin (eastern Pyrenees) is used to assess capability of different methodologies map geometry a small-scale sedimentary basin. We present results based on 1-year-long broad-band deployment covering large part eastern Pyrenees and 2-month-long high-density basin with interstation distances around 1.5 km. The explored techniques include autocorrelations, ambient Rayleigh wave tomography, horizontal-to-vertical-spectra ratio (HVSR)...
Abstract. The Spanish Central System is an intraplate mountain range that divides the Iberian Inner Plateau in two sectors – northern Duero Basin and Tajo to south. topography of area highly variable with having average altitude 450–500 m a higher 750–800 m. characterized by thick-skin pop-up pop-down configuration formed reactivation Variscan structures during Alpine orogeny. high is, most probably, response tectonically thickened crust should be (1) geometry Moho discontinuity, (2)...