A5005026594- Landslides and related hazards
- Cryospheric studies and observations
- Geological and Geophysical Studies Worldwide
- earthquake and tectonic studies
- Seismic Waves and Analysis
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Seismology and Earthquake Studies
- Archaeological and Historical Studies
- Geological formations and processes
- Flood Risk Assessment and Management
- Geological and Tectonic Studies in Latin America
- Geological Studies and Exploration
- Seismic Imaging and Inversion Techniques
- Historical and socio-economic studies of Spain and related regions
- Geological and Geophysical Studies
- High-pressure geophysics and materials
- Earthquake Detection and Analysis
- Winter Sports Injuries and Performance
- Archaeological and Geological Studies
- Climate change and permafrost
- Hydrocarbon exploration and reservoir analysis
- Anomaly Detection Techniques and Applications
- Geophysics and Sensor Technology
- Tree Root and Stability Studies
Universitat de Barcelona
2013-2025
Institut d'Estudis Catalans
2019-2021
Universidad Complutense de Madrid
1981-1990
Institut de physique du globe de Paris
1989
Government of Catalonia
1989
Abstract. Seismic methods used in the study of snow avalanches may be employed to detect and characterize landslides other mass movements, using standard spectrogram/sonogram analysis. For avalanches, spectrogram for a station that is approached by sliding exhibits triangular time/frequency signature due an increase over time higher-frequency constituents. Recognition this characteristic footprint suggests useful metric identifying mass-movement events such as landslides. The 1 June 2005...
Abstract. After a rockfall event, usual post event survey includes qualitative volume estimation, trajectory mapping and determination of departing zones. However, quantitative measurements are not usually made. Additional relevant information could be useful in determining the spatial occurrence events help us quantifying their size. Seismic suitable for detection purposes since they non invasive methods relatively inexpensive. Moreover, seismic techniques provide important on size location...
New bathymetric and magnetic anomaly data from the Phoenix Ridge, Antarctica, show that extinction of all three remaining segments occurred at time chron C2A (3.3 ± 0.2 Ma), synchronous with a ridge-trench collision south Hero Fracture Zone.This implies ultimate cause was change in plate boundary forces occasioned by this collision.Spreading rates slowed abruptly C4 (7.8 0.3 probably as result West Scotia which would have led to an increase slip rate transpressional stress across Shackleton...
Quarry blasts recorded along three lines on the central Iberian Meseta are used in an attempt to interpret crustal structure. The results of interpretation data, together with published surface wave and earthquake suggest a layered structure crust having following features: basement, some areas covered by up 4 km sediments, has P-velocity 6.1 s−1; low-velocity layer, between 7 11 depth, seems exist basis both P S seismic data; thick middle 12 6.4 s−1 overlies lower mean 6.9 possible slight...
Abstract. The paper analyses and compares infrasonic seismic data from snow avalanches monitored at the Vallée de la Sionne test site in Switzerland 2009 to 2010. Using a combination of infrasound sensors, it is possible not only detect avalanche but also distinguish between different flow regimes analyse duration, average speed (for sections path) size. Different sensitiveness sensors shown. Furthermore, high amplitudes observed signal for one were modelled assuming that suspension layer...
Abstract Powder snow avalanches (PSAs) radiate infrasound energy, yet the source mechanism remains unclear, limiting hazard monitoring and mitigation with infrasound‐based technologies. Here, we analyze a unique data set from large PSA to improve understanding of mechanism. Through comparison cluster activity within airborne layers recorded signal in frequency domain, demonstrate that is mainly generated particle clusters suspended by turbulent eddies or ejected denser basal layer. Further...
Abstract Seismic signals from artificially released avalanches were studied in an attempt to characterize them for avalanche-monitoring purposes. The seismic generated by different sizes and types of recorded analyzed the time frequency domains. Synchronized recordings corresponding video images evolution obtained together with a detailed cartography. Characteristic signatures domains found depend on characteristics avalanche path measuring location, but be mostly independent size. source...
On May 5th, 2013 a planar rock slide (~450 m3) occurred in the village of La Riba (NE Spain), which forced closure road C-240z for 6 months. This left hanging block (~130 suspended on slope forcing controlled blasting, followed by stabilization works. The volume displaced during both events was deduced from LiDAR and photogrammetry data following two approaches: subtracting pre- post-event reconstructing fitting planes structural surfaces after analysis slope. Information about natural...
Abstract The Scotia–Antarctic plate boundary extends along the southern branch of Scotia Arc, between triple junctions with former Phoenix to west (57°W) and Sandwich east (30°W). main mechanism responsible for present arc configuration is development plates from 30–35 Ma, related breakup continental connection South America Antarctic Peninsula. a very complex tectonic zone, because both oceanic elements are involved. Present-day sinistral transcurrent motion probably began 8 Ma ago. active...
The structure of the central part Pyrenean range, traversed by ECORS vertical reflection seismic line, is further constrained a joint interpretation complementary and reprocessed data. Wide‐angle, low‐frequency profiling Moho topography indicates an abrupt termination northern, European at North fault range possible geometries deeper, Iberian which does not seem to extend significantly north this fault. When reprocessing data 25 s two‐way travel time, strong clear straight reflections are...
In this paper, we take a hard look at the performance of REMOTE, sensor network based application that provides detailed picture boat movement, individual rower performance, or his/her compared with other crew members. The analyzes data gathered WSN strategically deployed over to obtain information on and oar movements. Functionalities REMOTE are those RowX [1] outdoor instrument, commercial wired instrument designed for similar purposes. This study demonstrates smart geometrical...